Internet Draft R. Woundy (editor) IPCDN Working Group Comcast Cable draft-ietf-ipcdn-device-mibv2-04.txt January 2003 Cable Device Management Information Base for DOCSIS compliant Cable Modems and Cable Modem Termination Systems Status of this Memo This document is an Internet-Draft and is in full conformance with all provisions of Section 10 of RFC2026. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF), its areas, and its working groups. Note that other groups may also distribute working documents as Internet- Drafts. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as reference material or to cite them other than as "work in progress." The list of current Internet-Drafts can be accessed at http://www.ietf.org/ietf/1id-abstracts.txt The list of Internet-Draft Shadow Directories can be accessed at http://www.ietf.org/shadow.html. Copyright Notice Copyright (C) The Internet Society (2003). All Rights Reserved. Abstract This memo is a draft revision of the standards track RFC-2669. Please see "Revision Descriptions" below for a description of changes. This document will obsolete RFC-2669 when accepted. This memo defines a portion of the Management Information Base (MIB) for use with network management protocols in the Internet community. In particular, it defines a basic set of managed objects for SNMP- based management of DOCSIS compliant Cable Modems and Cable Modem Termination Systems. This memo is a product of the IPCDN working group within the Internet Engineering Task Force. Comments are solicited and should be Expires July 2003 [Page 1]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 addressed to the working group's mailing list at ipcdn@ietf.org and/or the author. Table of Contents 1 The Internet-Standard Management Framework ................... 2 2 Glossary ..................................................... 2 3 Overview ..................................................... 3 3.1 Structure of the MIB ....................................... 4 3.2 Management requirements .................................... 5 3.3 Protocol Filters ........................................... 7 4 Definitions .................................................. 11 5 Acknowledgments .............................................. 64 6 Revision Descriptions ........................................ 65 7 Normative References ......................................... 65 8 Informative References ....................................... 67 9 Security Considerations ...................................... 68 10 Intellectual Property ....................................... 70 11 Editor's Address ............................................ 70 12 Copyright Section ........................................... 71 1. The Internet-Standard Management Framework For a detailed overview of the documents that describe the current Internet-Standard Management Framework, please refer to section 7 of RFC 3410 [RFC3410]. Managed objects are accessed via a virtual information store, termed the Management Information Base or MIB. MIB objects are generally accessed through the Simple Network Management Protocol (SNMP). Objects in the MIB are defined using the mechanisms defined in the Structure of Management Information (SMI). This memo specifies a MIB module that is compliant to the SMIv2, which is described in STD 58, RFC 2578 [RFC2578], STD 58, RFC 2579 [RFC2579] and STD 58, RFC 2580 [RFC2580]. 2. Glossary The terms in this document are derived either from normal cable system usage, or from the documents associated with the Data Over Cable Service Interface Specification process. 2.1. CATV Originally "Community Antenna Television", now used to refer to any cable or hybrid fiber and cable system used to deliver video signals to a community. Expires July 2003 [Page 2]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 2.2. CM Cable Modem. A CM acts as a "slave" station in a DOCSIS compliant cable data system. 2.3. CMTS Cable Modem Termination System. A generic term covering a cable bridge or cable router in a head-end. A CMTS acts as the master station in a DOCSIS compliant cable data system. It is the only station that transmits downstream, and it controls the scheduling of upstream transmissions by its associated CMs. 2.4. DOCSIS "Data Over Cable Interface Specification". A term referring to the ITU-T J.112 Annex B standard for cable modem systems. [RFI1.0] [RFI1.1] 2.5. Downstream The direction from the head-end towards the subscriber. 2.6. Head-end The origination point in most cable systems of the subscriber video signals. Generally also the location of the CMTS equipment. 2.7. MAC Packet A DOCSIS PDU. 2.8. RF Radio Frequency. 2.9. Upstream The direction from the subscriber towards the head-end. 3. Overview This MIB provides a set of objects required for the management of DOCSIS compliant Cable Modems (CM) and Cable Modem Termination Systems (CMTS). The specification is derived from the DOCSIS Radio Frequency Interface specification [RFI1.0]. Please note that the DOCSIS 1.0 standard only requires Cable Modems to implement SNMPv1 and to process IPv4 customer traffic. Design choices in this MIB Expires July 2003 [Page 3]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 reflect those requirements. DOCSIS 1.1 [RFI1.1] requires support for SNMPv3, as well as SNMPv1 and SNMPv2c, and the changes in this MIB over the previous proposed standard version reflect those additional requirements. Future versions of DOCSIS are are expected to require support for IPv6 as both a CPE protocol and one supported by the network elements of the DOCSIS CMTS/CM system. The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in [RFC2119]. 3.1. Structure of the MIB This MIB is structured into eight groups: o The docsDevBase group extends the MIB-II 'system' group with objects needed for cable device system management. o The docsDevNmAccessGroup provides a minimum level of SNMP access security (see Section 3 of [OSSI1.0]). o The docsDevSoftware group provides information for network- downloadable software upgrades. See "Handling of Software Upgrades" below. o The docsDevServer group provides information about the progress of the interaction between the CM or CMTS and various provisioning servers. o The docsDevEvent group provides control and logging for event reporting. o The docsDevFilter group configures filters at link layer and IP layer for bridged data traffic. This group consists of a link- layer filter table, docsDevFilterLLCTable, which is used to manage the processing and forwarding of non-IP traffic; an IP packet classifier table, docsDevFilterIpTable, which is used to map classes of packets to specific policy actions; a policy table, docsDevFilterPolicyTable, which maps zero or more policy actions onto a specific packet classification, and one or more policy action tables. At this time, this MIB specifies only one policy action table, docsDevFilterTosTable, which allows the manipulation of the type of services bits in an IP packet based on matching some criteria. The working group may add additional policy types and Expires July 2003 [Page 4]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 action tables in the future, for example to allow QOS to modem service identifier assignment based on destination [QOS-MIB]. o The docsDevCpe group provides control over which IP addresses may be used by customer premises equipment (e.g. PCs) serviced by a given cable modem. This provides anti-spoofing control at the point of origin for a large cable modem system. This group is separate from docsDevFilter primarily as this group is only implemented on the Cable Modem (CM) and MUST NOT be implemented on the Cable Modem Termination System (CMTS). o The docsDevVacmAccessExt group extends the VACM access table by adding an object representing the expected inbound interface(s) for which the referenced VACM view applies. 3.2. Management requirements 3.2.1. Handling of Software upgrades The Cable Modem software upgrade process is documented in [RFI1.0]. From a network management station, the operator: o sets docsDevSwServer to the address of the TFTP server for software upgrades o sets docsDevSwFilename to the file pathname of the software upgrade image o sets docsDevSwAdminStatus to upgrade-from-mgt While DOCSIS only specifies the implementation of the TFTP protocol [RFC1350] for file transfers, other functional entities embedded within the cable device (particularly a PacketCable Multimedia Terminal Adapter [MTA-PROV]) specify the optional implementation of the HTTP protocol [RFC1945][RFC2068] for file transfers. The value of the docsDevSwServerTransportProtocol object determines which protocol is used for SNMP-initiated software upgrade. One reason for the SNMP-initiated upgrade is to allow loading of a temporary software image (e.g., special diagnostic software) that differs from the software normally used on that device without changing the provisioning database. Note that software upgrades should not be accepted blindly by the cable device. The cable device may refuse an upgrade if: o The download is incomplete. Expires July 2003 [Page 5]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 o The file contents are incomplete or damaged. o The software is not intended for that hardware device (may include the case of a feature set that has not been purchased for this device). A cable device that implements the code verification mechanisms of [BPIPLUS] verifies the source and integrity of the downloaded image by validating one or more Code Verification Signatures that are bundled within the software upgrade. 3.2.2. Events and Notifications This MIB provides control facilities for reporting events through syslog, notifications (traps and informs), and non-volatile logging. The conventions for event reporting are outside the scope of this document. The definition and coding of common DOCSIS notifications can be found in [EVENT-MIB]. 3.2.3. Notification Throttling The CM and CMTS MUST provide support for notification message throttling as described below. The network operator can employ notification rate throttling or notification limiting by manipulating the appropriate MIB variables. 3.2.3.1. Notification rate throttling Network operators may employ either of two rate control methods. In the first method, the device ceases to send notifications when the rate exceeds the specified maximum message rate. It resumes sending notifications only if reactivated by a network management station request. In the second method, the device resumes sending notifications when the rate falls below the specified maximum message rate. The network operator configures the specified maximum message rate by setting the measurement interval (in seconds), and the maximum number of notifications to be transmitted within the measurement interval. The operator can query the operational throttling state (to determine whether notifications are enabled or blocked by throttling) of the device, as well as query and set the administrative throttling state (to manage the rate control method) of the device. 3.2.3.2. Limiting the notification rate Expires July 2003 [Page 6]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 Network operators may wish to limit the number of notifications sent by a device over a specified time period. The device ceases to send notifications when the number of notifications exceeds the specified threshold. It resumes sending notifications only when the measurement interval has passed. The network operator defines the maximum number of notifications he is willing to handle and sets the measurement interval to a large number (in hundredths of a second). For this case, the administrative throttling state is set to stop at threshold which is the maximum number of notifications. See "Techniques for Managing Asynchronously Generated Alerts" [RFC1224] for additional technical motivations. 3.3. Protocol Filters The Cable Device MIB provides objects for both LLC and IP protocol filters. The LLC protocol filter entries can be used to limit CM forwarding to a restricted set of network-layer protocols (such as IP, IPX, NetBIOS, and Appletalk). The IP protocol filter entries can be used to restrict upstream or downstream traffic based on source and destination IP addresses, transport-layer protocols (such as TCP, UDP, and ICMP), and source and destination TCP/UDP port numbers. In general, a cable modem applies filters (or more properly, classifiers) in an order appropriate to the layering model. Specifically, the inbound MAC (or LLC) layer filters are applied first, then the "special" filters, then the IP layer inbound filters, then the IP layer outbound filters, then any final LLC outbound filters. ***************** * LLC Filter In * ***************** | v ******************* * Special Filters * * | * * V * * ************ * * * IP Spoof * * * ************ * * | * * v * Expires July 2003 [Page 7]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 * *************** * * * SNMP Access * * * *************** * * | * ******************* | v **************** * IP Filter In * **************** | v ***************** * IP Filter Out * ***************** | v ****************** * LLC Filter Out * ****************** 3.3.1. Inbound LLC Filters - docsDevFilterLLCTable The inbound LLC (or MAC or level-2) filters are contained in the docsDevFilterLLCTable and are applied to level-2 frames entering the cable modem from either the RF MAC interface or from one of the CPE interfaces (physical or logical). These filters are used to prohibit the processing and forwarding of certain types of level-2 traffic that may be disruptive to the network. The filters, as currently specified, can be set to cause the modem to either drop frames which match at least one filter, or to process a frame which matches at least one filter. Some examples of possible configurations would be to only permit IP (and ARP) traffic, or to drop NetBIOS traffic. 3.3.2. Special Filters Special filters are applied after the packet is accepted from the MAC layer by the IP module, but before any other processing is done. They are filters that apply only to a very specific class of traffic. 