Internet Engineering Task Force                                  R. Cole
Internet-Draft                                  Johns Hopkins University
Intended status: Standards Track                             I. Chakeres
Expires: August 25, 2009                                          CenGen
                                                       February 21, 2009


 Definition of Managed Objects for the Neighborhood Discovery Protocol
                      draft-cole-manet-nhdp-mib-01

Status of This Memo

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   This Internet-Draft will expire on August 25, 2009.

Copyright Notice

   Copyright (c) 2009 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

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Abstract

   This memo defines a portion of the Management Information Base (MIB)



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   for use with network management protocols in the Internet community.
   In particular, it describes objects for configuring aspects of the
   Neighborhood Discovery Protocol (NHDP) process on a router.  The NHDP
   MIB also reports state information, performance information and
   notifications.  This additional state and performance information is
   useful to management stations troubleshooting neighbor discovery
   problems.

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  3
   2.  The Internet-Standard Management Framework . . . . . . . . . .  3
   3.  Conventions  . . . . . . . . . . . . . . . . . . . . . . . . .  3
   4.  Overview . . . . . . . . . . . . . . . . . . . . . . . . . . .  3
     4.1.  Terms  . . . . . . . . . . . . . . . . . . . . . . . . . .  3
     4.2.  Organization . . . . . . . . . . . . . . . . . . . . . . .  4
   5.  Structure of the MIB Module  . . . . . . . . . . . . . . . . .  4
     5.1.  Textual Conventions  . . . . . . . . . . . . . . . . . . .  5
     5.2.  The General Information Group  . . . . . . . . . . . . . .  5
     5.3.  The Configuration Group  . . . . . . . . . . . . . . . . .  5
       5.3.1.  Interface Parameters . . . . . . . . . . . . . . . . .  5
       5.3.2.  Node Parameters  . . . . . . . . . . . . . . . . . . .  8
       5.3.3.  Parameter Change Constraints . . . . . . . . . . . . .  9
     5.4.  The State Group  . . . . . . . . . . . . . . . . . . . . .  9
     5.5.  The Performance Group  . . . . . . . . . . . . . . . . . . 10
     5.6.  The Notifications  . . . . . . . . . . . . . . . . . . . . 10
   6.  Relationship to Other MIB Modules  . . . . . . . . . . . . . . 11
     6.1.  Relationship to the SNMPv2-MIB . . . . . . . . . . . . . . 11
     6.2.  Relationship to the IF-MIB . . . . . . . . . . . . . . . . 11
     6.3.  MIB modules required for IMPORTS . . . . . . . . . . . . . 11
   7.  Definitions  . . . . . . . . . . . . . . . . . . . . . . . . . 11
   8.  Security Considerations  . . . . . . . . . . . . . . . . . . . 40
   9.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . . 42
   10. Contributors . . . . . . . . . . . . . . . . . . . . . . . . . 43
   11. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 43
   12. References . . . . . . . . . . . . . . . . . . . . . . . . . . 43
     12.1. Normative References . . . . . . . . . . . . . . . . . . . 43
     12.2. Informative References . . . . . . . . . . . . . . . . . . 43
   Appendix A.  Change Log  . . . . . . . . . . . . . . . . . . . . . 43
   Appendix B.  Open Issues . . . . . . . . . . . . . . . . . . . . . 44
   Appendix C.    . . . . . . . . . . . . . . . . . . . . . . . . . . 45










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1.  Introduction

   This memo defines a portion of the Management Information Base (MIB)
   for use with network management protocols in the Internet community.
   In particular, it describes objects for configuring aspects of the
   Neighborhood Discovery Protocol (NHDP) [I-D:ietf-manet-nhdp] process
   on a router.  The NHDP MIB also reports state information,
   performance information and notifications.  This additional state and
   performance information is useful to management stations
   troubleshooting neighbor discovery problems.

2.  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].

3.  Conventions

   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 RFC 2119 [RFC2119].

4.  Overview

   The NHDP protocol allows routers in a Mobile Ad-Hoc Network (MANET)
   setting to discover and track one-hop and two-hop neighbor sets.
   This information is useful for routers running various routing and
   multicast flooding protocols developed within the IETF MANET Working
   Group.

4.1.  Terms

   The following definitions apply throughout this document:

   o  Configuration Objects - switches, tables, objects which are
      initialized to default settings or set through the management
      interface defined by this MIB.




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   o  Tunable Configuration Objects - objects whose values affect timing
      or attempt bounds on the NHDP protocol.

   o  State Objects - automatically generated values which define the
      current operating state of the NHDP protocol process in the
      router.

   o  Performance Objects - automatically generated values which help an
      administrator or automated tool to assess the performance of the
      NHDP protocol process on the router and the overall discovery
      performance within the NHDP domain.

4.2.  Organization

   This document is organized as ...

5.  Structure of the MIB Module

   This section presents the structure of the NHDP MIB module.  The MIB
   is arranged into the following structure:

   o  nhdpNotifications - objects defining NHDP MIB notifications.

   o  nhdpObjects - defining objects within this MIB.  The objects are
      arranged into the following groups:

   o

      *  General Information Group - defining objects of a general
         nature, e.g., version numbers.

      *  Configuration Group - defining objects related to the
         configuration of the NHDP instance on the device.

      *  State Group - defining objects which reflect the current state
         of the NHDP running on the device.

      *  Performance Group - defining objects which are useful to a
         management station when characterizing the performance of the
         NHDP on the device and in the MANET.

   o  nhdpConformance - defining the minimal and maximal conformance
      requirements for implementations of this MIB.








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5.1.  Textual Conventions

   This section is TBD.

5.2.  The General Information Group

   This section provides general information about the capabilities of
   the device running the NHDP.  This group is currently empty and will
   be removed in future drafts if no objects are identified.

5.3.  The Configuration Group

   The device is configured with a set of controls.  These will serve as
   the object descriptions once they are discussed and refined.  The
   list of configuration controls for the NHDP-MIB (found in [ietf-
   manet-nhdp]), are discussed in the following subsections.

5.3.1.  Interface Parameters

   The Interface Parameters include:

5.3.1.1.  Message Intervals

   o  HELLO_INTERVAL - is the maximum time between the transmission of
      two successive HELLO messages on this MANET interface.  If using
      periodic transmission of HELLO messages, these SHOULD be at a
      separation of HELLO_INTERVAL, possibly modified by jitter as
      specified in [XXX].

   o  HELLO_MIN_INTERVAL - is the minimum interval between transmission
      of two successive HELLO messages, on this MANET interface.  (This
      minimum interval MAY be modified by jitter, as defined in [XXX].)

   o  REFRESH_INTERVAL - is the maximum interval between advertisements
      in a HELLO message of each 1-hop neighbor address and its status.
      In all intervals of length REFRESH_INTERVAL, a node MUST include
      all 1-hop neighbor information which it is specified as sending in
      at least one HELLO message on this MANET interface.

   The following constraints apply to these interface parameters:

   o  HELLO_INTERVAL > 0

   o  HELLO_MIN_INTERVAL >= 0

   o  HELLO_INTERVAL >= HELLO_MIN_INTERVAL





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   o  REFRESH_INTERVAL >= HELLO_INTERVAL

   o  If INTERVAL_TIME message TLVs as defined in [XXX] are included in
      HELLO messages, then HELLO_INTERVAL MUST be representable as
      described in [XXX].

   o  If REFRESH_INTERVAL > HELLO_INTERVAL, then a node may distribute
      its neighbor advertisements between HELLO messages in any manner,
      subject to the constraints above.

   o  For a node to employ this protocol in a purely responsive manner
      on a MANET interface, REFRESH_INTERVAL and HELLO_INTERVAL SHOULD
      both be set to a value such that a responsive HELLO message is
      always expected in a shorter period than this.

   The following default values are recommended:

   o  HELLO_INTERVAL = 2 seconds

   o  HELLO_MIN_INTERVAL = HELLO_INTERVAL/4

   o  REFRESH_INTERVAL = HELLO_INTERVAL

5.3.1.2.  Information Validity Times

   Parameters related to the Information Validity Times include:

   o  L_HOLD_TIME - is the period of advertisement, on this MANET
      interface, of former 1-hop neighbor addresses as lost in HELLO
      messages, allowing recipients of these HELLO messages to
      accelerate removal of information from their Link Sets.
      L_HOLD_TIME can be set to zero if accelerated information removal
      is not required.

   o  H_HOLD_TIME - is used as the value in the VALIDITY_TIME message
      TLV included in all HELLO messages on this MANET interface.

   The following constraints apply to these interface parameters:

   o  L_HOLD_TIME >= 0

   o  H_HOLD_TIME >= REFRESH_INTERVAL

   o  If HELLO messages can be lost then both SHOULD be significantly
      greater than REFRESH_INTERVAL.

   o  H_HOLD_TIME MUST be representable as described in [XXX].




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   o  H_HOLD_TIME = 3 x REFRESH_INTERVAL

   o  L_HOLD_TIME = H_HOLD_TIME

   o  N_HOLD_TIME = L_HOLD_TIME

   o  I_HOLD_TIME = N_HOLD_TIME

5.3.1.3.  Link Quality

   Parameters related to the Link Quality include:

   o  HYST_ACCEPT - is the link quality threshold at or above which a
      link becomes usable, if it was not already so.

   o  HYST_REJECT - is the link quality threshold below which a link
      becomes unusable, if it was not already so.

   o  INITIAL_QUALITY - is the initial quality of a newly identified
      link.

   o  INITIAL_PENDING - if true, then a newly identified link is
      considered pending, and is not usable until the link quality has
      reached or exceeded the HYST_ACCEPT threshold.

   The following constraints apply to these interface parameters:

   o  0 < = HYST_REJECT < = HYST_ACCEPT < = 1

   o  0 < = INITIAL_QUALITY < = 1.

   o  If link quality is not updated, then INITIAL_QUALITY >=
      HYST_ACCEPT.

   o  If INITIAL_QUALITY => HYST_ACCEPT, then INITIAL_PENDING == false.

   o  If INITIAL_QUALITY < HYST_REJECT, then INITIAL_PENDING == true.

   Link quality is a mechanism whereby a node MAY take considerations
   other than message exchange into account for determining when a link
   is and is not a candidate for being considered as HEARD or SYMMETRIC.
   Link quality is used only locally by a node, and nodes may fully
   inter-operate whether they are using the same, different or no link
   quality methods.

   NHDP can be operated when the local node does not implement Link
   Quality.  In order for a node to not employ link quality, the node
   MUST define:



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   o  INITIAL_PENDING = false

   o  INITIAL_QUALITY >= HYST_REJECT (there is no reason not to define
      INITIAL_QUALITY = 1).

   If link quality is changed, then parameter values will depend on the
   link quality process.  If link quality is not changed, then:

   o  HYST_ACCEPT = 1

   o  HYST_REJECT = 0

   o  INITIAL_QUALITY = 1

   o  INITIAL_PENDING = false

5.3.1.4.  Jitter

   If jitter, as defined in [XXX], is used then these parameters are as
   follows:

   o  HP_MAXJITTER - represents the value of MAXJITTER used in [XXX] for
      periodically generated HELLO messages on this MANET interface.

   o  HT_MAXJITTER - represents the value of MAXJITTER used in [XXX] for
      externally triggered HELLO messages on this MANET interface.

   For constraints on these interface parameters see [XXX].

   The following default values are recommended:

   o  HP_MAXJITTER = HELLO_INTERVAL/4

   o  HT_MAXJITTER = HP_MAXJITTER

   o  C = 1/1024 second

5.3.2.  Node Parameters

   The following Node Parameters apply:

5.3.2.1.  Information Validity Time

   o  N_HOLD_TIME - is used as the period during which former 1-hop
      neighbor addresses are advertised as lost in HELLO messages,
      allowing recipients of these HELLO messages to accelerate removal
      of information from their 2-Hop Sets.  N_HOLD_TIME can be set to
      zero if accelerated information removal is not required.



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   o  I_HOLD_TIME - is the period for which a recently used local
      interface address is recorded.

   The following constraints applies to these node parameters:

   o  N_HOLD_TIME >= 0

   o  I_HOLD_TIME >= 0

5.3.3.  Parameter Change Constraints

   These parameters may be made dynamic:

   o  HELLO_INTERVAL

   o  REFRESH_INTERVAL

   o  HYST_ACCEPT and HYST_REJECT

   o  L_HOLD_TIME

   o  N_HOLD_TIME

   o  HP_MAXJITTER

   o  HT_MAXJITTER

5.4.  The State Group

   The State Subtree reports current state information, including
   neighbor tables.  These are separately discussed below.

   (Note: these will serve as the object descriptions once they are
   discussed and refined.)

   The Local Information Base (LIB), contains the addresses of the
   interfaces (MANET and non-MANET) of this node.  The contents of this
   Information Base are not changed by signaling.  The LIB contains two
   tables:

   o  The "Local Interface Set", which consists of Local Interface
      Tuples, each of which records the addresses of an interface (MANET
      or non- MANET) of the node.

   o  The "Removed Interface Address Set", which consists of Removed
      Interface Address Tuples, each of which records a recently used
      address of an interface (MANET or non-MANET) of the node.  A
      node's Removed Interface Address Set records addresses which were



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      recently local interface addresses.  If a node's interface
      addresses are immutable then this set is always empty and MAY be
      omitted.

   The Interface Information Based (IIB), recording information
   regarding links to this MANET interface and symmetric 2-hop neighbors
   which can be reached through such links.  The IIB contains two
   tables:

   o  A "Link Set", which records information about current and recently
      lost links between this interface and MANET interfaces of 1-hop
      neighbors.  The Link Set consists of Link Tuples, each of which
      contains information about a single link.  Recently lost links are
      recorded so that they can be advertised in HELLO messages,
      accelerating their removal from relevant 1-hop neighbors' Link
      Sets.  Link quality information, if used and available, is
      recorded in Link Tuples and may indicate that links are treated as
      lost.

   o  A "Two-Hop Set", which records the existence of bidirectional
      links between symmetric 1-hop neighbors of this MANET interface
      and other nodes (symmetric 2-hop neighbors).  The 2-Hop Set
      consists of 2-Hop Tuples, each of which records an interface
      address of a symmetric 2-hop neighbor, and all interface addresses
      of the corresponding symmetric 1-hop neighbor.  The 2-Hop Set is
      updated by the signaling of this protocol, but is not itself
      reported in that signaling.

   The Node Information Base (NIB), records information regarding
   current and recently lost 1-hop neighbors of this node.  The NIB
   contains two tables:

   o  The "Neighbor Set", and

   o  The "Lost Neighbor Set".

5.5.  The Performance Group

   Reports values relevant to system performance.  These will serve as
   the object descriptions once they are discussed and refined.

5.6.  The Notifications

   The Notifications Subtree contains the list of notifications
   supported within the NHDP MIB and their intended purpose or utility.
   This group is currently empty, pending further discussion.





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6.  Relationship to Other MIB Modules

   [TODO]: The text of this section specifies the relationship of the
   MIB modules contained in this document to other standards,
   particularly to standards containing other MIB modules.  Definitions
   imported from other MIB modules and other MIB modules that SHOULD be
   implemented in conjunction with the MIB module contained within this
   document are identified in this section.

6.1.  Relationship to the SNMPv2-MIB

   The 'system' group in the SNMPv2-MIB [RFC3418] is defined as being
   mandatory for all systems, and the objects apply to the entity as a
   whole.  The 'system' group provides identification of the management
   entity and certain other system-wide data.  The NHDP-MIB does not
   duplicate those objects.