3.3.2.1. IP Spoofing Filters - docsDevCpeTable IP spoofing filters are applied to packets entering the modem from one of the CPE interfaces and are intended to prevent a subscriber from stealing or mis-using IP addresses that were not assigned to the subscriber. If the filters are active (enabled), the source address of the IP packet must match at least one IP address in this table or it is discarded without further processing. Expires July 2003 [Page 8]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 The table can be automatically populated where the first N different IP addresses seen from the CPE side of the cable modem are used to automatically populate the table. The spoofing filters are specified in the docsDevCpeTable and the policy for automatically creating filters in that table is controlled by docsDevCpeEnroll and docsDevCpeMax as well as the network management agent. Similar IP spoofing filter controls are defined for CMTS implementation in the Subscriber Management MIB [SUBMGT-MIB]. 3.3.2.2. SNMP Access Filters - docsDevNmAccessTable The SNMP access filters are applied to SNMP packets entering from any interface and destined for the cable modem. If the packets enter from a CPE interface, the SNMP filters are applied after the IP spoofing filters. The filters only apply to SNMPv1 or SNMPv2c traffic, and are not consulted for SNMPv3 traffic (and need not be implemented by a v3 only agent). SNMPv3 access control is specified in the User Security Model MIB in [RFC3414]. With the completion of the SNMP coexistence document, RFC 2576 [RFC2576], docsDevNmAccess table has been deprecated in this version of the MIB. See the body of the MIB for the description of how agents should handle the interaction between RFC 2576 MIBs and this MIB. docsDevNmAccessTable specified a mechanism for limiting SNMP access based on interface. That capability has been retained as a set of augmenting objects to the vacmAccessTable of the view-based access control MIB, RFC 3415 [RFC3415]. Please see the description for docsDevVacmAccessExtTable in the body of the MIB below. Basically, SNMP packets are tagged with the interface through which they are received by the agent. If that interface is not included in the set of interfaces referenced by this table for a particular view, then that view is not visible for that SNMP request. 3.3.3. IP Filtering - docsDevFilterIpTable The IP Filtering table acts as a classifier table. Each row in the table describes a template against which IP packets are compared. The template includes source and destination addresses (and their associated masks), upper level protocol (e.g. TCP, UDP), source and destination port ranges, TOS and TOS mask. A row also contains interface and traffic direction match values which have to be considered in combination. All columns of a particular row must match the appropriate fields in the packet, and must match the interface and direction items for the packet to result in a match to the packet. Expires July 2003 [Page 9]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 When classifying a packet, the table is scanned beginning with the lowest number filter. If the agent finds a match, it applies the group of policies specified. If the matched filter has the continue bit set, the agent continues the scan possibly matching additional filters and applying additional policies. This allows the agent to take one set of actions for the 24.0.16/255.255.255.0 group and one set of actions for telnet packets to/from 24.0.16.30, and these sets of actions may not be mutually exclusive. Once a packet is matched, one of three actions happen based on the setting of docsDevFilterIpControl in the row. The packet may be dropped, in which case no further processing is required. The packet may be accepted and processing of the packet continues. Lastly, the packet may have a set of policy actions applied to it. If docsDevFilterIpContinue is set to true, scanning of the table continues and additional matches may result. When a packet matches, and docsDevFilterIpControl in the filter matched is set to 'policy', the value of docsDevFilterIpPolicyId is used as a selector into the docsDevFilterPolicyTable. The first level of indirection may result in zero or more actions being taken based on the match. The docsDevFilterPolicyTable is scanned in row order and all rows where docsDevFilterPolicyId equals docsDevFilterIpPolicyId have the action specified by docsDevFilterPolicyValue 'executed'. For example, a value pointing to an entry in the docsDevFilterTosTable may result in the re-writing of the TOS bits in the IP packet which was matched. Another possibility may be to assign an output packet to a specific output upstream queue. An even more complex action might be to re-write the TOS value, assign the packet to an upstream service ID, and drop it into a particular IPSEC tunnel. Example: docsDevFilterIpTable ## Index, SrcIP/Mask, DstIP/Mask,ULP, SrcPts,DstPts,Tos/Mask, # Int/Dir, Pgroup, [continue] # drop any netbios traffic 10, 0/0, 0/0, TCP, any, 137-139, 0/0, any/any, drop # traffic to the proxy gets better service - other matches possible 20, 0/0, proxy/32, TCP, any,any, 0/0, cpe/in, 10, continue # Traffic from CPE 1 gets 'Gold' service, other matches possible 30, cpe1/32, 0/0, any, any,any, 0/0, cpe/in, 20, continue # Traffic from CPE2 to work goes, other traffic dropped Expires July 2003 [Page 10]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 40, cpe2/32, workIPs/24, any, 0/0, cpe/in, accept 45, cpe2/32, 0/0, any, any,ayn, 0/0, cpe/in, drop # Traffic with TOS=4 gets queued on the "silver" queue. 50, 0/0, 0/0, any, any,any, 4/255, cpe/in, 30 # Inbound "server" traffic to low numbered ports gets dropped. 60, 0/0, 0/0, TCP, any,1-1023, 0/0, cpe/out, drop 65, 0/0, 0/0, UDP, any,1-1023, 0/0, cpe/out, drop docsDevFilterPolicyTable # # index, policy group, policy 10, 10, queueEntry.20 -- special queue for traffic to proxy 15, 20, queueEntry.15 -- Gold Service queue 20, 20, docsDevFilterTosStatus.10 -- Mark this packet with TOS 5 25, 30, queueEntry.10 -- Silver service queue This table describes some special processing for packets originating from either the first or second CPE device which results in their queuing on to special upstream traffic queues and for the "gold" service results in having the packets marked with a TOS of 5. The 10, 20, 60 and 65 entries are generic entries that would generally be applied to all traffic to this CM. The 30, 40 and 45 entries are specific to a particular CPE's service assignments. The ordering here is a bit contrived, but is close to what may actually be required by the operator to control various classes of customers. Similar IP classifier controls are defined for CMTS implementation in the Subscriber Management MIB [SUBMGT-MIB]. 3.3.4. Outbound LLC Filters Lastly, any outbound LLC filters are applied to the packet just prior to it being emitted on the appropriate interface. This MIB does not specify any outbound LLC filters, but it is anticipated that the QOS additions to the DOCSIS standard [QOS-MIB] may include some outbound LLC filtering requirements. If so, those filters would be applied as described there. 4. Definitions DOCS-CABLE-DEVICE-MIB DEFINITIONS ::= BEGIN IMPORTS Expires July 2003 [Page 11]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 MODULE-IDENTITY, OBJECT-TYPE, IpAddress, Unsigned32, Counter32, Integer32, zeroDotZero, mib-2 FROM SNMPv2-SMI RowStatus, RowPointer, DateAndTime, TruthValue FROM SNMPv2-TC InetAddressType, InetAddress, InetPortNumber, InetAddressIPv6 FROM INET-ADDRESS-MIB OBJECT-GROUP, MODULE-COMPLIANCE FROM SNMPv2-CONF SnmpAdminString FROM SNMP-FRAMEWORK-MIB vacmAccessEntry FROM SNMP-VIEW-BASED-ACM-MIB InterfaceIndexOrZero FROM IF-MIB; docsDev MODULE-IDENTITY LAST-UPDATED "200301240000Z" -- 24 January 2003 ORGANIZATION "IETF IPCDN Working Group" CONTACT-INFO " Rich Woundy Postal: Comcast Cable 27 Industrial Avenue Chelmsford, MA 01824 U.S.A. Phone: +1 978 244 4010 E-mail: richard_woundy@cable.comcast.com IETF IPCDN Working Group General Discussion: ipcdn@ietf.org Subscribe: http://www.ietf.org/mailman/listinfo/ipcdn Archive: ftp://ftp.ietf.org/ietf-mail-archive/ipcdn Co-chairs: Richard Woundy, richard_woundy@cable.comcast.com Jean-Francois Mule, jf.mule@cablelabs.com" DESCRIPTION "This is the MIB Module for DOCSIS compliant cable modems Expires July 2003 [Page 12]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 and cable-modem termination systems. Copyright (C) The Internet Society (2003). This version of this MIB module is part of RFC xxxx; see the RFC itself for full legal notices." REVISION "200301240000Z" -- 24 January 2003 DESCRIPTION "Modified by Rich Woundy to update the handling of the docsDevNmAccessTable with respect to SNMP Coexistence, to simplify the TFTP/HTTP software download mechanisms, to deprecate docsDevEvThrottleInhibited in favor of docsDevEvThrottleThresholdExceeded, to leverage the InetPortNumber syntax, to make the docsDevCpe tables optional, and to fix errors caught by MIB compilers." REVISION "200211030000Z" -- 3 November 2002 DESCRIPTION "Modified by Rich Woundy to enable TFTP and HTTP software downloads through the addition of new objects, to define a new docsDevMaxCpe object, to simplify the operation of docsDevEvThrottleInhibited, to remove direct references to RFCs 2233 and 2851, to fix errors caught by MIB compilers, and to correct miscellaneous DESCRIPTION errors." REVISION "200207010000Z" -- 1 July 2002 DESCRIPTION "Modified by Rich Woundy to add docsDevNmAccessTrapVersion, use 0.0.0.0 to represent any NMS for docsDevNmAccessIp, and fixed references to docsDevIpFilterTable (should be docsDevFilterIpTable) and docsDevFilterIpPolicyTable (should be docsDevFilterPolicyTable). This MIB was NOT checked by a MIB compiler." REVISION "200103020000Z" -- 2 March 2001 DESCRIPTION "Modified by Rich Woundy to use RFC 2851 for IPv6 compliance. Added back two obsoleted objects to ensure OIDs are never re-used. Added the docsDevIgmpModeControl object for IGMP mode control." REVISION "200007070000Z" -- 7 July 2000, 0000Z DESCRIPTION "Modified by Mike StJohns to bring into SNMPv3/IPv6 compliance. Modified to deal with multiple CPE interface devices. Updated compliance statements to current version." REVISION "9908190000Z" DESCRIPTION "Initial version, published as RFC 2669." ::= { mib-2 69 } Expires July 2003 [Page 13]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 docsDevMIBObjects OBJECT IDENTIFIER ::= { docsDev 1 } docsDevBase OBJECT IDENTIFIER ::= { docsDevMIBObjects 1 } -- -- For the following object, there is no concept in the -- RFI specification corresponding to a backup CMTS. The -- enumeration is provided here in case someone is able -- to define such a role or device. -- docsDevRole OBJECT-TYPE SYNTAX INTEGER { cm(1), cmtsActive(2), cmtsBackup(3) } MAX-ACCESS read-only STATUS current DESCRIPTION "Defines the current role of this device. cm (1) is a Cable Modem, cmtsActive(2) is a Cable Modem Termination System which is controlling the system of cable modems, and cmtsBackup(3) is a CMTS which is currently connected, but not controlling the system (not currently used). In general, if this device is a 'cm', its role will not change during operation or between reboots. If the device is a 'cmts' it may change between cmtsActive and cmtsBackup and back again during normal operation. NB: At this time, the DOCSIS standards do not support the concept of a backup CMTS, cmtsBackup is included for completeness." ::= { docsDevBase 1 } docsDevDateTime OBJECT-TYPE SYNTAX DateAndTime MAX-ACCESS read-write STATUS current DESCRIPTION "The current date and time, with optional timezone information. This is set at boot from the time server. If it's impossible to set this from boot, this shall represent elapsed time from boot relative to the standard epoch (e.g. 1 Jan 1970 0000Z). In other words, if this agent has been up for 3 minutes, and has been unable to set this object from the time server, this object will return 1 Jan 1970 0003Z." ::= { docsDevBase 2 } Expires July 2003 [Page 14]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 docsDevResetNow OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-write STATUS current DESCRIPTION "Setting this object to true(1) causes the device to reset. Reading this object always returns false(2)." ::= { docsDevBase 3 } docsDevSerialNumber OBJECT-TYPE SYNTAX SnmpAdminString MAX-ACCESS read-only STATUS current DESCRIPTION "The manufacturer's serial number for this device." ::= { docsDevBase 4 } docsDevSTPControl OBJECT-TYPE SYNTAX INTEGER { stEnabled(1), noStFilterBpdu(2), noStPassBpdu(3) } MAX-ACCESS read-write STATUS current DESCRIPTION "This object controls operation of the spanning tree protocol (as distinguished from transparent bridging). If set to stEnabled(1) then the spanning tree protocol is enabled, subject to bridging constraints. If noStFilterBpdu(2), then spanning tree is not active, and Bridge PDUs received are discarded. If noStPassBpdu(3) then spanning tree is not active and Bridge PDUs are transparently forwarded. Note that a device need not implement all of these options, but that noStFilterBpdu(2) is required." ::= { docsDevBase 5 } docsDevIgmpModeControl OBJECT-TYPE SYNTAX INTEGER { passive(1), active(2) } MAX-ACCESS read-write STATUS current DESCRIPTION "This object controls the IGMP mode of operation for the CM or CMTS. In passive mode, the device forwards Expires July 2003 [Page 15]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 IGMP between interfaces based on knowledge of Multicast Session activity on the subscriber side interface and the rules defined in section 3.3.1 of [RFI1.1]. In active mode, the device terminates at and initiates IGMP through its interfaces based on the knowledge of Multicast Session activity on the subscriber side interface." ::= { docsDevBase 6 } docsDevMaxCpe OBJECT-TYPE SYNTAX Integer32 (0..255) MAX-ACCESS read-only STATUS current DESCRIPTION "The maximum number of CPEs that can be granted access through a CM during a CM epoch. This value is obtained from the CM configuration file and is defined in [RFI1.0]." ::= { docsDevBase 7 } -- -- The following table provides one level of security for access -- to the device by network management stations. -- Note that access is also constrained