6.2.  Relationship to the IF-MIB

   [TODO] This section is included as an example; If the MIB module is
   not an adjunct of the Interface MIB, then this section should be
   removed.

6.3.  MIB modules required for IMPORTS

   [TODO]: Citations are not permitted within a MIB module, but any
   module mentioned in an IMPORTS clause or document mentioned in a
   REFERENCE clause is a Normative reference, and must be cited
   someplace within the narrative sections.  If there are imported items
   in the MIB module, such as Textual Conventions, that are not already
   cited, they can be cited in text here.  Since relationships to other
   MIB modules should be described in the narrative text, this section
   is typically used to cite modules from which Textual Conventions are
   imported.

   The following NHDP MIB module IMPORTS objects from SNMPv2-SMI
   [RFC2578], SNMPv2-TC [RFC2579], SNMPv2-CONF [RFC2580], and IF-MIB
   [RFC2863]

7.  Definitions


 NHDP-MIB DEFINITIONS ::= BEGIN

 -- This MIB is currently in a very initial stage.
 -- Not all proposed objects have been identified yet
 -- in the current draft.  The MIB have not been
 -- formally checked by any MIB checkers yet.



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 IMPORTS
     MODULE-IDENTITY, OBJECT-TYPE, Counter32,
     Gauge32, Integer32, Unsigned32
                  FROM SNMPv2-SMI  --[RFC2578]
     TEXTUAL-CONVENTION, StorageType, TimeStamp,
     TruthValue, RowStatus
                  FROM SNMPv2-TC  --[RFC2579]
     MODULE-COMPLIANCE, OBJECT-GROUP
                  FROM SNMPv2-CONF  --[STD58]
     InetAddressType, InetAddress
                  FROM INET-ADDRESS-MIB  --[RFC3291]
     InterfaceIndexOrZero
                  FROM IF-MIB  --[RFC2863]


 nhdpMIB MODULE-IDENTITY
        LAST-UPDATED "200902151500Z"  -- February 15, 2009
        ORGANIZATION "IETF MANET working group"
        CONTACT-INFO
        "WG E-Mail: manet@ietf.org

         WG Chairs: ian.chakeres@gmail.com
                    jmacker@nrl.navy.mil


         Editors:   Robert G. Cole
                    Johns Hopkins University
                    Applied Physics Lab and
                    Department of Computer Science
                    11000 Johns Hopkins Road
                    Room 02-257
                    Laurel, MD 22014
                    USA
                    +1 443 778-6951
                    robert.cole@jhuapl.edu
                    http://www.cs.jhu.edu/~rgcole/

                    Ian D Chakeres
                    CenGen
                    9250 Bendix Road North
                    Columbia, Maryland  21045
                    USA
                    ian.chakeres@gmail.com
                    http://www.ianchak.com/"



        DESCRIPTION



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            "This NHDP MIB module is applicable to devices
             implementing the Neighborhood Discovery Protocol
             defined in [XXX].

             Copyright (C) The IETF Trust (2009). This version
             of this MIB module is part of RFC xxxx; see the RFC
             itself for full legal notices."

        -- revision
        REVISION    "200811031500Z"   -- February 15, 2009
        DESCRIPTION
          "The second version of this MIB module,
           published as draft-cole-manet-nhdp-mib-01.txt.  Major
           update adding objects for configuration and state."
        REVISION    "200804251500Z"   -- April 25, 2008
        DESCRIPTION
          "The original version of this MIB module,
           published as RFCXXXX."
        -- RFC-Editor assigns XXXX
        ::= { manet XX }   -- to be assigned by IANA

 --
 -- Top-Level Components of this MIB
 --
 nhdpNotifications OBJECT IDENTIFIER ::= { nhdpMIB 0 }
 nhdpObjects       OBJECT IDENTIFIER ::= { nhdpMIB 1 }
 nhdpConformance   OBJECT IDENTIFIER ::= { nhdpMIB 2 }


 --
 -- Textual Conventions
 --

 NeighborIfIndex ::= TEXTUAL-CONVENTION
     STATUS       current
     DESCRIPTION
         "A locally arbitrary unique identifier associated with an
         NHDP neighbor interface.

         All objects of type NeighborIfIndex are assigned by the agent
         out of a common number space. In other words, NeighborIfIndex
         values assigned to entries in one table must not overlap with
         NeighborIfIndex values assigned to entries in another
         table.

         The NeighborIfIndex defines a discovered interface of a 1-hop
         or 2-hop neighbor of the local node.  The agent identifies a
         unique neighbor interface through the reciept of an address



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         list advertised through an NHDP HELLO message.

         The value for each discovered neighbor interface must remain
         constant at least from one re-initialization of the entity's
         network management system to the next re-initialization, except
         that if an application is deleted and re-created.

         The specific value is meaningful only within a given SNMP
         entity. An NeighborIfIndex value must not be re-used until the
         next agent restart."
     SYNTAX       Unsigned32 (1..2147483647)


 NeighborNodeId ::= TEXTUAL-CONVENTION
     STATUS       current
     DESCRIPTION
         "A locally arbitrary unique identifier associated with an
         NHDP discovered peer node.

         All objects of type NeighborNodeId are assigned by the agent
         out of a common number space.

         The NeighborNodeId defines a discovered NHDP peer of
         the local node.  The agent identifies a
         unique neighbor through the reciept of an address
         list advertised through an NHDP HELLO message and the
         associated  .....

         The value for each discovered neighbor ID must remain
         constant at least from one re-initialization of the entity's
         network management system to the next re-initialization, except
         that if an application is deleted and re-created.

         The specific value is meaningful only within a given SNMP
         entity. An NeighborNodeId value must not be re-used until the
         next agent restart."
     SYNTAX       Unsigned32 (1..2147483647)



 --
 -- nhdpObjects
 --

 --    General Objects Group - ...
 --    Configuration Objects Group - ...
 --    State Objects Group - ...
 --    Performance Objects Group - ...



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 --
 -- nhdpGeneralObjGrp
 --

 --    Note: These objects apply globally to the router's
 --    NHDP process.

 nhdpGeneralObjGrp  OBJECT IDENTIFIER ::= { nhdpObjects 1 }

   --(proposed object list here.)








 --
 -- nhdpConfigurationObjGrp
 --

 -- Contains the NHDP objects which configure specific options
 -- which determine the overall performance and operation of the
 -- discovery protocol.

 nhdpConfigurationObjGrp OBJECT IDENTIFIER ::= { nhdpObjects 2 }


    nhdpInterfaceTable  OBJECT-TYPE
       SYNTAX      SEQUENCE OF NhdpInterfaceEntry
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
          "The NHDP Interface Table describes the
           configuration of the interfaces of this NHDP device.
           The ifIndex is from the interfaces group
           defined in the Interfaces Group MIB.

           The object 'nhdpIfStatus' provides the functionality
           expected by the NHDP in the Local Interface Base (LIB)
           Local Interface Set Table.  Hence, the Local Interface
           Set Table will not be defined below."
       REFERENCE
          "RFC 2863 - The Interfaces Group MIB, McCloghrie,
           K., and F. Kastenholtz, June 2000."
    ::= { nhdpConfigurationObjGrp 1 }




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    nhdpInterfaceEntry OBJECT-TYPE
       SYNTAX      NhdpInterfaceEntry
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
          "The NHDP interface entry describes one NHDP
           local interface configuration as indexed by
           its ifIndex as defined in the Standard MIB II
           Interface Table (RFC2863)."
       INDEX { nhdpIfIndex }
    ::= { nhdpInterfaceTable 1 }

    NhdpInterfaceEntry ::=
       SEQUENCE {
          nhdpIfIndex
             InterfaceIndex,
          nhdpIfStatus
             TruthValue,
          nhdpHelloInterval
             Unsighned32,
          nhdpHelloMinInterval
             Unsigned32,
          nhdpRefreshInterval
             Unsigned32,
          nhdpLHoldTime
             Unsigned32,
          nhdpHHoldTime
             Unsigned32,
          nhdpHystAcceptQuality
             Unsigned32,
          nhdpHystRejectQuality
             Unsigned32,
          nhdpInitialQuality
             Unsigned32,
          nhdpInitialPending
             Unsigned32,
          nhdpHpMaxJitter
             Unsigned32,
          nhdpHtMaxJitter
             Unsigned32,
          nhdpHHoldTime
             Unsigned32,
          nhdpIHoldTime
             Unsigned32,
          nhdpIfRowStatus
             RowStatus
          }




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    nhdpIfIndex  OBJECT-TYPE
       SYNTAX      InterfaceIndex
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
          "The ifIndex for this NHDP device interface."
       ::= { nhdpInterfaceEntry 1 }

    nhdpIfStatus  OBJECT-TYPE
       SYNTAX      TruthValue
       UNITS       ""
       MAX-ACCESS  read-write
       STATUS      current
       DESCRIPTION
          "The nhpdIfStatus indicates the current status of
           this NHDP device's interface with respect to
           supporting the NHDP protocol. A value of true(1) indicates
           that the interface is currently running the NHDP
           protocol.  A value of false(2) indicates that the interface
           is currently not running the NHDP protocol."
       DEFVAL { TBD }
       REFERENCE
          ""
    ::= { nhdpInterfaceEntry 2 }

    -- Interface Parameters - Message Intervals

    nhdpHelloInterval  OBJECT-TYPE
       SYNTAX      Unsigned32 (0..255)
       UNITS       "seconds"
       MAX-ACCESS  read-write
       STATUS      current
       DESCRIPTION
          "The nhpdHelloInterval ..."
       DEFVAL { 2 }
       REFERENCE
          "The NHDP version 5 draft.
           Section 5 on Protocol Parameters and
           Constraints."
    ::= { nhdpInterfaceEntry 3 }

    nhdpHelloMinInterval  OBJECT-TYPE
       SYNTAX      Unsigned32 (0..255)
       UNITS       "seconds"
       MAX-ACCESS  read-write
       STATUS      current
       DESCRIPTION
          "The nhpdHelloMinInterval ...



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           The default value for this object is
           equal to the nhdpHelloInterval"
       DEFVAL { nhdpHelloInterval }
       REFERENCE
          "The NHDP version 5 draft.
           Section 5 on Protocol Parameters and
           Constraints."
    ::= { nhdpInterfaceEntry 4 }

    nhdpRefreshInterval  OBJECT-TYPE
       SYNTAX      Unsigned32 (0..255)
       UNITS       "seconds"
       MAX-ACCESS  read-write
       STATUS      current
       DESCRIPTION
          "The nhpdRefreshInterval ...
           The default bvalue for the nhdpRefreshInterval
           is equal fo the nhdpHelloInterval."
       DEFVAL { nhdpHelloInterval }
       REFERENCE
          "The NHDP version 5 draft.
           Section 5 on Protocol Parameters and
           Constraints."
    ::= { nhdpInterfaceEntry 5 }

    -- Interface Parameters - Information Validity times

    nhdpLHoldTime  OBJECT-TYPE
       SYNTAX      Unsigned32 (0..255)
       UNITS       "seconds"
       MAX-ACCESS  read-write
       STATUS      current
       DESCRIPTION
          "The L_HOLD_TIME is used to define the time
           for which a recently used and replaced
           originator address is used to recognize
           the node's own messages.

           The following constraint applies to this
           parameter: olsrv2OHoldTime >= 0"
       DEFVAL { TBD }
       REFERENCE
          "The NHDP version 5 draft.
           Section 5 on Protocol Parameters and
           Constraints."
    ::= { nhdpInterfaceEntry 6 }

    nhdpHHoldTime  OBJECT-TYPE



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       SYNTAX      Unsigned32 (0..255)
       UNITS       "seconds"
       MAX-ACCESS  read-write
       STATUS      current
       DESCRIPTION
          "The H_HOLD_TIME is used to define the time
           for which a recently used and replaced
           originator address is used to recognize
           the node's own messages.

           The following constraint applies to this
           parameter: olsrv2OHoldTime >= 0"
       DEFVAL { TBD }
       REFERENCE
          "The NHDP version 5 draft.
           Section 5 on Protocol Parameters and
           Constraints."
    ::= { nhdpInterfaceEntry 7 }

    -- Interface Parameters - Link Quality
    -- (is optional and settings define operation)

    nhdpHystAcceptQuality  OBJECT-TYPE
       SYNTAX      Unsigned32 (0..255)
       UNITS       ""
       MAX-ACCESS  read-write
       STATUS      current
       DESCRIPTION
          "The nhdpHystAcceptQuality is the
           link quality threshold at or above
           which a link becomes usable,
           if it was not already so.

           The following constraint   "
       DEFVAL { TBD }
       REFERENCE
          "The NHDP version 5 draft.
           Section 5 on Protocol Parameters and
           Constraints."
    ::= { nhdpInterfaceEntry 8 }

    nhdpHystRejectQuality  OBJECT-TYPE
       SYNTAX      Unsigned32 (0..255)
       UNITS       ""
       MAX-ACCESS  read-write
       STATUS      current
       DESCRIPTION
          "The nhdpHystRejectQuality is the



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           link quality threshold below which
           a link becomes unusable, if it
           was not already so.

           The following constraint   "
       DEFVAL { TBD }
       REFERENCE
          "The NHDP version 5 draft.
           Section 5 on Protocol Parameters and
           Constraints."
    ::= { nhdpInterfaceEntry 9 }

    nhdpInitialQuality  OBJECT-TYPE
       SYNTAX      Unsigned32 (0..255)
       UNITS       ""
       MAX-ACCESS  read-write
       STATUS      current
       DESCRIPTION
          "The nhdpInitialQuality is the
           initial quality of a newly
           identified link.

           The following constraint   "
       DEFVAL { TBD }
       REFERENCE
          "The NHDP version 5 draft.
           Section 5 on Protocol Parameters and
           Constraints."
    ::= { nhdpInterfaceEntry 10 }

    -- Note: Probably wnat to move this following object
    -- `nhdpInitialPending' to the State Objects Group.

    nhdpInitialPending  OBJECT-TYPE
       SYNTAX      Unsigned32 (0..255)
       UNITS       ""
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
          "The nhdpInitialPending is defined as
           follows:

           If true, then a newly identified link
           is considered pending, and is not
           usable until the link quality has
           reached or exceeded the
           nhdpHystAccept threshold.




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           The following constraint   "
       DEFVAL { TBD }
       REFERENCE
          "The NHDP version 5 draft.
           Section 5 on Protocol Parameters and
           Constraints."
    ::= { nhdpInterfaceEntry 11 }

    -- Interface Parameters - Jitter

    nhdpHpMaxJitter  OBJECT-TYPE
       SYNTAX      Unsigned32 (0..255)
       UNITS       ""
       MAX-ACCESS  read-write
       STATUS      current
       DESCRIPTION
          "The nhdpHpMaxJitter represents the
           value of MAXJITTER used in [4] for
           periodically generated HELLO messages
           on this MANET interface.

           The following constraint   "
       DEFVAL { nhpdHelloInterval/4 }
       REFERENCE
          "The NHDP version 5 draft.
           Section 5 on Protocol Parameters and
           Constraints."
    ::= { nhdpInterfaceEntry 12 }

    nhdpHtMaxJitter  OBJECT-TYPE
       SYNTAX      Unsigned32 (0..255)
       UNITS       ""
       MAX-ACCESS  read-write
       STATUS      current
       DESCRIPTION
          "The nhdpHtMaxJitter represents the
           value of MAXJITTER used in [4] for
           externally triggered HELLO messages
           on this MANET interface.