by the -- community strings and any vendor-specific security. -- docsDevNmAccessTable OBJECT-TYPE SYNTAX SEQUENCE OF DocsDevNmAccessEntry MAX-ACCESS not-accessible STATUS deprecated DESCRIPTION "This table controls access to SNMP objects by network management stations. If the table is empty, access to SNMP objects is unrestricted. This table exists only on SNMPv1 or v2c agents and does not exist on SNMPv3 agents. See the conformance section for details. Specifically, for v3 agents, the appropriate MIBs and security models apply in lieu of this table. This table is deprecated. Instead, use the SNMP coexistence MIBs from RFC2576, the TARGET and NOTIFICATION MIBs from the SNMP Applications RFC, and the VACM MIBs for SNMPv1 and V2C access." ::= { docsDevMIBObjects 2 } docsDevNmAccessEntry OBJECT-TYPE SYNTAX DocsDevNmAccessEntry Expires July 2003 [Page 16]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 MAX-ACCESS not-accessible STATUS deprecated DESCRIPTION "An entry describing access to SNMP objects by a particular network management station. An entry in this table is not readable unless the management station has read-write permission (either implicit if the table is empty, or explicit through an entry in this table. Entries are ordered by docsDevNmAccessIndex. The first matching entry (e.g. matching IP address and community string) is used to derive access." INDEX { docsDevNmAccessIndex } ::= { docsDevNmAccessTable 1 } DocsDevNmAccessEntry ::= SEQUENCE { docsDevNmAccessIndex Integer32, docsDevNmAccessIp IpAddress, docsDevNmAccessIpMask IpAddress, docsDevNmAccessCommunity OCTET STRING, docsDevNmAccessControl INTEGER, docsDevNmAccessInterfaces OCTET STRING, docsDevNmAccessStatus RowStatus, docsDevNmAccessTrapVersion INTEGER } docsDevNmAccessIndex OBJECT-TYPE SYNTAX Integer32 (1..2147483647) MAX-ACCESS not-accessible STATUS deprecated DESCRIPTION "Index used to order the application of access entries." ::= { docsDevNmAccessEntry 1 } docsDevNmAccessIp OBJECT-TYPE SYNTAX IpAddress MAX-ACCESS read-create STATUS deprecated DESCRIPTION "The IP address (or subnet) of the network management station. The address 0.0.0.0 is defined to mean any NMS. If traps are enabled for this entry, then the value must be the address of a specific device." DEFVAL { '00000000'h } ::= { docsDevNmAccessEntry 2 } docsDevNmAccessIpMask OBJECT-TYPE SYNTAX IpAddress Expires July 2003 [Page 17]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 MAX-ACCESS read-create STATUS deprecated DESCRIPTION "The IP subnet mask of the network management stations. If traps are enabled for this entry, then the value must be 255.255.255.255." DEFVAL { '00000000'h } ::= { docsDevNmAccessEntry 3 } docsDevNmAccessCommunity OBJECT-TYPE SYNTAX OCTET STRING (SIZE (0..32)) MAX-ACCESS read-create STATUS deprecated DESCRIPTION "The community string to be matched for access by this entry. If set to a zero length string then any community string will match. When read, this object SHOULD return a zero length string." DEFVAL { "public" } ::= { docsDevNmAccessEntry 4 } docsDevNmAccessControl OBJECT-TYPE SYNTAX INTEGER { none(1), read(2), readWrite(3), roWithTraps(4), rwWithTraps(5), trapsOnly(6) } MAX-ACCESS read-create STATUS deprecated DESCRIPTION "Specifies the type of access allowed to this NMS. Setting this object to none(1) causes the table entry to be destroyed. Read(2) allows access by 'get' and 'get-next' PDUs. ReadWrite(3) allows access by 'set' as well. RoWithtraps(4), rwWithTraps(5), and trapsOnly(6) control distribution of Trap PDUs transmitted by this device." DEFVAL { read } ::= { docsDevNmAccessEntry 5 } -- The syntax of the following object was copied from RFC1493, -- dot1dStaticAllowedToGoTo. docsDevNmAccessInterfaces OBJECT-TYPE SYNTAX OCTET STRING (SIZE (1..32)) Expires July 2003 [Page 18]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 MAX-ACCESS read-create STATUS deprecated DESCRIPTION "Specifies the set of interfaces from which requests from this NMS will be accepted. Each octet within the value of this object specifies a set of eight interfaces, with the first octet specifying ports 1 through 8, the second octet specifying interfaces 9 through 16, etc. Within each octet, the most significant bit represents the lowest numbered interface, and the least significant bit represents the highest numbered interface. Thus, each interface is represented by a single bit within the value of this object. If that bit has a value of '1' then that interface is included in the set. Note that entries in this table apply only to link-layer interfaces (e.g., Ethernet and CATV MAC). Upstream and downstream channel interfaces must not be specified. Note that according to the DOCSIS OSSIv1.1 specification [OSSI1.1], when ifIndex '1' is included in the set, then this row applies to all CPE (customer-facing) interfaces. The size of this object is the minimum required to represent all configured interfaces for this device." -- DEFVAL is the bitmask corresponding to all interfaces ::= { docsDevNmAccessEntry 6 } docsDevNmAccessStatus OBJECT-TYPE SYNTAX RowStatus MAX-ACCESS read-create STATUS deprecated DESCRIPTION "Controls and reflects the status of rows in this table. Rows in this table may be created by either the create-and-go or create-and-wait paradigms. There is no restriction on changing values in a row of this table while the row is active." ::= { docsDevNmAccessEntry 7 } docsDevNmAccessTrapVersion OBJECT-TYPE SYNTAX INTEGER { disableSNMPv2trap(1), enableSNMPv2trap(2) } MAX-ACCESS read-create STATUS deprecated DESCRIPTION Expires July 2003 [Page 19]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 "Specifies the TRAP version that is sent to this NMS. Setting this object to disableSNMPv2trap (1) causes the trap in SNMPv1 format to be sent to particular NMS. Setting this object to enableSNMPv2trap (2) causes the trap in SNMPv2 format be sent to particular NMS." DEFVAL { disableSNMPv2trap } ::= { docsDevNmAccessEntry 8 } -- -- Procedures for using the following group are described in section -- 3.2.1 of this MIB -- docsDevSoftware OBJECT IDENTIFIER ::= { docsDevMIBObjects 3 } docsDevSwServer OBJECT-TYPE SYNTAX IpAddress MAX-ACCESS read-write STATUS deprecated DESCRIPTION "The address of the TFTP server used for software upgrades. If the TFTP server is unknown or is a V6 address, return 0.0.0.0. This object is deprecated. See docsDevSwServerAddress for its replacement. This object will have its value modified given a valid SET to docsDevSwServerAddress." ::= { docsDevSoftware 1 } docsDevSwFilename OBJECT-TYPE SYNTAX SnmpAdminString (SIZE (0..64)) MAX-ACCESS read-write STATUS current DESCRIPTION "The filename of the software image to be downloaded via TFTP, or the abs_path (as defined in [RFC2616]) of the software image to be downloaded via HTTP. Unless set via SNMP, this is the filename or abs_path specified by the provisioning server during the boot process, that corresponds to the software version that is desired for this device. If unknown, the value of this object is the empty string." ::= { docsDevSoftware 2 } docsDevSwAdminStatus OBJECT-TYPE Expires July 2003 [Page 20]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 SYNTAX INTEGER { upgradeFromMgt(1), allowProvisioningUpgrade(2), ignoreProvisioningUpgrade(3) } MAX-ACCESS read-write STATUS current DESCRIPTION "If set to upgradeFromMgt(1), the device will initiate a TFTP or HTTP software image download. After successfully receiving an image, the device will set its state to ignoreProvisioningUpgrade(3) and reboot. If the download process is interrupted by a reset or power failure, the device will load the previous image and, after re-initialization, continue to attempt loading the image specified in docsDevSwFilename. If set to allowProvisioningUpgrade(2), the device will use the software version information supplied by the provisioning server when next rebooting (this does not cause a reboot). When set to ignoreProvisioningUpgrade(3), the device will disregard software image upgrade information from the provisioning server. Note that reading this object can return upgradeFromMgt(1). This indicates that a software download is currently in progress, and that the device will reboot after successfully receiving an image. At initial startup, this object has the default value of allowProvisioningUpgrade(2)." ::= { docsDevSoftware 3 } docsDevSwOperStatus OBJECT-TYPE SYNTAX INTEGER { inProgress(1), completeFromProvisioning(2), completeFromMgt(3), failed(4), other(5) } MAX-ACCESS read-only STATUS current DESCRIPTION "InProgress(1) indicates that a TFTP or HTTP download is underway, either as a result of a version mismatch at Expires July 2003 [Page 21]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 provisioning or as a result of a upgradeFromMgt request. CompleteFromProvisioning(2) indicates that the last software upgrade was a result of version mismatch at provisioning. CompleteFromMgt(3) indicates that the last software upgrade was a result of setting docsDevSwAdminStatus to upgradeFromMgt. Failed(4) indicates that the last attempted download failed, ordinarily due to TFTP or HTTP timeout." REFERENCE "DOCSIS Radio Frequency Interface Specification, Section 8.2, Downloading Cable Modem Operating Software." ::= { docsDevSoftware 4 } docsDevSwCurrentVers OBJECT-TYPE SYNTAX SnmpAdminString MAX-ACCESS read-only STATUS current DESCRIPTION "The software version currently operating in this device. This object should be in the syntax used by the individual vendor to identify software versions. Any CM MUST return a string descriptive of the current software load. For a CMTS, this object SHOULD contain either a human readable representation of the vendor specific designation of the software for the chassis, or of the software for the control processor. If neither of these is applicable, this MUST contain an empty string." ::= { docsDevSoftware 5 } docsDevSwServerAddressType OBJECT-TYPE SYNTAX InetAddressType MAX-ACCESS read-write STATUS current DESCRIPTION "The type of address of the TFTP or HTTP server used for software upgrades. If the TFTP protocol is used, then the value of this object MUST NOT be the 'dns' address type." ::= { docsDevSoftware 6 } docsDevSwServerAddress OBJECT-TYPE SYNTAX InetAddress MAX-ACCESS read-write STATUS current DESCRIPTION "The address of the TFTP or HTTP server used for software upgrades. Expires July 2003 [Page 22]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 If the TFTP/HTTP server is unknown, return the zero length address string (see the TextualConvention). If docsDevSwServer is also implemented in this agent, this object is tied to it. A set of this object to an IPv4 address will result in the value of docsDevSwServer also being set to that address. If this object is set to an IPv6 address, docsDevSwServer is set to 0.0.0.0. If docsDevSwServer is set, this object is also set to that value. Note that if both are set in the same action, the order of which one sets the other is undefined." ::= { docsDevSoftware 7 } docsDevSwServerTransportProtocol OBJECT-TYPE SYNTAX INTEGER { tftp(1), http(2) } MAX-ACCESS read-write STATUS current DESCRIPTION "This object specifies the transport protocol (TFTP or HTTP) to be used for software upgrades. If the value of this object is tftp, then the cable device uses TFTP [RFC1350] read request packets to download the docsDevSwFilename from the docsDevSwServerAddress in octet mode. If the value of this object is http, then the cable device uses HTTP 1.0 [RFC1945] or HTTP 1.1 [RFC2616] GET requests sent to host docsDevSwServerAddress to download the software image from path docsDevSwFilename. The default value of this object is tftp." ::= { docsDevSoftware 8 } -- -- The following group describes server access and parameters used for -- initial provisioning and bootstrapping. -- docsDevServer OBJECT IDENTIFIER ::= { docsDevMIBObjects 4 } docsDevServerBootState OBJECT-TYPE SYNTAX INTEGER { operational(1), disabled(2), Expires July 2003 [Page 23]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 waitingForDhcpOffer(3), waitingForDhcpResponse(4), waitingForTimeServer(5), waitingForTftp(6), refusedByCmts(7), forwardingDenied(8), other(9), unknown(10) } MAX-ACCESS read-only STATUS current DESCRIPTION "If operational(1), the device has completed loading and processing of configuration parameters and the CMTS has completed the Registration exchange. If disabled(2) then the device was administratively disabled, possibly by being refused network access in the configuration file. If waitingForDhcpOffer(3) then a DHCP Discover has been transmitted and no offer has yet been received. If waitingForDhcpResponse(4) then a DHCP Request has been transmitted and no response has yet been received. If waitingForTimeServer(5) then a Time Request has been transmitted and no response has yet been received. If waitingForTftp(6) then a request to the TFTP parameter server has been made and no response received. If refusedByCmts(7) then the Registration Request/Response exchange with the CMTS failed. If forwardingDenied(8) then the registration process completed, but the network access option in the received configuration file prohibits forwarding. " REFERENCE "DOCSIS Radio Frequency Interface Specification, Figure 7-1, CM Initialization Overview." ::= { docsDevServer 1 } docsDevServerDhcp OBJECT-TYPE SYNTAX IpAddress MAX-ACCESS read-only STATUS deprecated DESCRIPTION "The IP address of the DHCP server that assigned an IP address to this device. Returns 0.0.0.0 if DHCP is not used for IP address assignment, or if this agent is assigned an IPv6 address. Deprecated. This object is replaced by docsDevServerDhcpAddress." Expires July 2003 [Page 24]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 ::= { docsDevServer 2 } docsDevServerTime OBJECT-TYPE SYNTAX IpAddress MAX-ACCESS read-only STATUS deprecated DESCRIPTION "The IP address of the Time server (RFC-868). Returns 0.0.0.0 if the time server IP address is unknown, or if the time server is an IPv6 server. Deprecated. This object is replaced by docsDevServerTimeAddress." ::= { docsDevServer 3 } docsDevServerTftp OBJECT-TYPE SYNTAX IpAddress MAX-ACCESS read-only STATUS deprecated DESCRIPTION "The IP address of the TFTP server responsible