           The following constraint   "
       DEFVAL { nhdpHpMaxJitter }
       REFERENCE
          "The NHDP version 5 draft.
           Section 5 on Protocol Parameters and
           Constraints."
    ::= { nhdpInterfaceEntry 13 }




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    -- Node Parameters - Information Validity Time

    nhdpHHoldTime  OBJECT-TYPE
       SYNTAX      Unsigned32 (0..255)
       UNITS       "seconds"
       MAX-ACCESS  read-write
       STATUS      current
       DESCRIPTION
          "The nhdpHHoldTime is used as the period
           during which former 1-hop neighbor
           addresses are advertised as lost in
           HELLO messages, allowing recipients of
           these HELLO messages to accelerate removal
           of information from their 2-Hop Sets.
           N_HOLD_TIME can be set to zero if
           accelerated information removal is not
           required.

           The following constraint
           nhdpHHoldTime >= 0"
       DEFVAL { 2 }
       REFERENCE
          "The NHDP version 5 draft.
           Section 5 on Protocol Parameters and
           Constraints."
    ::= { nhdpInterfaceEntry 14 }

    nhdpIHoldTime  OBJECT-TYPE
       SYNTAX      Unsigned32 (0..255)
       UNITS       "seconds"
       MAX-ACCESS  read-write
       STATUS      current
       DESCRIPTION
          "The nhdpIHoldTime is the period
           for which a recently used local
           interface address is recorded.

           The following constraint
           nhdpIHoldTime >= 0  "
       DEFVAL { nhdpHelloInterval }
       REFERENCE
          "The NHDP version 5 draft.
           Section 5 on Protocol Parameters and
           Constraints."
    ::= { nhdpInterfaceEntry 15 }

    nhdpIfRowStatus  OBJECT-TYPE
       SYNTAX      RowStatus



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       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
          "This
          "
       REFERENCE
          "The NHDP draft."
    ::= { nhdpInterfaceEntry 16 }








 --
 -- nhdpStateObjGrp
 --

 -- Contains information describing the current state of the NHDP
 -- process.

 nhdpStateObjGrp    OBJECT IDENTIFIER ::= { nhdpObjects 3 }

    -- Before building the NHDP Information Bases, we define
    -- two new constructs for indexing into the following
    -- tables and indexing into other tables in other MIBs.
    -- The NeighborIfIndex defines a unique (to the local node)
    -- index referencing a discovered interface on another
    -- node within the NHDP MANET. The NeighborNodeId defines a
    -- unique (to the local node) index referencing a discovered
    -- node within the NHDP MANET.

    -- Note: This table is indexed by an IpAddr associated with
    -- NeighborIfIndex.  Multiple addresses can be associated
    -- with a given NeighborIfIndex.  Each NeighborIfIndex is
    -- associated with a NeighborNodeId.  Throughout this MIB,
    -- the NeighborIfIndex and the NeighborNodeId are used
    -- to define the set of IpAddrs related to the interface
    -- in discussion.

    nhdpDiscIfSetTable OBJECT-TYPE
       SYNTAX       SEQUENCE OF NhdpDiscIfSetEntry
        MAX-ACCESS   not-accessible
        STATUS       current
        DESCRIPTION
           " A node's set of discovered interfaces on



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             neighboring nodes.
           "
        REFERENCE
           "The NHDP draft."
     ::= { nhdpStateObjGrp 1 }

     nhdpDiscIfSetEntry  OBJECT-TYPE
        SYNTAX      NhdpDiscIfSetEntry
        MAX-ACCESS  not-accessible
        STATUS      current
        DESCRIPTION
           "The entries include the nhdpDiscNodeId of
            the discovered node, the nhdpDiscIfIndex
            of the discovered interface and the
            current set of addresses associated
            with this neighbor interface.  The
            nhdpDiscIfIndex has to uniquely identify
            the remote interface address sets.  It
            need not be unique across the MANET.
            It must be unique within this node.

            Note: need to describe how to age out
            the entries in this table?
           "
        REFERENCE
           "This NHDP-MIB draft."
        INDEX { nhdpDiscIfSetIpAddr }
     ::= { nhdpDiscIfSetTable 1 }

     NhdpDiscIfSetEntry ::=
        SEQUENCE {
           nhdpDiscIfSetNodeId
             NeighborNodeId,
           nhdpDiscIfSetIndex
             NeighborIfIndex,
           nhdpDiscIfSetAddrType
             InetAddressType,
           nhdpDiscIfSetIpAddr
             InetAddress,
           nhdpDiscIfSetAddrPrefix
             InetAddrPrefix
          }

    nhdpDiscIfSetNodeId  OBJECT-TYPE
       SYNTAX      NeighborNodeId
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION



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          "The NHDP node ID (locally created)
           of a neigboring node.  Used for cross
           indexing into other NHDP tables and other
           MIBs.
          "
       REFERENCE
          "This NHDP-MIB draft."
    ::= { nhdpDiscIfSetEntry 1 }

    nhdpDiscIfSetIndex  OBJECT-TYPE
       SYNTAX      NeighborIfIndex
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
          "The NHDP interface index (locally created)
           of a neigbor's interface.  Used for cross
           indexing into other NHDP tables and other
           MIBs.
          "
       REFERENCE
          "This NHDP-MIB draft."
    ::= { nhdpDiscIfSetEntry 2 }

    nhdpDiscIfSetAddrType  OBJECT-TYPE
       SYNTAX      InetAddressType
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
          "The type of the ...
           in the InetAddress MIB [RFC 4001]."
       REFERENCE
          "The NHDP draft."
    ::= { nhdpDiscIfSetEntry 3 }

    nhdpDiscIfSetIpAddr  OBJECT-TYPE
       SYNTAX      InetAddress
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
          "The nhdpDiscIfSetIpAddr is a
           recently used address of a neighbor
           of this node.
          "
       REFERENCE
          "The NHDP draft."
    ::= { nhdpDiscIfSetEntry 4 }

    nhdpDiscIfSetAddrPrefixLen  OBJECT-TYPE



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       SYNTAX      InetAddressPrefixLength
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
          "Indicates the number of leading one bits that form the
           mask to be logical-ANDed with the destination address
           before being compared to the value in the
           nhdpDiscIfSetAddr field.  If the resulting
           address block is contained in a block in this
           table, then a match should be returned.
           "
       REFERENCE
          "The NHDP draft."
    ::= { nhdpDiscIfSetEntry 5 }




    -- An NHDP node's Local Information Base (LIB)

       -- Local IF Set Table
       -- Entry (foreach IF): (IfAddrList,
       --                      PrefixMask,
       --                      Manet_indication)
       --
       -- Note:  This table is redundant with information in
       -- the nhdpIfTable above.  Hence it is not present here.




       -- Removed Addr Set Table
       -- Entry (foreach Addr): (IfAddrRemoved,
       --                        ExpirationTime)

     nhdpLibRemovedAddrSetTable OBJECT-TYPE
        SYNTAX       SEQUENCE OF NhdpLibRemovedAddrSetEntry
        MAX-ACCESS   not-accessible
        STATUS       current
        DESCRIPTION
           " A node's Removed Addr Set Table ...
           "
        REFERENCE
           "The NHDP draft."
     ::= { nhdpStateObjGrp 2 }

     nhdpLibRemovedAddrSetEntry  OBJECT-TYPE
        SYNTAX      NhdpRemovedAddrSetEntry



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        MAX-ACCESS  not-accessible
        STATUS      current
        DESCRIPTION
           "The entries include the
            removed addresses and their expiration
            time from this table.