for downloading provisioning and configuration parameters to this device. Returns 0.0.0.0 if the TFTP server address is unknown or is an IPv6 address. Deprecated. This object is replaced by docsDevServerConfigTftpAddress." ::= { docsDevServer 4 } docsDevServerConfigFile OBJECT-TYPE SYNTAX SnmpAdminString MAX-ACCESS read-only STATUS current DESCRIPTION "The name of the device configuration file read from the TFTP server. Returns an empty string if the configuration file name is unknown." ::= { docsDevServer 5 } docsDevServerDhcpAddressType OBJECT-TYPE SYNTAX InetAddressType MAX-ACCESS read-only STATUS current DESCRIPTION "The type of address of docsDevServerDhcpAddress." ::= { docsDevServer 6 } docsDevServerDhcpAddress OBJECT-TYPE Expires July 2003 [Page 25]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 SYNTAX InetAddress MAX-ACCESS read-only STATUS current DESCRIPTION "The IP v4 or v6 address of the DHCP server that assigned an IP address to this device. Returns the zero length octet string if DHCP was not used for IP address assignment." ::= { docsDevServer 7 } docsDevServerTimeAddressType OBJECT-TYPE SYNTAX InetAddressType MAX-ACCESS read-only STATUS current DESCRIPTION "The type of address of docsDevServerTimeAddress." ::= { docsDevServer 8 } docsDevServerTimeAddress OBJECT-TYPE SYNTAX InetAddress MAX-ACCESS read-only STATUS current DESCRIPTION "The IP V4 or V6 address of the RFC-868 Time server. Returns the zero length octet string if the time server IP address is unknown." ::= { docsDevServer 9 } docsDevServerConfigTftpAddressType OBJECT-TYPE SYNTAX InetAddressType MAX-ACCESS read-only STATUS current DESCRIPTION "The type of address of docsDevServerConfigTftpAddress." ::= { docsDevServer 10 } docsDevServerConfigTftpAddress OBJECT-TYPE SYNTAX InetAddress MAX-ACCESS read-only STATUS current DESCRIPTION "The IP V4 or V6 address of the TFTP server responsible for downloading provisioning and configuration parameters to this device. Returns the zero length octet string if the config server address is unknown." ::= { docsDevServer 11 } -- Expires July 2003 [Page 26]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 -- Event Reporting -- docsDevEvent OBJECT IDENTIFIER ::= { docsDevMIBObjects 5 } docsDevEvControl OBJECT-TYPE SYNTAX INTEGER { resetLog(1), useDefaultReporting(2) } MAX-ACCESS read-write STATUS current DESCRIPTION "Setting this object to resetLog(1) empties the event log. All data is deleted. Setting it to useDefaultReporting(2) returns all event priorities to their factory-default reporting. Reading this object always returns useDefaultReporting(2)." ::= { docsDevEvent 1 } docsDevEvSyslog OBJECT-TYPE SYNTAX IpAddress MAX-ACCESS read-write STATUS deprecated DESCRIPTION "The IP address of the Syslog server. If 0.0.0.0, either syslog transmission is inhibited, or the Syslog server address is an IPv6 address. Deprecated. See docsDevEvSyslogAddress." ::= { docsDevEvent 2 } docsDevEvThrottleAdminStatus OBJECT-TYPE SYNTAX INTEGER { unconstrained(1), maintainBelowThreshold(2), stopAtThreshold(3), inhibited(4) } MAX-ACCESS read-write STATUS current DESCRIPTION "Controls the transmission of traps and syslog messages with respect to the trap pacing threshold. unconstrained(1) causes traps and syslog messages to be transmitted without regard to the threshold settings. maintainBelowThreshold(2) causes trap transmission and syslog messages to be suppressed if the number of traps Expires July 2003 [Page 27]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 would otherwise exceed the threshold. stopAtThreshold(3) causes trap transmission to cease at the threshold, and not resume until directed to do so. inhibited(4) causes all trap transmission and syslog messages to be suppressed. A single event is always treated as a single event for threshold counting. That is, an event causing both a trap and a syslog message is still treated as a single event. Writing to this object resets the thresholding state. At initial startup, this object has a default value of unconstrained(1)." ::= { docsDevEvent 3 } docsDevEvThrottleInhibited OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-only STATUS deprecated DESCRIPTION "If true(1), trap and syslog transmission is currently inhibited due to thresholds and/or the current setting of docsDevEvThrottleAdminStatus. In addition, this is set to true(1) if transmission is inhibited due to no syslog (docsDevEvSyslog) or trap (docsDevNmAccessEntry) destinations having been set. Deprecated. See docsDevEvThrottleThresholdExceeded." ::= { docsDevEvent 4 } docsDevEvThrottleThreshold OBJECT-TYPE SYNTAX Unsigned32 MAX-ACCESS read-write STATUS current DESCRIPTION "Number of trap/syslog events per docsDevEvThrottleInterval to be transmitted before throttling. A single event is always treated as a single event for threshold counting. That is, an event causing both a trap and a syslog message is still treated as a single event. At initial startup, this object returns 0." ::= { docsDevEvent 5 } docsDevEvThrottleInterval OBJECT-TYPE SYNTAX Integer32 (1..2147483647) Expires July 2003 [Page 28]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 UNITS "seconds" MAX-ACCESS read-write STATUS current DESCRIPTION "The interval over which the trap threshold applies. At initial startup, this object has a value of 1." ::= { docsDevEvent 6 } -- -- The following table controls the reporting of the various classes of -- events. -- docsDevEvControlTable OBJECT-TYPE SYNTAX SEQUENCE OF DocsDevEvControlEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "This table allows control of the reporting of event classes. For each event priority, a combination of logging and reporting mechanisms may be chosen. The mapping of event types to priorities is vendor-dependent. Vendors may also choose to allow the user to control that mapping through proprietary means." ::= { docsDevEvent 7 } docsDevEvControlEntry OBJECT-TYPE SYNTAX DocsDevEvControlEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Allows configuration of the reporting mechanisms for a particular event priority." INDEX { docsDevEvPriority } ::= { docsDevEvControlTable 1 } DocsDevEvControlEntry ::= SEQUENCE { docsDevEvPriority INTEGER, docsDevEvReporting BITS } docsDevEvPriority OBJECT-TYPE SYNTAX INTEGER { emergency(1), alert(2), critical(3), error(4), Expires July 2003 [Page 29]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 warning(5), notice(6), information(7), debug(8) } MAX-ACCESS not-accessible STATUS current DESCRIPTION "The priority level that is controlled by this entry. These are ordered from most (emergency) to least (debug) critical. Each event with a CM or CMTS has a particular priority level associated with it (as defined by the vendor). During normal operation no event more critical than notice(6) should be generated. Events between warning and emergency should be generated at appropriate levels of problems (e.g. emergency when the box is about to crash)." ::= { docsDevEvControlEntry 1 } docsDevEvReporting OBJECT-TYPE SYNTAX BITS { localNonvolatile(0), traps(1), syslog(2), localVolatile(3) } MAX-ACCESS read-write STATUS current DESCRIPTION "Defines the action to be taken on occurrence of this event class. Implementations may not necessarily support all options for all event classes, but at minimum must allow traps and syslogging to be disabled. If the localNonvolatile(0) bit is set, then log to the internal log -- both the volatile and non-volatile versions, for backward compatibility with the object definition from RFC 2669. If the traps(1) bit is set, then generate an SNMP trap, and if the syslog(2) bit is set, then send a syslog message (assuming the syslog address is set). If the localVolatile(3) bit is set, then log to the internal volatile log. An event reported by trap or syslog logging MUST be accompanied by localVolatile logging. If the bit value for either traps(1) or syslog(2) is set, then the agent MUST enforce that the bit value for localNonvolatile(0) or localVolatile(3) is set as well." ::= { docsDevEvControlEntry 2 } Expires July 2003 [Page 30]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 docsDevEventTable OBJECT-TYPE SYNTAX SEQUENCE OF DocsDevEventEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Contains a log of network and device events that may be of interest in fault isolation and troubleshooting." ::= { docsDevEvent 8 } docsDevEventEntry OBJECT-TYPE SYNTAX DocsDevEventEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Describes a network or device event that may be of interest in fault isolation and troubleshooting. Multiple sequential identical events are represented by incrementing docsDevEvCounts and setting docsDevEvLastTime to the current time rather than creating multiple rows. Entries are created with the first occurrance of an event. docsDevEvControl can be used to clear the table. Individual events can not be deleted." INDEX { docsDevEvIndex } ::= { docsDevEventTable 1 } DocsDevEventEntry ::= SEQUENCE { docsDevEvIndex Integer32, docsDevEvFirstTime DateAndTime, docsDevEvLastTime DateAndTime, docsDevEvCounts Counter32, docsDevEvLevel INTEGER, docsDevEvId Unsigned32, docsDevEvText SnmpAdminString } docsDevEvIndex OBJECT-TYPE SYNTAX Integer32 (1..2147483647) MAX-ACCESS not-accessible STATUS current DESCRIPTION "Provides relative ordering of the objects in the event log. This object will always increase except when (a) the log is reset via docsDevEvControl, (b) the device reboots and does not implement non-volatile storage for this log, or (c) it reaches the value 2^31. The next entry for all the above cases is 1." Expires July 2003 [Page 31]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 ::= { docsDevEventEntry 1 } docsDevEvFirstTime OBJECT-TYPE SYNTAX DateAndTime MAX-ACCESS read-only STATUS current DESCRIPTION "The value of docsDevDateTime at the time this entry was created." ::= { docsDevEventEntry 2 } docsDevEvLastTime OBJECT-TYPE SYNTAX DateAndTime MAX-ACCESS read-only STATUS current DESCRIPTION "If multiple events are reported via the same entry, the value of docsDevDateTime that the last event for this entry occurred, otherwise this should have the same value as docsDevEvFirstTime. " ::= { docsDevEventEntry 3 } docsDevEvCounts OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of consecutive event instances reported by this entry. This starts at 1 with the creation of this row and increments by 1 for each subsequent duplicate event." ::= { docsDevEventEntry 4 } docsDevEvLevel OBJECT-TYPE SYNTAX INTEGER { emergency(1), alert(2), critical(3), error(4), warning(5), notice(6), information(7), debug(8) } MAX-ACCESS read-only STATUS current DESCRIPTION "The priority level of this event as defined by the Expires July 2003 [Page 32]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 vendor. These are ordered from most serious (emergency) to least serious (debug)." ::= { docsDevEventEntry 5 } -- -- It is strongly recommended that implementors follow the CableLabs -- enumerations for docsDevEvId, as defined in Appendix F of [OSSI1.1]. -- docsDevEvId OBJECT-TYPE SYNTAX Unsigned32 MAX-ACCESS read-only STATUS current DESCRIPTION "For this product, uniquely identifies the type of event that is reported by this entry." ::= { docsDevEventEntry 6 } docsDevEvText OBJECT-TYPE SYNTAX SnmpAdminString MAX-ACCESS read-only STATUS current DESCRIPTION "Provides a human-readable description of the event, including all relevant context (interface numbers, etc.)." ::= { docsDevEventEntry 7 } docsDevEvSyslogAddressType OBJECT-TYPE SYNTAX InetAddressType MAX-ACCESS read-write STATUS current DESCRIPTION "The type of address of docsDevEvSyslogAddress." ::= { docsDevEvent 9 } docsDevEvSyslogAddress OBJECT-TYPE SYNTAX InetAddress MAX-ACCESS read-write STATUS current DESCRIPTION "The IP V4 or V6 address of the Syslog server. If the address of the server is set to any of the zero length string, the 0.0.0.0 V4 address or the 0: V6 address, syslog transmission is inhibited. By default at agent boot, this object returns the zero length string." ::= { docsDevEvent 10 } Expires July 2003 [Page 33]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 docsDevEvThrottleThresholdExceeded OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-only STATUS current DESCRIPTION "If true(1), trap and syslog transmission is currently inhibited due to exceeding the trap/syslog event threshold in the current interval." ::= { docsDevEvent 11 } -- -- Link Level Control Filtering -- docsDevFilter OBJECT IDENTIFIER ::= { docsDevMIBObjects 6 } docsDevFilterLLCUnmatchedAction OBJECT-TYPE SYNTAX INTEGER { discard(1), accept(2) } MAX-ACCESS read-write STATUS current DESCRIPTION "LLC (Link Level Control) filters can be defined on an inclusive or exclusive basis: CMs can be configured to forward only packets matching a set of layer three protocols, or to drop packets matching a set of layer three protocols. Typical use of these filters is to filter out possibly harmful (given the context of a large metropolitan LAN) protocols. If set to discard(1), any L2 packet which does not match at least one filter in the docsDevFilterLLCTable will be discarded. If set to accept(2), any L2 packet which does not match at least one filter in the docsDevFilterLLCTable will be accepted for further processing (e.g., bridging). In otherwords, if the packet does not match an entry in the table it takes this action, if it does match an entry in the table it takes the opposite of this action. At initial system startup, this object returns accept(2)." ::= { docsDevFilter 1 } docsDevFilterLLCTable OBJECT-TYPE SYNTAX SEQUENCE OF DocsDevFilterLLCEntry MAX-ACCESS not-accessible STATUS current Expires July 2003 [Page 34]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 DESCRIPTION "A list of filters to apply to (bridged) LLC traffic. The filters in this table are applied to incoming traffic on the appropriate interface(s) prior to any further processing (e.g. before handing the packet off for level 3 processing, or for bridging). The specific action taken when no filter is matched is controlled by docsDevFilterLLCUnmatchedAction." ::= { docsDevFilter 2 } docsDevFilterLLCEntry OBJECT-TYPE SYNTAX DocsDevFilterLLCEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Describes