            The association between these addrs and
            the node's Interface is found in the
            Standard MIB II's IP addr table
            (RFC1213).
           "
        REFERENCE
           "The NHDP draft."
        INDEX { nhdpLibRemovedAddrSetAddr }
     ::= { nhdpLibRemovedAddrSetTable 1 }

     NhdpLibRemovedAddrSetEntry ::=
        SEQUENCE {
           nhdpLibRemovedAddrSetAddrType
             InetAddressType,
           nhdpLibRemovedAddrSetAddr
             InetAddress,
           nhdpLibRemovedAddrSetAddrPrefix
             InetAddrPrefix,
           nhdpLibRemovedAddrSetIfIndex
             IfIndex,
           nhdpLibRemovedAddrSetIrTime
             Unsigned32
          }

    nhdpLibRemovedAddrSetAddrType  OBJECT-TYPE
       SYNTAX      InetAddressType
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
          "The type of the ...
           in the InetAddress MIB [RFC 4001]."
       REFERENCE
          "The NHDP draft."
    ::= { nhdpLibRemovedAddrSetEntry 1 }

    nhdpLibRemovedAddrSetAddr  OBJECT-TYPE
       SYNTAX      InetAddress
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
          "The nhdpLibRemovedAddrSetAddr is a



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           recently used address of an interface of
           this node."
       REFERENCE
          "The NHDP draft."
    ::= { nhdpLibRemovedAddrSetEntry 2 }

    nhdpLibRemovedAddrSetAddrPrefixLen  OBJECT-TYPE
       SYNTAX      InetAddressPrefixLength
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
          "Indicates the number of leading one bits that form the
           mask to be logical-ANDed with the address
           to determine the network address to which
           this interface is attached.
           "
       REFERENCE
          "The NHDP draft."
    ::= { nhdpLibRemovedAddrSetEntry 3 }

    -- Note: need to identify a time type for the
    -- nhdpRemoveAddrSetIrTime.

      nhdpLibRemovedAddrSetIfIndex  OBJECT-TYPE
         SYNTAX      IfIndex
         MAX-ACCESS  read-only
         STATUS      current
         DESCRIPTION
            "Specifies the local IfIndex from which this
             Ip addr was re4cently removed.
            "
         REFERENCE
            "The NHDP draft."
      ::= { nhdpLibRemovedAddrSetEntry 4 }

      nhdpLibRemovedAddrSetIrTime  OBJECT-TYPE
         SYNTAX      Unsigned32
         MAX-ACCESS  read-only
         STATUS      current
         DESCRIPTION
            "Specifies when this Tuple expires and MUST be removed
             from this table.
            "
         REFERENCE
            "The NHDP draft."
      ::= { nhdpLibRemovedAddrSetEntry 5 }





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    -- Interface Information Base (IIB)

    --
    -- NHDP Interface Information Base (IIB)
    --

    --     IIB Link Set
    --         Entry (foreach 1-H neighbor): (NeighborAddrList,
    --                                        HeardTime,
    --                                        SymTime,
    --                                        Quality,
    --                                        Pending,
    --                                        Lost,
    --                                        ExpireTime)

    nhdpIibLinkSetTable OBJECT-TYPE
       SYNTAX       SEQUENCE OF NhdpIibLinkSetEntry
       MAX-ACCESS   not-accessible
       STATUS       current
       DESCRIPTION
          " A node's Link Set records links from
            other nodes which are, or recently
            were, 1-hop neighbors.  It consists
            of Link Tuples, each representing a
            single link:

            (L_neighbor_iface_addr_list, L_HEARD_time,
             L_SYM_time, L_quality, L_pending,
             L_lost, L_time).
          "
       REFERENCE
          "The NHDP draft."
    ::= { nhdpStateObjGrp 3 }

     nhdpIibLinkSetEntry  OBJECT-TYPE
        SYNTAX      NhdpIibLinkSetEntry
        MAX-ACCESS  not-accessible
        STATUS      current
        DESCRIPTION
           "The entries include ...
           "
        REFERENCE
           "This NHDP-MIB draft."
        INDEX { nhdpIibLinkSet1HopIfIndex }
     ::= { nhdpIibLinkSetTable 1 }

     NhdpIibLinkSetEntry ::=
        SEQUENCE {



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           nhdpIibLinkSet1HopIfIndex
             NeighborIfIndex,
           nhdpIibLinkSetIfIndex
             IfIndex,
           nhdpIibLinkSetLHeardTime
             Unsigned32,
           nhdpIibLinkSetLSymTime
             Unsigned32,
           nhdpIibLinkSetLQuality
             Unsigned32,
           nhdpIibLinkSetLPending
             TruthValue
          }

    nhdpIibLinkSet1HopIfIndex  OBJECT-TYPE
       SYNTAX      NeighborIfIndex
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
          "The nhdpIibLinkSet1HopIfIndex is
           the value of the NeighborIfIndex (from
           table 'xxx' above).  This object
           is repeated here to support table
           walks to view the set of neighbors
           of this node.
          "
       REFERENCE
          "The NHDP draft."
    ::= { nhdpIibLinkSetEntry 1 }

    nhdpIibLinkSetIfIndex  OBJECT-TYPE
       SYNTAX      IfIndex
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
          "The nhdpIibLinkSetIfIndex is
           is the local node's interface
           index associated with the symmetric
           link to this entries neighbor
           interface.

           The IP addr set associated with this
           neighbor's interface is found in the
           'nhdpDiscIfSetTable' above.
          "
       REFERENCE
          "The NHDP draft."
    ::= { nhdpIibLinkSetEntry 2 }



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    nhdpIibLinkSetLHeardTime  OBJECT-TYPE
       SYNTAX      Unsigned32
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
          "The nhdpIibLinkSetLHeardTime is
           the time until which the MANET
           interface of the 1-hop neighbor
           would be considered heard if not
           considering link quality.
          "
       REFERENCE
          "The NHDP draft."
    ::= { nhdpIibLinkSetEntry 3 }

    nhdpIibLinkSetLSymTime  OBJECT-TYPE
       SYNTAX      Unsigned32
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
          "The nhdpIibLinkSetLSymTime is the
           time until which the link to the
           1-hop neighbor would be considered
           symmetric if not considering link
           quality.
          "
       REFERENCE
          "The NHDP draft."
    ::= { nhdpIibLinkSetEntry 4 }

    nhdpIibLinkSetLQuality  OBJECT-TYPE
       SYNTAX      Unsigned32
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
          "The nhdpIibLinkSetLQuality is a
           dimensionless number between 0
           (inclusive) and 1 (inclusive)
           describing the quality of a link;
           a greater value of L_quality
           indicating a higher quality link.
          "
       REFERENCE
          "The NHDP draft."
    ::= { nhdpIibLinkSetEntry 5 }

    nhdpIibLinkSetLPending  OBJECT-TYPE
       SYNTAX      TruthValue



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       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
          "The nhdpIibLinkSetLPending is a
           boolean flag, describing if a
           link is considered pending (i.e.,
           a candidate, but not yet
           established, link).
          "
       REFERENCE
          "The NHDP draft."
    ::= { nhdpIibLinkSetEntry 6 }

    nhdpIibLinkSetLLost  OBJECT-TYPE
       SYNTAX      TruthValue
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
          "The nhdpIibLinkSetLLost is a
           boolean flag, describing if a
           link is considered lost due
           to link quality.
          "
       REFERENCE
          "The NHDP draft."
    ::= { nhdpIibLinkSetEntry 7 }

    -- Note: need to locate a time type for this object
    nhdpIibLinkSetLTime  OBJECT-TYPE
       SYNTAX      Unsigned32
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
          "The nhdpIibLinkSetLTime specifies
           when this Tuple expires and MUST
           be removed.
          "
       REFERENCE
          "The NHDP draft."
    ::= { nhdpIibLinkSetEntry 8 }





   --
   --     IIB 2-Hop Set
   --         Entry (foreach IF on a 2-H neighbor):