a single filter to apply to (bridged) LLC traffic received on a specified interface. " INDEX { docsDevFilterLLCIndex } ::= { docsDevFilterLLCTable 1 } DocsDevFilterLLCEntry ::= SEQUENCE { docsDevFilterLLCIndex Integer32, docsDevFilterLLCStatus RowStatus, docsDevFilterLLCIfIndex InterfaceIndexOrZero, docsDevFilterLLCProtocolType INTEGER, docsDevFilterLLCProtocol Integer32, docsDevFilterLLCMatches Counter32 } docsDevFilterLLCIndex OBJECT-TYPE SYNTAX Integer32 (1..2147483647) MAX-ACCESS not-accessible STATUS current DESCRIPTION "Index used for the identification of filters (note that LLC filter order is irrelevant)." ::= { docsDevFilterLLCEntry 1 } docsDevFilterLLCStatus OBJECT-TYPE SYNTAX RowStatus MAX-ACCESS read-create STATUS current DESCRIPTION "Controls and reflects the status of rows in this table. There is no restriction on changing any of the associated columns for this row while this object is set to active." ::= { docsDevFilterLLCEntry 2} Expires July 2003 [Page 35]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 docsDevFilterLLCIfIndex OBJECT-TYPE SYNTAX InterfaceIndexOrZero MAX-ACCESS read-create STATUS current DESCRIPTION "The entry interface to which this filter applies. The value corresponds to ifIndex for either a CATV MAC or another network interface. If the value is zero, the filter applies to all interfaces. In Cable Modems, the default value is the customer side interface(s). In Cable Modem Termination Systems, this object has to be specified to create a row in this table. Note that according to the DOCSIS OSSIv1.1 specification [OSSI1.1], ifIndex '1' means that this row applies to all CPE (customer-facing) interfaces." ::= { docsDevFilterLLCEntry 3 } docsDevFilterLLCProtocolType OBJECT-TYPE SYNTAX INTEGER { ethertype(1), dsap(2) } MAX-ACCESS read-create STATUS current DESCRIPTION "The format of the value in docsDevFilterLLCProtocol: either a two-byte Ethernet Ethertype, or a one-byte 802.2 SAP value. EtherType(1) also applies to SNAP- encapsulated frames." DEFVAL { ethertype } ::= { docsDevFilterLLCEntry 4 } docsDevFilterLLCProtocol OBJECT-TYPE SYNTAX Integer32 (0..65535) MAX-ACCESS read-create STATUS current DESCRIPTION "The layer three protocol for which this filter applies. The protocol value format depends on docsDevFilterLLCProtocolType. Note that for SNAP frames, etherType filtering is performed rather than DSAP=0xAA." DEFVAL { 0 } ::= { docsDevFilterLLCEntry 5 } docsDevFilterLLCMatches OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only Expires July 2003 [Page 36]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 STATUS current DESCRIPTION "Counts the number of times this filter was matched." ::= { docsDevFilterLLCEntry 6 } docsDevFilterIpDefault OBJECT-TYPE SYNTAX INTEGER { discard(1), accept(2) } MAX-ACCESS read-write STATUS current DESCRIPTION "The default behavior for (bridged) packets that do not match IP filters is defined by docsDevFilterIpDefault. If set to discard(1), all packets not matching an IP filter will be discarded. If set to accept(2), all packets not matching an IP filter will be accepted for further processing (e.g., bridging). At initial system startup, this object returns accept(2)." ::= { docsDevFilter 3 } docsDevFilterIpTable OBJECT-TYPE SYNTAX SEQUENCE OF DocsDevFilterIpEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An ordered list of filters or classifiers to apply to IP traffic. Filter application is ordered by the filter index, rather than by a best match algorithm (Note that this implies that the filter table may have gaps in the index values). Packets which match no filters will have policy 0 in the docsDevFilterPolicyTable applied to them if it exists. Otherwise, Packets which match no filters are discarded or forwarded according to the setting of docsDevFilterIpDefault. Any IP packet can theoretically match multiple rows of this table. When considering a packet, the table is scanned in row index order (e.g. filter 10 is checked before filter 20). If the packet matches that filter (which means that it matches ALL criteria for that row), actions appropriate to docsDevFilterIpControl and docsDevFilterPolicyId are taken. If the packet was discarded processing is complete. If docsDevFilterIpContinue is set to true, the filter Expires July 2003 [Page 37]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 comparison continues with the next row in the table looking for additional matches. If the packet matches no filter in the table, the packet is accepted or dropped for further processing based on the setting of docsDevFilterIpDefault. If the packet is accepted, the actions specified by policy group 0 (e.g. the rows in docsDevFilterPolicyTable which have a value of 0 for docsDevFilterPolicyId) are taken if that policy group exists. Logically, this table is consulted twice during the processing of any IP packet - once upon its acceptance from the L2 entity, and once upon its transmission to the L2 entity. In actuality, for cable modems, IP filtering is generally the only IP processing done for transit traffic. This means that inbound and outbound filtering can generally be done at the same time with one pass through the filter table." ::= { docsDevFilter 4 } docsDevFilterIpEntry OBJECT-TYPE SYNTAX DocsDevFilterIpEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Describes a filter to apply to IP traffic received on a specified interface. All identity objects in this table (e.g. source and destination address/mask, protocol, source/dest port, TOS/mask, interface and direction) must match their respective fields in the packet for any given filter to match. To create an entry in this table, docsDevFilterIpIfIndex must be specified." INDEX { docsDevFilterIpIndex } ::= { docsDevFilterIpTable 1 } DocsDevFilterIpEntry ::= SEQUENCE { docsDevFilterIpIndex Integer32, docsDevFilterIpStatus RowStatus, docsDevFilterIpControl INTEGER, docsDevFilterIpIfIndex InterfaceIndexOrZero, docsDevFilterIpDirection INTEGER, docsDevFilterIpBroadcast TruthValue, docsDevFilterIpSaddr IpAddress, docsDevFilterIpSmask IpAddress, docsDevFilterIpDaddr IpAddress, Expires July 2003 [Page 38]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 docsDevFilterIpDmask IpAddress, docsDevFilterIpProtocol Integer32, docsDevFilterIpSourcePortLow InetPortNumber, docsDevFilterIpSourcePortHigh InetPortNumber, docsDevFilterIpDestPortLow InetPortNumber, docsDevFilterIpDestPortHigh InetPortNumber, docsDevFilterIpMatches Counter32, docsDevFilterIpTos OCTET STRING, docsDevFilterIpTosMask OCTET STRING, docsDevFilterIpContinue TruthValue, docsDevFilterIpPolicyId Integer32 } docsDevFilterIpIndex OBJECT-TYPE SYNTAX Integer32 (1..2147483647) MAX-ACCESS not-accessible STATUS current DESCRIPTION "Index used to order the application of filters. The filter with the lowest index is always applied first." ::= { docsDevFilterIpEntry 1 } docsDevFilterIpStatus OBJECT-TYPE SYNTAX RowStatus MAX-ACCESS read-create STATUS current DESCRIPTION "Controls and reflects the status of rows in this table. Specifying only this object (with the appropriate index) on a CM is sufficient to create a filter row which matches all inbound packets on the ethernet interface, and results in the packets being discarded. docsDevFilterIpIfIndex (at least) must be specified on a CMTS to create a row. Creation of the rows may be done via either create-and-wait or create-and-go, but the filter is not applied until this object is set to (or changes to) active. There is no restriction in changing any object in a row while this object is set to active." ::= { docsDevFilterIpEntry 2 } docsDevFilterIpControl OBJECT-TYPE SYNTAX INTEGER { discard(1), accept(2), policy(3) } Expires July 2003 [Page 39]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 MAX-ACCESS read-create STATUS current DESCRIPTION "If set to discard(1), all packets matching this filter will be discarded and scanning of the remainder of the filter list will be aborted. If set to accept(2), all packets matching this filter will be accepted for further processing (e.g., bridging). If docsDevFilterIpContinue is set to true, see if there are other matches, otherwise done. If set to policy (3), execute the policy entries matched by docsDevFilterIpPolicyId in docsDevFilterPolicyTable. If is docsDevFilterIpContinue is set to true, continue scanning the table for other matches, otherwise done." DEFVAL { discard } ::= { docsDevFilterIpEntry 3 } docsDevFilterIpIfIndex OBJECT-TYPE SYNTAX InterfaceIndexOrZero MAX-ACCESS read-create STATUS current DESCRIPTION "The entry interface to which this filter applies. The value corresponds to ifIndex for either a CATV MAC or another interface. If the value is zero, the filter applies to all interfaces. Default value in Cable Modems is the index of the customer-side (e.g. ethernet) interface(s). In Cable Modem Termination Systems, this object MUST be specified to create a row in this table. Note that according to the DOCSIS OSSIv1.1 specification [OSSI1.1], ifIndex '1' means that this row applies to all CPE (customer-facing) interfaces." ::= { docsDevFilterIpEntry 4 } docsDevFilterIpDirection OBJECT-TYPE SYNTAX INTEGER { inbound(1), outbound(2), both(3) } MAX-ACCESS read-create STATUS current DESCRIPTION "Determines whether the filter is applied to inbound(1) traffic, outbound(2) traffic, or traffic in both(3) directions." Expires July 2003 [Page 40]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 DEFVAL { inbound } ::= { docsDevFilterIpEntry 5 } docsDevFilterIpBroadcast OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-create STATUS current DESCRIPTION "If set to true(1), the filter only applies to multicast and broadcast traffic. If set to false(2), the filter applies to all traffic." DEFVAL { false } ::= { docsDevFilterIpEntry 6 } docsDevFilterIpSaddr OBJECT-TYPE SYNTAX IpAddress MAX-ACCESS read-create STATUS current DESCRIPTION "The source IP address, or portion thereof, that is to be matched for this filter. The source address is first masked (and'ed) against docsDevFilterIpSmask before being compared to this value. A value of 0 for this object and 0 for the mask matches all IP addresses." DEFVAL { '00000000'h } ::= { docsDevFilterIpEntry 7 } docsDevFilterIpSmask OBJECT-TYPE SYNTAX IpAddress MAX-ACCESS read-create STATUS current DESCRIPTION "A bit mask that is to be applied to the source address prior to matching. This mask is not necessarily the same as a subnet mask, but 1's bits must be leftmost and contiguous." DEFVAL { '00000000'h } ::= { docsDevFilterIpEntry 8 } docsDevFilterIpDaddr OBJECT-TYPE SYNTAX IpAddress MAX-ACCESS read-create STATUS current DESCRIPTION "The destination IP address, or portion thereof, that is to be matched for this filter. The destination address is first masked (and'ed) against docsDevFilterIpDmask before being compared to this value. A value of 0 for this object Expires July 2003 [Page 41]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 and 0 for the mask matches all IP addresses." DEFVAL { '00000000'h } ::= { docsDevFilterIpEntry 9 } docsDevFilterIpDmask OBJECT-TYPE SYNTAX IpAddress MAX-ACCESS read-create STATUS current DESCRIPTION "A bit mask that is to be applied to the destination address prior to matching. This mask is not necessarily the same as a subnet mask, but 1's bits must be leftmost and contiguous." DEFVAL { '00000000'h } ::= { docsDevFilterIpEntry 10 } docsDevFilterIpProtocol OBJECT-TYPE SYNTAX Integer32 (0..256) MAX-ACCESS read-create STATUS current DESCRIPTION "The IP protocol value that is to be matched. For example: icmp is 1, tcp is 6, udp is 17. A value of 256 matches ANY protocol." DEFVAL { 256 } ::= { docsDevFilterIpEntry 11 } docsDevFilterIpSourcePortLow OBJECT-TYPE SYNTAX InetPortNumber MAX-ACCESS read-create STATUS current DESCRIPTION "This is the inclusive lower bound of the transport-layer source port range that is to be matched. If the IP protocol of the packet is neither UDP nor TCP, this object is ignored during matching." DEFVAL { 0 } ::= { docsDevFilterIpEntry 12 } docsDevFilterIpSourcePortHigh OBJECT-TYPE SYNTAX InetPortNumber MAX-ACCESS read-create STATUS current DESCRIPTION "This is the inclusive upper bound of the transport-layer source port range that is to be matched. If the IP protocol of the packet is neither UDP nor TCP, this object is ignored during matching." Expires July 2003 [Page 42]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 DEFVAL { 65535 } ::= { docsDevFilterIpEntry 13 } docsDevFilterIpDestPortLow OBJECT-TYPE SYNTAX InetPortNumber MAX-ACCESS read-create STATUS current DESCRIPTION "This is the inclusive lower bound of the transport-layer destination port range that is to be matched. If the IP protocol of the packet is neither UDP nor TCP, this object is ignored during matching." DEFVAL { 0 } ::= { docsDevFilterIpEntry 14 } docsDevFilterIpDestPortHigh OBJECT-TYPE SYNTAX InetPortNumber MAX-ACCESS read-create STATUS current DESCRIPTION "This is the inclusive upper bound of the transport-layer destination port range that is to be matched. If the IP protocol of the packet is neither UDP nor TCP, this object is ignored during matching." DEFVAL { 65535 } ::= { docsDevFilterIpEntry 15 } docsDevFilterIpMatches OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Counts the number of times this filter was matched. This object is initialized to 0 at boot, or at row creation, and is reset only upon reboot." ::= { docsDevFilterIpEntry 16 } docsDevFilterIpTos OBJECT-TYPE SYNTAX OCTET STRING ( SIZE (1)) MAX-ACCESS read-create STATUS current DESCRIPTION "This is the value to be matched to the packet's TOS (Type of Service) value (after the TOS value is AND'd with docsDevFilterIpTosMask). A value for this object of 0 and a mask of 0 matches all TOS values." DEFVAL { '00'h } ::= { docsDevFilterIpEntry 17 } Expires July 2003 [Page 43]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 docsDevFilterIpTosMask OBJECT-TYPE SYNTAX OCTET STRING ( SIZE (1) ) MAX-ACCESS read-create STATUS current DESCRIPTION "The mask to be applied to the packet's TOS value before matching." DEFVAL { '00'h } ::= { docsDevFilterIpEntry 18 } docsDevFilterIpContinue OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-create STATUS current DESCRIPTION "If this value is set to true, and docsDevFilterIpControl