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   --                                 (1NeighIfAddrList,
   --                                  2NeighIfAddr,
   --                                  ExpireTime)

     nhdpIib2HopSetTable OBJECT-TYPE
        SYNTAX       SEQUENCE OF NhdpIib2HopSetEntry
        MAX-ACCESS   not-accessible
        STATUS       current
        DESCRIPTION
           " A node's 2-Hop Set records symmetric
             2-hop neighbors, and the symmetric links
             to symmetric 1-hop neighbors through
             which the symmetric 2-hop neighbors
             can be reached.  It consists of 2-Hop
             Tuples, each representing a single
             interface address of a symmetric
             2-hop neighbor, and a single MANET
             interface of a symmetric 1-hop
             neighbor, i.e.,

            (N2_neighbor_iface_addr_list,
             N2_2hop_iface_addr, N2_time).
           "
        REFERENCE
           "The NHDP draft."
     ::= { nhdpStateObjGrp 4 }

     nhdpIib2HopSetEntry  OBJECT-TYPE
        SYNTAX      NhdpIib2HopSetEntry
        MAX-ACCESS  not-accessible
        STATUS      current
        DESCRIPTION
           "The entries include the 2 hop neighbor addrs,
            which act as the table index, and associated
            1 hop symmetric link addr set, designated through
            the nhdpDiscIfIndex, and ...
           "
        REFERENCE
           "This NHDP-MIB draft."
        INDEX { nhdpIib2HopSetIpAddr }
     ::= { nhdpIib2HopSetTable 1 }

     NhdpIib2HopSetEntry ::=
        SEQUENCE {
           nhdpIib2HopSetAddrType
             InetAddressType,
           nhdpIib2HopSetAddress
             InetAddress,



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           nhdpIib2HopSet1HopIfIndex
             NeighborIfIndex,
           nhdpIib2HopSetN2Time
             Unsigned32
          }


    nhdpIib2HopSetAddrType  OBJECT-TYPE
       SYNTAX      InetAddressType
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
          "The type of the ...
           in the InetAddress MIB [RFC 4001]."
       REFERENCE
          "The NHDP draft."
    ::= { nhdpIib2HopSetEntry 1 }

    nhdpIib2HopSetIpAddr  OBJECT-TYPE
       SYNTAX      InetAddress
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
          "The nhdpIib2HopSetIpAddr is an
           address of an interface of a symmetric
           2-hop neighbor which has a symmetric
           link (using any MANET interface) to
           the indicated symmetric 1-hop neighbor.
          "
       REFERENCE
          "The NHDP draft."
    ::= { nhdpIib2HopSetEntry 2 }

    nhdpIib2HopSet1HopIfIndex  OBJECT-TYPE
       SYNTAX      NeighborIfIndex
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
          "The nhdpIib2HopSet1HopIfIndex is
           NeighborIfIndex of the one hop
           neighbor which communicated the ipAddress
           of the 2 hop neighbor in this row entry.
          "
       REFERENCE
          "The NHDP draft."
    ::= { nhdpIib2HopSetEntry 3 }

    -- Note: need to get a time type for this object.



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    nhdpIib2HopSetN2Time  OBJECT-TYPE
       SYNTAX      Unsigned32
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
          "The nhdpIib2HopSetN2Time specifies
           when this column entry expires and
           MUST be removed.
          "
       REFERENCE
          "The NHDP draft."
    ::= { nhdpIibLinkSetEntry 4 }




    --
    -- Node Information Base (NIB)
    --
    -- Each node maintains a Node Information Base
    -- that records information about addresses of
    -- current and recently symmetric 1-hop neighbors.
    --
    -- All addresses MUST have an associated prefix
    -- length.  Prefix lengths are indicated in HELLO
    -- messages as specified in [1]; if an address
    -- has no specified prefix length, then its prefix
    -- length is equal to the address length.  Two
    -- addresses are considered equal if and only
    -- if their associated prefix lengths are also equal.



    --     NIB Neighbor Set
    --         Entry (foreach 1-H Neighbor):
    --              (AllIfAddrListOfIhNeighbor,
    --               SymmetricIndicator)
    --     The NIB Neighbor Set Table is small because
    --     most of the corresponding information is found
    --     in the nhdpDiscoveredIfTable above.

    nhdpNibNeighborSetTable OBJECT-TYPE
       SYNTAX       SEQUENCE OF NhdpNibNeighborSetEntry
       MAX-ACCESS   not-accessible
       STATUS       current
       DESCRIPTION
          " A node's Neighbor Set records all
            interface addresses of each 1-hop



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            neighbor.  It consists of Neighbor
            Tuples, each representing a single
            1-hop neighbor:

            (N_neighbor_iface_addr_list,
             N_symmetric)
          "
       REFERENCE
          "The NHDP draft."
    ::= { nhdpStateObjGrp 5 }

    nhdpNibNeighborSetEntry  OBJECT-TYPE
       SYNTAX      NhdpNibNeighborSetEntry
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
          "The entries include ...
          "
       REFERENCE
          "This NHDP-MIB draft."
       INDEX { nhdpNibNeighborSetNodeId }
    ::= { nhdpNibNeighborSetTable 1 }

     NhdpNibNeighborSetEntry ::=
        SEQUENCE {
           nhdpNibNeighborSetNodeId
             NeighborNodeId,
           nhdpNibNeighborSetNSymmetric
             TruthValue
          }

    nhdpNibNeighborSetNodeId  OBJECT-TYPE
       SYNTAX      NeighborNodeId
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
          "The nhdpNibNeighborSetNodeId is
           the NeighborNodeId of a one hop
           neighbor to this node.  It must also
           exist in the 'nhdpDiscSetTable'
           allowing the manager to determine
           the set of Ip addr's associated
           with the NeighborNodeId in this row.
          "
       REFERENCE
          "The NHDP draft."
    ::= { nhdpNibNeighborSetEntry 1 }




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    nhdpNibNeighborSetNSymmetric  OBJECT-TYPE
       SYNTAX      TruthValue
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
          "The nhdpNibNeighborNSymmetric is
           a boolean flag, describing if this
           is a symmetric 1-hop neighbor.
          "
       REFERENCE
          "The NHDP draft."
    ::= { nhdpNibNeighborSetEntry 2 }



   --     Lost Neighbor Set
   --         Entry ( foreach IF foreach 1-H Neighbor): (IfAddr,
   --                                                    ExpireTime)

     nhdpNibLostNeighborSetTable OBJECT-TYPE
        SYNTAX       SEQUENCE OF NhdpNibLostNeighborSetEntry
        MAX-ACCESS   not-accessible
        STATUS       current
        DESCRIPTION
           " A node's Lost Neighbor Set records all
             interface addresses of each 1-hop
             neighbor recently advertised as lost.
             It consists of Neighbor
             Tuples, each representing a single
             1-hop neighbor:

             (NL_neighbor_iface_addr_list,
              NL_time)
           "
        REFERENCE
           "The NHDP draft."
     ::= { nhdpStateObjGrp 6 }

     nhdpNibLostNeighborSetEntry  OBJECT-TYPE
        SYNTAX      NhdpNibLostNeighborSetEntry
        MAX-ACCESS  not-accessible
        STATUS      current
        DESCRIPTION
           "The entries include ...
           "
        REFERENCE
           "This NHDP-MIB draft."
        INDEX { nhdpNibLostNeighborSetNodeId }



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     ::= { nhdpNibLostNeighborSetTable 1 }

     NhdpNibNeighborSetEntry ::=
        SEQUENCE {
           nhdpNibLostNeighborSetNodeId
             NeighorNodeId,
           nhdpNibLostNeighborSetNLTime
             Unsigned32
          }

    nhdpNibLostNeighborSetNodeId  OBJECT-TYPE
       SYNTAX      NeighborNodeId
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
          "The nhdpNibLostNeighborSetNodeId is
           the NeighborNodeId of a one hop
           neighbor to this node which was
           recently lost.  It must also
           exist in the 'nhdpDiscSetTable'
           allowing the manager to determine
           the set of Ip addr's associated
           with the NeighborNodeId in this row.
          "
       REFERENCE
          "The NHDP draft."
    ::= { nhdpNibLostNeighborSetEntry 1 }