is anything but discard (1), continue scanning and applying policies." DEFVAL { false } ::= { docsDevFilterIpEntry 19 } docsDevFilterIpPolicyId OBJECT-TYPE SYNTAX Integer32 (0..2147483647) MAX-ACCESS read-create STATUS current DESCRIPTION "This object points to an entry in docsDevFilterPolicyTable. If docsDevFilterIpControl is set to policy (3), execute all matching policies in docsDevFilterPolicyTable. If no matching policy exists, treat as if docsDevFilterIpControl were set to accept (1). If this object is set to the value of 0, there is no matching policy, and docsDevFilterPolicyTable MUST NOT be consulted." DEFVAL { 0 } ::= { docsDevFilterIpEntry 20 } -- -- Policy Mapping Table -- docsDevFilterPolicyTable OBJECT-TYPE SYNTAX SEQUENCE OF DocsDevFilterPolicyEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "A Table which maps between a policy group ID and a set of Expires July 2003 [Page 44]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 policies to be applied. All rows with the same docsDevFilterPolicyId are part of the same policy group and are applied in the order in which they are in this table. docsDevFilterPolicyTable exists to allow multiple policy actions to be applied to any given classified packet. The policy actions are applied in index order. For example: Index ID Type Action 1 1 TOS 1 9 5 TOS 1 12 1 IPSEC 3 This says that a packet which matches a filter with policy id 1, first has TOS policy 1 applied (which might set the TOS bits to enable a higher priority), and next has the IPSEC policy 3 applied (which may result in the packet being dumped into a secure VPN to a remote encryptor). Policy ID 0 is reserved for default actions and is applied only to packets which match no filters in docsDevFilterIpTable." ::= { docsDevFilter 5 } docsDevFilterPolicyEntry OBJECT-TYPE SYNTAX DocsDevFilterPolicyEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry in the docsDevFilterPolicyTable. Entries are created by Network Management. To create an entry, docsDevFilterPolicyId and docsDevFilterPolicyAction must be specified." INDEX { docsDevFilterPolicyIndex } ::= { docsDevFilterPolicyTable 1 } DocsDevFilterPolicyEntry ::= SEQUENCE { docsDevFilterPolicyIndex Integer32, docsDevFilterPolicyId Integer32, docsDevFilterPolicyType INTEGER, -- obsolete docsDevFilterPolicyAction Integer32, -- obsolete docsDevFilterPolicyStatus RowStatus, docsDevFilterPolicyPtr RowPointer } docsDevFilterPolicyIndex OBJECT-TYPE Expires July 2003 [Page 45]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 SYNTAX Integer32 (1..2147483647) MAX-ACCESS not-accessible STATUS current DESCRIPTION "Index value for the table." ::= { docsDevFilterPolicyEntry 1 } docsDevFilterPolicyId OBJECT-TYPE SYNTAX Integer32 (0..2147483647) MAX-ACCESS read-create STATUS current DESCRIPTION "Policy ID for this entry. A policy ID can apply to multiple rows of this table, all relevant policies are executed. Policy 0 (if populated) is applied to all packets which do not match any of the filters. N.B. If docsDevFilterIpPolicyId is set to 0, it DOES NOT match policy 0 of this table." ::= { docsDevFilterPolicyEntry 2 } docsDevFilterPolicyType OBJECT-TYPE SYNTAX INTEGER { other(1), tos (2) } MAX-ACCESS read-create STATUS obsolete DESCRIPTION "This object was removed from the policy mapping table with the introduction of external policy action tables prior to publication as RFC 2669." ::= { docsDevFilterPolicyEntry 3} docsDevFilterPolicyAction OBJECT-TYPE SYNTAX Integer32 (1..2147483647) MAX-ACCESS read-create STATUS obsolete DESCRIPTION "This object was removed from the policy mapping table with the introduction of external policy action tables prior to publication as RFC 2669." ::= { docsDevFilterPolicyEntry 4 } docsDevFilterPolicyStatus OBJECT-TYPE SYNTAX RowStatus MAX-ACCESS read-create STATUS current DESCRIPTION "Object used to create an entry in this table." Expires July 2003 [Page 46]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 ::= { docsDevFilterPolicyEntry 5 } docsDevFilterPolicyPtr OBJECT-TYPE SYNTAX RowPointer MAX-ACCESS read-create STATUS current DESCRIPTION "This object points to a row in an applicable filter policy table. Currently, the only standard policy table is docsDevFilterTosTable. Per the textual convention, this object points to the first accessible object in the row. E.g. to point to a row in docsDevFilterTosTable with an index of 21, the value of this object would be the object identifier docsDevTosStatus.21. Vendors must adhere to the same convention when adding vendor specific policy table extensions. The default upon row creation is a null pointer which results in no policy action being taken." DEFVAL { zeroDotZero } ::= { docsDevFilterPolicyEntry 6 } -- -- TOS Policy action table -- docsDevFilterTosTable OBJECT-TYPE SYNTAX SEQUENCE OF DocsDevFilterTosEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Table used to describe Type of Service (TOS) bits processing. This table is an adjunct to the docsDevFilterIpTable, and the docsDevFilterPolicy table. Entries in the latter table can point to specific rows in this (and other) tables and cause specific actions to be taken. This table permits the manipulation of the value of the Type of Service bits in the IP header of the matched packet as follows: Set the tosBits of the packet to (tosBits & docsDevFilterTosAndMask) | docsDevFilterTosOrMask This construct allows you to do a clear and set of all Expires July 2003 [Page 47]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 the TOS bits in a flexible manner." ::= { docsDevFilter 6 } docsDevFilterTosEntry OBJECT-TYPE SYNTAX DocsDevFilterTosEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "A TOS policy entry." INDEX { docsDevFilterTosIndex } ::= { docsDevFilterTosTable 1 } DocsDevFilterTosEntry ::= SEQUENCE { docsDevFilterTosIndex Integer32, docsDevFilterTosStatus RowStatus, docsDevFilterTosAndMask OCTET STRING, docsDevFilterTosOrMask OCTET STRING } docsDevFilterTosIndex OBJECT-TYPE SYNTAX Integer32 (1..2147483647) MAX-ACCESS not-accessible STATUS current DESCRIPTION "The unique index for this row. There are no ordering requirements for this table and any valid index may be specified." ::= { docsDevFilterTosEntry 1 } docsDevFilterTosStatus OBJECT-TYPE SYNTAX RowStatus MAX-ACCESS read-create STATUS current DESCRIPTION "The object used to create and delete entries in this table. A row created by specifying just this object results in a row which specifies no change to the TOS bits. A row may be created using either the create-and-go or create-and-wait paradigms. There is no restriction on the ability to change values in this row while the row is active." ::= { docsDevFilterTosEntry 2 } docsDevFilterTosAndMask OBJECT-TYPE SYNTAX OCTET STRING (SIZE (1)) MAX-ACCESS read-create STATUS current DESCRIPTION Expires July 2003 [Page 48]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 "This value is bitwise AND'd with the matched packet's TOS bits." DEFVAL { 'ff'h } ::= { docsDevFilterTosEntry 3 } docsDevFilterTosOrMask OBJECT-TYPE SYNTAX OCTET STRING (SIZE (1)) MAX-ACCESS read-create STATUS current DESCRIPTION "After bitwise AND'ing with the above bits, the packet's TOS bits are bitwise OR'd with these bits, and the packet's TOS BITS are set to that value." DEFVAL { '00'h } ::= { docsDevFilterTosEntry 4 } docsDevFilterIpV6AuxTable OBJECT-TYPE SYNTAX SEQUENCE OF DocsDevFilterIpV6AuxEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "This table augments docsDevFilterIpTable with objects that allow filtering of IPv6 packets. The objects in this table exactly mirror the IPv4 objects in docsDevFilterIpTable, but become active for purposes of filtering if and only if docsDevFilterIpType is set to ipv6." ::= { docsDevFilter 7 } docsDevFilterIpV6AuxEntry OBJECT-TYPE SYNTAX DocsDevFilterIpV6AuxEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "This augments the existing objects in docsDevFilterIpEntry, but by default the objects in this entry have no effect on filtering as docsDevFilterIpType defaults to ipv4 upon row creation." AUGMENTS { docsDevFilterIpEntry } ::= { docsDevFilterIpV6AuxTable 1 } DocsDevFilterIpV6AuxEntry ::= SEQUENCE { docsDevFilterIpType InetAddressType, docsDevFilterIpV6Saddr InetAddressIPv6, docsDevFilterIpV6Smask InetAddressIPv6, docsDevFilterIpV6Daddr InetAddressIPv6, docsDevFilterIpV6Dmask InetAddressIPv6 } Expires July 2003 [Page 49]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 docsDevFilterIpType OBJECT-TYPE SYNTAX InetAddressType MAX-ACCESS read-create STATUS current DESCRIPTION "This object controls whether this filter entry refers to IP v4 or v6 type packets. If this object is ipv4, then the IpAddress objects docsDevFilterEntry apply, otherwise if this object is ipv6 then the remaining objects in this entry apply." DEFVAL { ipv4 } ::= { docsDevFilterIpV6AuxEntry 1} docsDevFilterIpV6Saddr OBJECT-TYPE SYNTAX InetAddressIPv6 MAX-ACCESS read-create STATUS current DESCRIPTION "The source address IPv6 address or portion thereof that is to be matched for this filter. The packet's source address is first masked (and'ed) against docsDevFilterIpV6Smask before being compared to this value. A value of of all zeros for this object and for the mask matches all IPv6 addresses." DEFVAL { '00000000000000000000000000000000'h } ::= { docsDevFilterIpV6AuxEntry 2 } docsDevFilterIpV6Smask OBJECT-TYPE SYNTAX InetAddressIPv6 MAX-ACCESS read-create STATUS current DESCRIPTION "A bit mask that is to be applied to the packet's source address prior to matching. The mask is not necessarily the same as a subnet mask, the the 1's bits must be leftmost and contiguous." DEFVAL { '00000000000000000000000000000000'h } ::= { docsDevFilterIpV6AuxEntry 3 } docsDevFilterIpV6Daddr OBJECT-TYPE SYNTAX InetAddressIPv6 MAX-ACCESS read-create STATUS current DESCRIPTION "The destination address IPv6 address or portion thereof that is to be matched for this filter. The packet's source address is first masked (and'ed) against docsDevFilterIpV6Dmask before being compared to this value. Expires July 2003 [Page 50]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 A value of of all zeros for this object and for the mask matches all IPv6 addresses." DEFVAL { '00000000000000000000000000000000'h } ::= { docsDevFilterIpV6AuxEntry 4 } docsDevFilterIpV6Dmask OBJECT-TYPE SYNTAX InetAddressIPv6 MAX-ACCESS read-create STATUS current DESCRIPTION "A bit mask that is to be applied to the packet's destination address prior to matching. The mask is not necessarily the same as a subnet mask, the the 1's bits must be leftmost and contiguous." DEFVAL { '00000000000000000000000000000000'h } ::= { docsDevFilterIpV6AuxEntry 5 } -- -- CPE IP Management and anti spoofing group. Only implemented on -- Cable Modems. -- docsDevCpe OBJECT IDENTIFIER ::= { docsDevMIBObjects 7} docsDevCpeEnroll OBJECT-TYPE SYNTAX INTEGER { none(1), any(2) } MAX-ACCESS read-write STATUS current DESCRIPTION "This object controls the population of docsDevFilterCpeTable. If set to none, the filters must be set manually. If set to any, the CM wiretaps the packets originating from the ethernet and enrolls up to docsDevCpeIpMax addresses based on the source IPv4 or v6 addresses of those packets. At initial system startup, default value for this object is any(2)." ::= { docsDevCpe 1 } docsDevCpeIpMax OBJECT-TYPE SYNTAX Integer32 (-1..2147483647) MAX-ACCESS read-write STATUS current DESCRIPTION "This object controls the maximum number of CPEs allowed Expires July 2003 [Page 51]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 to be learned behind this device. If set to zero, any number of CPEs may connect up to the maximum permitted for the device. If set to -1, no filtering is done on CPE source addresses, and no entries are made in the docsDevFilterCpeTable via learning. If an attempt is made to set this to a number greater than that permitted for the device, it is set to that maximum. At initial system startup, default value for this object is -1." ::= { docsDevCpe 2 } docsDevCpeTable OBJECT-TYPE SYNTAX SEQUENCE OF DocsDevCpeEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "This table lists the IP addresses seen (or permitted) as source addresses in packets originating from the customer interface on this device. In addition, this table can be provisioned with the specific addresses permitted for the CPEs via the normal row creation mechanisms. N.B. Management action can add entries in this table and in docsDevCpeIpTable past the value of docsDevCpeIpMax. docsDevCpeIpMax ONLY restricts the ability of the CM to automatically add learned addresses." ::= { docsDevCpe 3 } docsDevCpeEntry OBJECT-TYPE SYNTAX DocsDevCpeEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry in the docsDevFilterCpeTable. There is one entry for each IP CPE seen or provisioned. If docsDevCpeIpMax is set to -1, this table is ignored, otherwise: Upon receipt of an IP packet from the customer interface of the CM, the source IP address is checked against this table. If the address is in the table, packet processing continues. If the address is not in the table, but docsDevCpeEnroll is set to any and the sum of the table sizes of docsDevCpeTable and docsDevCpeV6Table is less than docsDevCpeIpMax, the address is added to the table and packet processing continues. Otherwise, the packet is dropped. The filtering actions specified by this table occur after Expires July 2003 [Page 52]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 any LLC filtering (docsDevFilterLLCTable), but prior to any IP filtering (docsDevFilterIpTable, docsDevNmAccessTable)." INDEX { docsDevCpeIp } ::= {docsDevCpeTable 1 } DocsDevCpeEntry ::= SEQUENCE { docsDevCpeIp IpAddress, docsDevCpeSource INTEGER, docsDevCpeStatus RowStatus } docsDevCpeIp OBJECT-TYPE SYNTAX IpAddress MAX-ACCESS not-accessible STATUS current DESCRIPTION "The IP address to which this entry applies. N.B. Neither the all zeros or all ones addresses may be used as the value of this object." ::= { docsDevCpeEntry 1 } docsDevCpeSource OBJECT-TYPE SYNTAX INTEGER { other(1), manual(2), learned(3) } MAX-ACCESS read-only STATUS current DESCRIPTION "This object describes how this entry was created. If the value is manual(2), this row was created by a network management action (either configuration, or SNMP set). If set to learned(3), then it was found via looking at the source IP address of a received packet." ::= { docsDevCpeEntry 2 } docsDevCpeStatus OBJECT-TYPE SYNTAX RowStatus MAX-ACCESS read-create STATUS current DESCRIPTION "Standard object to manipulate rows. To create a row in this table, you only need to specify this object. Management stations SHOULD use the create-and-go mechanism for creating rows in this table." Expires July 2003 [Page 53]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 ::= { docsDevCpeEntry 3 } docsDevCpeV6Table OBJECT-TYPE SYNTAX SEQUENCE OF DocsDevCpeV6Entry MAX-ACCESS not-accessible STATUS current DESCRIPTION "This table lists the IP V6 addresses seen (or permitted) as source addresses in packets originating from the customer interface on this device. In addition, this table can be provisioned with the specific addresses permitted for the CPEs via the normal row creation mechanisms. N.B. Management action can add entries in this table and in docsDevCpeIpTable past the value of docsDevCpeIpMax. docsDevCpeIpMax ONLY restricts the ability of the CM to automatically add learned addresses. This table exactly mirrors docsDevCpeTable and applies only to IPv6 addresses." ::= { docsDevCpe 4 } docsDevCpeV6Entry OBJECT-TYPE SYNTAX DocsDevCpeV6Entry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry in the docsDevFilterCpeTable. There is one entry for each IP V6 CPE seen or provisioned. If docsDevCpeIpMax is set to -1, this table is ignored, otherwise: Upon receipt of an IPv6 packet from the customer interface of the CM, the source IP address is checked against this table. If the address is in the table, packet processing continues. If the address is not in the table, but docsDevCpeEnroll is set to any and the sum of the table sizes for docsDevCpeTable and docsDevCpeV6Tble is less than docsDevCpeIpMax, the address is added to the table and packet processing continues. Otherwise, the packet is dropped. The filtering actions specified by this table occur after any LLC filtering (docsDevFilterLLCTable), but prior to any IP filtering (docsDevFilterIpTable, docsDevNmAccessTable)." INDEX { docsDevCpeV6Ip } ::= {docsDevCpeV6Table 1 } DocsDevCpeV6Entry ::= SEQUENCE { Expires July 2003 [Page 54]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 docsDevCpeV6Ip InetAddressIPv6, docsDevCpeV6Source INTEGER, docsDevCpeV6Status RowStatus } docsDevCpeV6Ip OBJECT-TYPE SYNTAX InetAddressIPv6 MAX-ACCESS not-accessible STATUS current DESCRIPTION "The IP address to which this entry applies. N.B. Neither the all zeros or all ones addresses may be used as values for this object." ::= { docsDevCpeV6Entry 1 } docsDevCpeV6Source OBJECT-TYPE SYNTAX INTEGER { other(1), manual(2), learned(3) } MAX-ACCESS read-only STATUS current DESCRIPTION "This object describes how this entry was created. If the value is manual(2), this row was created by a network management action (either configuration, or SNMP set). If set to learned(3), then it was found via looking at the source IP address of a received packet." ::= { docsDevCpeV6Entry 2 } docsDevCpeV6Status OBJECT-TYPE SYNTAX RowStatus MAX-ACCESS read-create STATUS current DESCRIPTION "Standard object to manipulate rows. To create a row in this table, you only need to specify this object. Management stations SHOULD use the create-and-go mechanism for creating rows in this table." ::= { docsDevCpeV6Entry 3 } docsDevVacmAccessExtTable OBJECT-TYPE SYNTAX SEQUENCE OF DocsDevVacmAccessExtEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION Expires July 2003 [Page 55]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 "This table extends the VACM access table by adding an object which represents the interface(s) to which the referenced VACM view applies." ::= { docsDevMIBObjects 8 } docsDevVacmAccessExtEntry OBJECT-TYPE SYNTAX DocsDevVacmAccessExtEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "This entry logically extends vacmAccessEntry with an interface index object." AUGMENTS { vacmAccessEntry } ::= {docsDevVacmAccessExtTable 1 } DocsDevVacmAccessExtEntry ::= SEQUENCE { docsDevVacmAccessIfIndex InterfaceIndexOrZero } docsDevVacmAccessIfIndex OBJECT-TYPE SYNTAX InterfaceIndexOrZero MAX-ACCESS read-create STATUS current DESCRIPTION "The entry interface to which this filter applies. The value corresponds to ifIndex for either a CATV MAC or another network interface. If the value is zero, the filter applies to all interfaces. In Cable Modems, the default value is the customer side interface(s). In Cable Modem Termination Systems, this object has to be specified to create a row in this table. Note that according to the DOCSIS OSSIv1.1 specification [OSSI1.1], ifIndex '1' means that this row applies to all CPE (customer-facing) interfaces." ::= { docsDevVacmAccessExtEntry 1 } -- -- Placeholder for notifications/traps. -- docsDevNotification OBJECT IDENTIFIER ::= { docsDev 2 } -- -- Conformance definitions -- -- This is the obsolete OID root of RFC 2669 conformance Expires July 2003 [Page 56]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 -- docsDevConformance OBJECT IDENTIFIER ::= { docsDev 3 } docsDevConformanceV2 OBJECT IDENTIFIER ::= { docsDev 4 } docsDevGroupsV2 OBJECT IDENTIFIER ::= { docsDevConformanceV2 1} docsDevCompliancesV2 OBJECT IDENTIFIER ::= { docsDevConformanceV2 2} docsDevBasicComplianceV2 MODULE-COMPLIANCE STATUS current DESCRIPTION "The compliance statement for DOCSIS Cable Modems and Cable Modem Termination Systems." MODULE -- docsDev -- conditionally mandatory groups GROUP docsDevBaseGroupV2 DESCRIPTION "Mandatory in Cable Modems, optional in Cable Modem Termination Systems." GROUP docsDevEventGroupV2 DESCRIPTION "Mandatory in Cable Modems, optional in Cable Modem Termination Systems." GROUP docsDevFilterGroupV2 DESCRIPTION "Mandatory in Cable Modems, optional in Cable Modem Termination Systems." GROUP docsDevNmAccessGroupV2 DESCRIPTION "The objects in this group are only accessible from cable devices which are not operating in SNMP Coexistence mode [RFC2576] nor in SNMPv3 mode [RFC3410]. With respect to devices that are required (by other specifications, e.g. [OSSI1.1]) to support the legacy SNMPv1/v2c docsDevNmAccess mode for backward compatibility, this group is mandatory in Cable Modems and is optional in Cable Modem Termination Systems." GROUP docsDevServerGroupV2 DESCRIPTION "This group is mandatory in Cable Modems, and MUST NOT be implemented in Cable Modem Termination Systems." Expires July 2003 [Page 57]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 GROUP docsDevSoftwareGroupV2 DESCRIPTION "Mandatory in Cable Modems, optional in Cable Modem Termination Systems." GROUP docsDevCpeGroupV2 DESCRIPTION "This group is optional in Cable Modems, and MUST NOT be implemented in Cable Modem Termination Systems. See [SUBMGT-MIB] for a similar CMTS capability." GROUP docsDevIpV6Group DESCRIPTION "This group is mandatory in IPv6-aware Cable Modems." GROUP docsDevIpV6CpeGroup DESCRIPTION "This group is optional in IPv6-aware Cable Modems." GROUP docsDevSnmpCoexistGroup DESCRIPTION "Mandatory in Cable Modems that support SNMPv3 [OSSI1.1], optional in Cable Modem Termination Systems." OBJECT docsDevDateTime MIN-ACCESS read-only DESCRIPTION "It is compliant to implement this object as read-only." OBJECT docsDevSTPControl SYNTAX INTEGER { noStFilterBpdu(2) } MIN-ACCESS read-only DESCRIPTION "It is compliant to implement this object as read-only. Devices need only support noStFilterBpdu(2)." OBJECT docsDevIgmpModeControl SYNTAX INTEGER { passive(1) } MIN-ACCESS read-only DESCRIPTION "It is compliant to implement this object as read-only. Devices need only support passive(1)." OBJECT docsDevSwServerAddressType SYNTAX InetAddressType { ipv4(1) } DESCRIPTION "An implementation is only required to support IPv4 addresses." Expires July 2003 [Page 58]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 OBJECT docsDevSwServerAddress SYNTAX InetAddress (SIZE(4)) DESCRIPTION "An implementation is only required to support IPv4 addresses." OBJECT docsDevServerDhcpAddressType SYNTAX InetAddressType { ipv4(1) } DESCRIPTION "An implementation is only required to support IPv4 addresses." OBJECT docsDevServerDhcpAddress SYNTAX InetAddress (SIZE(4)) DESCRIPTION "An implementation is only required to support IPv4 addresses." OBJECT docsDevServerTimeAddressType SYNTAX InetAddressType { ipv4(1) } DESCRIPTION "An implementation is only required to support IPv4 addresses." OBJECT docsDevServerTimeAddress SYNTAX InetAddress (SIZE(4)) DESCRIPTION "An implementation is only required to support IPv4 addresses." OBJECT docsDevServerConfigTftpAddressType SYNTAX InetAddressType { ipv4(1) } DESCRIPTION "An implementation is only required to support IPv4 addresses." OBJECT docsDevServerConfigTftpAddress SYNTAX InetAddress (SIZE(4)) DESCRIPTION "An implementation is only required to support IPv4 addresses." OBJECT docsDevEvReporting MIN-ACCESS read-only DESCRIPTION "It is compliant to implement this object as read-only. Devices need only support localNonvolatile(0)." Expires July 2003 [Page 59]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 OBJECT docsDevEvSyslogAddressType SYNTAX InetAddressType { ipv4(1) } DESCRIPTION "An implementation is only required to support IPv4 addresses." OBJECT docsDevEvSyslogAddress SYNTAX InetAddress (SIZE(4)) DESCRIPTION "An implementation is only required to support IPv4 addresses." OBJECT docsDevSwServerTransportProtocol SYNTAX INTEGER { tftp(1) } DESCRIPTION "An implementation is only required to support TFTP software image downloads." ::= { docsDevCompliancesV2 1 } docsDevBaseGroupV2 OBJECT-GROUP OBJECTS { docsDevRole, docsDevDateTime, docsDevResetNow, docsDevSerialNumber, docsDevSTPControl, docsDevIgmpModeControl, docsDevMaxCpe } STATUS current DESCRIPTION "A collection of objects providing device status and control." ::= { docsDevGroupsV2 1 } docsDevNmAccessGroupV2 OBJECT-GROUP OBJECTS { docsDevNmAccessIp, docsDevNmAccessIpMask, docsDevNmAccessCommunity, docsDevNmAccessControl, docsDevNmAccessInterfaces, docsDevNmAccessStatus, docsDevNmAccessTrapVersion } STATUS deprecated DESCRIPTION Expires July 2003 [Page 60]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 "A collection of objects for controlling access to SNMP objects. Deprecated in favor of SNMPv3 and coexistence MIB." ::= { docsDevGroupsV2 2 } docsDevSoftwareGroupV2 OBJECT-GROUP OBJECTS { docsDevSwAdminStatus, docsDevSwOperStatus, docsDevSwCurrentVers, docsDevSwServerAddressType, docsDevSwServerAddress, docsDevSwServerTransportProtocol } STATUS current DESCRIPTION "A collection of objects for controlling software downloads." ::= { docsDevGroupsV2 3 } docsDevServerGroupV2 OBJECT-GROUP OBJECTS { docsDevServerBootState, docsDevServerDhcpAddressType, docsDevServerDhcpAddress, docsDevServerTimeAddressType, docsDevServerTimeAddress, docsDevServerConfigTftpAddressType, docsDevServerConfigTftpAddress, docsDevServerConfigFile } STATUS current DESCRIPTION "A collection of objects providing status about server provisioning." ::= { docsDevGroupsV2 4 } docsDevEventGroupV2 OBJECT-GROUP OBJECTS { docsDevEvControl, docsDevEvThrottleAdminStatus, docsDevEvThrottleThreshold, docsDevEvThrottleInterval, docsDevEvReporting, docsDevEvFirstTime, docsDevEvLastTime, docsDevEvCounts, Expires July 2003 [Page 61]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 docsDevEvLevel, docsDevEvId, docsDevEvText, docsDevEvSyslogAddressType, docsDevEvSyslogAddress, docsDevEvThrottleThresholdExceeded } STATUS current DESCRIPTION "A collection of objects used to control and monitor events." ::= { docsDevGroupsV2 5 } docsDevFilterGroupV2 OBJECT-GROUP OBJECTS { docsDevFilterLLCUnmatchedAction, docsDevFilterIpDefault, docsDevFilterLLCStatus, docsDevFilterLLCIfIndex, docsDevFilterLLCProtocolType, docsDevFilterLLCProtocol, docsDevFilterLLCMatches, docsDevFilterIpStatus, docsDevFilterIpControl, docsDevFilterIpIfIndex, docsDevFilterIpDirection, docsDevFilterIpBroadcast, docsDevFilterIpSaddr, docsDevFilterIpSmask, docsDevFilterIpDaddr, docsDevFilterIpDmask, docsDevFilterIpProtocol, docsDevFilterIpSourcePortLow, docsDevFilterIpSourcePortHigh, docsDevFilterIpDestPortLow, docsDevFilterIpDestPortHigh, docsDevFilterIpMatches, docsDevFilterIpTos, docsDevFilterIpTosMask, docsDevFilterIpContinue, docsDevFilterIpPolicyId, docsDevFilterPolicyId, docsDevFilterPolicyStatus, docsDevFilterPolicyPtr, docsDevFilterTosStatus, docsDevFilterTosAndMask, docsDevFilterTosOrMask } Expires July 2003 [Page 62]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 STATUS current DESCRIPTION "A collection of objects to specify filters at link layer and IP layer." ::= { docsDevGroupsV2 6 } docsDevCpeGroupV2 OBJECT-GROUP OBJECTS { docsDevCpeEnroll, docsDevCpeIpMax, docsDevCpeSource, docsDevCpeStatus } STATUS current DESCRIPTION "A collection of objects used to control the number and specific values of IP addresses allowed for associated Customer Premises Equipment (CPE)." ::= { docsDevGroupsV2 7 } docsDevIpV6Group OBJECT-GROUP OBJECTS { docsDevFilterIpType, docsDevFilterIpV6Saddr, docsDevFilterIpV6Smask, docsDevFilterIpV6Daddr, docsDevFilterIpV6Dmask } STATUS current DESCRIPTION "These objects were added to deal with the filtering of IPV6 addresses." ::= { docsDevGroupsV2 8 } docsDevIpV6CpeGroup OBJECT-GROUP OBJECTS { docsDevCpeV6Source, docsDevCpeV6Status } STATUS current DESCRIPTION "A collection of objects used to control the number and specific values of IPv6 addresses allowed for associated Customer Premises Equipment (CPE)." ::= { docsDevGroupsV2 9 } docsDevSnmpCoexistGroup OBJECT-GROUP OBJECTS { Expires July 2003 [Page 63]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 docsDevVacmAccessIfIndex } STATUS current DESCRIPTION "This objects has been added to retain the capability from docsDevNmAccessTable to restrict SNMP access on a per interface basis." ::= { docsDevGroupsV2 10 } docsDevDeprecatedGroup OBJECT-GROUP OBJECTS { docsDevSwServer, docsDevSwFilename, docsDevServerDhcp, docsDevServerTime, docsDevServerTftp, docsDevEvSyslog, docsDevEvThrottleInhibited } STATUS deprecated DESCRIPTION "These objects have been deprecated to deal with the IPv6, SNMPv3 and redefinition of the CM as a multiple CPE device. They MAY be implemented, but will be removed in the next iteration of this MIB." ::= { docsDevGroupsV2 11 } docsDevObsoletedGroup OBJECT-GROUP OBJECTS { docsDevFilterPolicyType, docsDevFilterPolicyAction } STATUS obsolete DESCRIPTION "These objects have been obsoleted, and MUST NOT be implemented." ::= { docsDevGroupsV2 12 } END 5. Acknowledgments This document is a production of the IPCDN Working Group, and is a revision of RFC 2669, "Cable Device Management Information Base for DOCSIS Compliant Cable Modems and Cable Modem Termination Systems" [RFC2669]. Mike StJohns and Guenter Roeck served well as the editors of previous versions of this MIB. Expires July 2003 [Page 64]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 The editor specifically wishes to thank Howard Abramson, Eduardo Cardona, Andre Lejeune, Kevin Marez, Jean-Francois Mule, Greg Nakanishi, Pak Siripunkaw, Boris Tsekinovski, and Bill Yost for their contributions to this document. 6. Revision Descriptions [Note to RFC Editor - this section may be removed upon publication as an RFC.] This document contains the following revisions over RFC2669: o All IPv4 address objects were either deprecated and replaced, or mirrored with IPv6 objects where appropriate, following the guidelines of RFC 3291 [RFC3291]. o Objects which were obviated by the SNMPv3 coexistence MIBs have been deprecated, e.g. docsDevNmAccessTable. The SNMPv3 VACM table has been augmented with an object which can limit access based on the interface on which an agent (CM) receives SNMP packets. o A new object, docsDevSwServerTransportProtocol, has been added to docsDevSoftware, and other object DESCRIPTIONs have been modified, to enable the use of either TFTP or HTTP for software downloads to the device. o A new object, docsDevIgmpModeControl, has been added to control passive versus active IGMP modem operation [DOCSIS-IGMP]. o A new object, docsDevMaxCpe, has been added to report the maximum number of CPEs granted network access across the CM. o Minor updates to the description text have been made to a number of objects to clarify their meaning. o The compliance statements were updated to reflect current requirements. The entire RFC2669 compliance statement was omitted. 7. Normative References [RFC1350] Sollins, K., "The TFTP Protocol (Revision 2)", STD 33, RFC 1350, July 1992. [RFC1858] Ziemba, G., Reed, D., and P. Traina, "Security Considerations for IP Fragment Filtering", RFC 1858, October 1995. Expires July 2003 [Page 65]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 [RFC1945] Berners-Lee, T., Fielding, R., and H. Frystyk, "Hypertext Transfer Protocol -- HTTP/1.0", RFC 1945, May 1996. [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", RFC 2119, Harvard University, March 1997. [RFC2576] Frye, R., Levi, D., Routhier, S., and B. Wijnen, "Coexistence between Version 1, Version 2, and Version 3 of the Internet-standard Network Management Framework", RFC 2576, March 2000. [RFC2578] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose, M. and S. Waldbusser, "Structure of Management Information Version 2 (SMIv2)", STD 58, RFC 2578, April 1999. [RFC2579] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose, M. and S. Waldbusser, "Textual Conventions for SMIv2", STD 58, RFC 2579, April 1999. [RFC2580] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose, M. and S. Waldbusser, "Conformance Statements for SMIv2", STD 58, RFC 2580, April 1999. [RFC2616] Fielding, R., Gettys, J., Mogul, J., Frystyk, H., Masinter, L., Leach, P., and T. Berners-Lee, "Hypertext Transfer Protocol -- HTTP/1.1", RFC 2616, June 1999. [RFC2669] StJohns, M., "Cable Device Management Information Base for DOCSIS Compliant Cable Modems and Cable Modem Termination Systems", RFC 2669, August 1999. [RFC3128] Miller, I., "Protection against a Variant of the Tiny Fragment Attack", RFC 3128, June 2001. [RFC3291] Daniele, M., Haberman, B., Routhier, S., and J. Schoenwaelder, "Textual Conventions for Internet Network Addresses", RFC 3291, May 2002. [RFC3414] Blumenthal, U. and B. Wijnen, "User-based Security Model (USM) for version 3 of the Simple Network Management Protocol (SNMPv3)", RFC 3414, December 2002. [RFC3415] Wijnen, B., Presuhn, R., and K. McCloghrie, "View-based Access Control Model (VACM) for the Simple Network Management Protocol (SNMP)", RFC 3415, December 2002. Expires July 2003 [Page 66]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 [BPI] "Data-Over-Cable Service Interface Specifications: DOCSIS 1.0 Baseline Privacy Interface Specification SCTE 22-2 2002", SCTE Data Standards Subcommittee, 2002, http://www.scte.org/standards/. [BPIPLUS] "Data-Over-Cable Service Interface Specifications: Baseline Privacy Plus Interface Specification SP-BPI+-I09-020830", CableLabs, August 2002, http://www.cablemodem.com/specifications/. [RFI1.0] "Data-Over-Cable Service Interface Specifications: DOCSIS 1.0 Radio Frequency Interface Specification SCTE 22-1 2002", SCTE Data Standards Subcommittee, 2002, http://www.scte.org/standards/. [RFI1.1] "Data-Over-Cable Service Interface Specifications: Radio Frequency Interface Specification SP-RFIv1.1-I09-020830", CableLabs, August 2002, http://www.cablemodem.com/specifications/. [OSSI1.0] "Data-Over-Cable Service Interface Specifications: DOCSIS 1.0 Operations Support System Interface Specification Radio Frequency Interface SCTE 22-3 2002", SCTE Data Standards Subcommittee, 2002, http://www.scte.org/standards/. [OSSI1.1] "Data-Over-Cable Service Interface Specifications: Operations Support System Interface Specification SP-OSSIv1.1-I06-020830", CableLabs, August 2002, http://www.cablemodem.com/specifications/. [MTA-PROV] "PacketCable(TM) MTA Device Provisioning Specification PKT-SP-PROV-I05-021127", CableLabs, November 2002, http://www.packetcable.com/specifications/. 8. Informative References [RFC1224] L. Steinberg, "Techniques for Managing Asynchronously Generated Alerts", RFC 1224, May 1991. [RFC3410] Case, J., Mundy, R., Partain, D. and B. Stewart, "Introduction and Applicability Statements for Internet- Standard Management Framework", RFC 3410, December 2002. [DOCSIS-IGMP] Abramson, H., "Application of the IGMP MIB, RFC 2933, and Cable Device MIB, RFC 2669, to Docsis 1.1 Devices", work in progress. Expires July 2003 [Page 67]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 [EVENT-MIB] Gao, J., and P. Siripunkaw, "Event Notification Management Information Base for DOCSIS 1.1 Compliant Cable Modems and Cable Modem Termination Systems", work in progress. [QOS-MIB] Patrick, M, "Data Over Cable System Quality of Service Management Information Base (DOCSIS-QOS MIB)", work in progress. [SUBMGT-MIB] Sawyer, W., "Management Information Base for DOCSIS Cable Modem Termination Systems for Subscriber Management", work in progress. 9. Security Considerations This MIB relates to a system which will provide metropolitan public internet access. As such, improper manipulation of the objects represented by this MIB may result in denial of service to a large number of end-users. In addition, manipulation of the docsDevNmAccessTable, docsDevFilterLLCTable, docsDevFilterIpTable and the elements of the docsDevCpe group may allow an end-user to increase their service levels, spoof their IP addresses, change the permitted management stations, or affect other end-users in either a positive or negative manner. It is recommended that the implementers prevent the "tiny fragment" and "overlapping fragment" attacks for the IP filtering tables in this MIB, as discussed in [RFC1858] and [RFC3128]. Prevention of these attacks can be implemented with the following rules, when TCP source and/or destination port filtering is enabled: o admit all packets with fragment offset >= 2 o discard all packets with fragment offset = 1, or with fragment offset = 0 AND fragment payload length < 16. o apply filtering rules to all packets with fragment offset = 0. This MIB does not affect confidentiality of services on a cable modem system. [BPI] and [BPIPLUS] specify the implementation of the DOCSIS Baseline Privacy and Baseline Privacy Plus mechanisms for data transmission confidentiality. There are a number of management objects defined in this MIB module with a MAX-ACCESS clause of read-write and/or read-create. Such objects may be considered sensitive or vulnerable in some network environments. The support for SET operations in a non-secure environment without proper protection can have a negative effect on Expires July 2003 [Page 68]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 network operations. These are the tables and objects and their sensitivity/vulnerability: o The use of docsDevNmAccessTable to specify management stations is considered to be only limited protection and does not protect against attacks which spoof the management station's IP address. The use of stronger mechanisms such as SNMPv3 security should be considered where possible. Specifically, SNMPv3 USM [RFC3414] and VACM [RFC3415] MUST be used with any v3 agent which implements this MIB. o The CM may have its software changed by the actions of the management system. An improper software download may result in substantial vulnerabilities and the loss of the ability of the management system to control the cable modem. A cable device SHOULD implement the code verification mechanisms of [BPIPLUS] to verify the source and integrity of downloaded software images. o The device may be reset by setting docsDevResetNow = true(1). This causes the device to reload its configuration files as well as eliminating all previous non-persistent network management settings. As such, this may provide a vector for attacking the system. o Setting docsDevEvThrottleAdminStatus = unconstrained(1) (which is also the DEFVAL) may cause flooding of traps, which can disrupt network service. Some of the readable objects in this MIB module (i.e., objects with a MAX-ACCESS other than not-accessible) may be considered sensitive or vulnerable in some network environments. It is thus important to control even GET access to these objects and possibly to even encrypt the values of these objects when sending them over the network via SNMP. These are the tables and objects and their sensitivity/vulnerability: o Rows from docsDevNmAccessTable may provide sufficient information for attackers to spoof management stations which have management access to the device. o The docsDevSwCurrentVers object may provide hints as to the software vulnerabilities of the cable device. o The docsDevFilterLLCTable and docsDevFilterLLCTable may provide clues for attacking the cable device and other subscriber devices. Expires July 2003 [Page 69]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 SNMP versions prior to SNMPv3 did not include adequate security. Even if the network itself is secure (for example by using IPSec), even then, there is no control as to who on the secure network is allowed to access and GET/SET (read/change/create/delete) the objects in this MIB module. It is RECOMMENDED that implementers consider the security features as provided by the SNMPv3 framework (see [RFC3410], section 8), including full support for the SNMPv3 cryptographic mechanisms (for authentication and privacy). Further, deployment of SNMP versions prior to SNMPv3 is NOT RECOMMENDED. Instead, it is RECOMMENDED to deploy SNMPv3 and to enable cryptographic security. It is then a customer/operator responsibility to ensure that the SNMP entity giving access to an instance of this MIB module, is properly configured to give access to the objects only to those principals (users) that have legitimate rights to indeed GET or SET (change/create/delete) them. 10. Intellectual Property The IETF takes no position regarding the validity or scope of any intellectual property or other rights that might be claimed to pertain to the implementation or use of the technology described in this document or the extent to which any license under such rights might or might not be available; neither does it represent that it has made any effort to identify any such rights. Information on the IETF's procedures with respect to rights in standards-track and standards-related documentation can be found in BCP-11. Copies of claims of rights made available for publication and any assurances of licenses to be made available, or the result of an attempt made to obtain a general license or permission for the use of such proprietary rights by implementors or users of this specification can be obtained from the IETF Secretariat. The IETF invites any interested party to bring to its attention any copyrights, patents or patent applications, or other proprietary rights which may cover technology that may be required to practice this standard. Please address the information to the IETF Executive Director. 11. Editor's Address Richard Woundy Comcast Cable 27 Industrial Avenue Chelmsford, MA 01824 U.S.A. Expires July 2003 [Page 70]
INTERNET-DRAFT DOCSIS Cable Device MIB January 2003 Phone: +1 978 244 4010 Email: richard_woundy@cable.comcast.com 12. Full Copyright Statement Copyright (C) The Internet Society (2003). All Rights Reserved. This document and translations of it may be copied and furnished to others, and derivative works that comment on or otherwise explain it or assist in its implementation may be prepared, copied, published and distributed, in whole or in part, without restriction of any kind, provided that the above copyright notice and this paragraph are included on all such copies and derivative works. However, this document itself may not be modified in any way, such as by removing the copyright notice or references to the Internet Society or other Internet organizations, except as needed for the purpose of developing Internet standards in which case the procedures for copyrights defined in the Internet Standards process must be followed, or as required to translate it into languages other than English. The limited permissions granted above are perpetual and will not be revoked by the Internet Society or its successors or assigns. This document and the information contained herein is provided on an "AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Acknowledgement Funding for the RFC Editor function is currently provided by the Internet Society. Expires July 2003 [Page 71]