    -- Note: need to fime time type for this object
    nhdpNibLostNeighborSetNLTime  OBJECT-TYPE
       SYNTAX      Unsigned32
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
          "The nhdpNibLostNeighborSetNLTime
           specifies when this Tuple expires
           and MUST be removed.
          "
       REFERENCE
          "The NHDP draft."
    ::= { nhdpNibLostNeighborSetEntry 2 }





 --



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 -- nhdpPerformanceObjGrp
 --

 -- Contains objects which help to characterize the performance of
 -- the NHDP process, typically counters.

 nhdpPerformanceObjGrp OBJECT IDENTIFIER ::= { nhdpObjects 4 }

   -- Note: Insert proposed objects here.
   --
   -- For each NHDP IF - Hello messg sent and rec,
   --                    Do we want rec's per DiscoveredIfs?
   -- For each NHDP IF - TLVs sent and rec (e.g.,
   --                    VALIDITY_TIME,
   --                    INTERVAL_TIME,
   --                    address block,
   --                    LINK_STATUS,
   --                    OTHER_NEIGHB
   -- For each 'link' - number link quality transitions from
   --                   up to down




 --
 -- nhdpNotifications
 --

   -- Note: What are the valuable notification information for the
   -- NHDP-MIB?





 --
 -- nhdpConformance information
 --

 -- Note: To be determined.

 nhdpCompliances       OBJECT IDENTIFIER ::= { nhdpConformance 1 }
 nhdpGroups            OBJECT IDENTIFIER ::= { nhdpConformance 2 }


 -- Compliance Statements
 nhdpGeneralCompliance MODULE-COMPLIANCE
   STATUS current



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   DESCRIPTION
     "A general compliance which allows ...."
   MODULE -- this module

   MANDATORY-GROUPS { nhdpGeneralGroup }

   ::= { nhdpCompliances 1 }

 --
 -- NHDP MIB Group Compliance
 --

 --
 -- Groups
 --

 END

8.  Security Considerations

   [TODO] Each specification that defines one or more MIB modules MUST
   contain a section that discusses security considerations relevant to
   those modules.  This section MUST be patterned after the latest
   approved template (available at
   http://www.ops.ietf.org/mib-security.html).  Remember that the
   objective is not to blindly copy text from the template, but rather
   to think and evaluate the risks/vulnerabilities and then state/
   document the result of this evaluation.

   [TODO] if you have any read-write and/or read-create objects, please
   include the following boilerplate paragraph.

   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
   network operations.  These are the tables and objects and their
   sensitivity/vulnerability:

   o  [TODO] writable MIB objects that could be especially disruptive if
      abused MUST be explicitly listed by name and the associated
      security risks MUST be spelled out; RFC 2669 has a very good
      example.

   o  [TODO] list the writable tables and objects and state why they are
      sensitive.




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   [TODO] else if there are no read-write objects in your MIB module,
   use the following boilerplate paragraph.

   There are no management objects defined in this MIB module that have
   a MAX-ACCESS clause of read-write and/or read-create.  So, if this
   MIB module is implemented correctly, then there is no risk that an
   intruder can alter or create any management objects of this MIB
   module via direct SNMP SET operations.

   [TODO] if you have any sensitive readable objects, please include the
   following boilerplate paragraph.

   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 and/or NOTIFY 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  [TODO] you must explicitly list by name any readable objects that
      are sensitive or vulnerable and the associated security risks MUST
      be spelled out (for instance, if they might reveal customer
      information or violate personal privacy laws such as those of the
      European Union if exposed to unauthorized parties)

   o  [TODO] list the tables and objects and state why they are
      sensitive.

   [TODO] discuss what security the protocol used to carry the
   information should have.  The following three boilerplate paragraphs
   should not be changed without very good reason.  Changes will almost
   certainly require justification during IESG review.

   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



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   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.

9.  IANA Considerations

   [TODO] In order to comply with IESG policy as set forth in
   http://www.ietf.org/ID-Checklist.html, every Internet-Draft that is
   submitted to the IESG for publication MUST contain an IANA
   Considerations section.  The requirements for this section vary
   depending what actions are required of the IANA. see RFC4181 section 
   3.5 for more information on writing an IANA clause for a MIB module
   document.

   [TODO] select an option and provide the necessary details.

   Option #1:


        The MIB module in this document uses the following IANA-assigned
        OBJECT IDENTIFIER values recorded in the SMI Numbers registry:

        Descriptor        OBJECT IDENTIFIER value
        ----------        -----------------------

        sampleMIB  { mib-2 XXX }

   Option #2:

   Editor's Note (to be removed prior to publication): the IANA is
   requested to assign a value for "XXX" under the 'mib-2' subtree and
   to record the assignment in the SMI Numbers registry.  When the
   assignment has been made, the RFC Editor is asked to replace "XXX"
   (here and in the MIB module) with the assigned value and to remove
   this note.

   Note well: prior to official assignment by the IANA, a draft document
   MUST use placeholders (such as "XXX" above) rather than actual
   numbers.  See RFC4181 Section 4.5 for an example of how this is done
   in a draft MIB module.

   Option #3:

   This memo includes no request to IANA.






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10.  Contributors

   This MIB document uses the template authored by D. Harrington which
   is based on contributions from the MIB Doctors, especially Juergen
   Schoenwaelder, Dave Perkins, C.M.Heard and Randy Presuhn.

11.  Acknowledgements

   [TODO]This acknowledgement can be removed from your MIB module
   document.

12.  References

12.1.  Normative References

   [RFC2863]  McCloghrie, K. and F. Kastenholz, "The Interfaces Group
              MIB", RFC 2863, June 2000.

   [RFC3418]  Presuhn, R., "Management Information Base (MIB) for the
              Simple Network Management Protocol (SNMP)", STD 62,
              RFC 3418, December 2002.

   [RFC2119]  Bradner, S., "Key words for use in RFCs to Indicate
              Requirement Levels", BCP 14, RFC 2119, March 1997.

   [RFC2578]  McCloghrie, K., Ed., Perkins, D., Ed., and J.
              Schoenwaelder, Ed., "Structure of Management Information
              Version 2 (SMIv2)", STD 58, RFC 2578, April 1999.

   [RFC2579]  McCloghrie, K., Ed., Perkins, D., Ed., and J.
              Schoenwaelder, Ed., "Textual Conventions for SMIv2",
              STD 58, RFC 2579, April 1999.

   [RFC2580]  McCloghrie, K., Perkins, D., and J. Schoenwaelder,
              "Conformance Statements for SMIv2", STD 58, RFC 2580,
              April 1999.

12.2.  Informative References

   [RFC3410]  Case, J., Mundy, R., Partain, D., and B. Stewart,
              "Introduction and Applicability Statements for Internet-
              Standard Management Framework", RFC 3410, December 2002.

Appendix A.  Change Log

   Here we list the changes made to the various drafts of this MIB.

   We list here the changes made on the draft-cole-manet-nhdp-mib-00



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   draft to generate the draft-cole-manet-nhdp-mib-01 draft.

   1.  Defined the NeighborIfIndex and the NeighborNodeId textual
       conventions.  These identify a remote neighbor IfIndex and a
       remote neighbor node and are used as indexes into NHDP state
       tables.  These constructs were necessary in order to associate
       address lists with specific remote interfaces as required by the
       NHDP protocol specification.

   2.  Developed the nhdpInterfaceTable as part of the configuration
       group.

   3.  Developed the nhdpDiscIfSetTable as a means to associate address
       lists with remotely discovered neighbor interfaces.

   4.  Added tables defining the node's NHDP Local Information Base
       (LIB) as specified in the NHPD protocol specification.

   5.  Added tables defining the node's NHDP Interface information Base
       (IIB) as specified in the NHPD protocol specification.

   6.  Added tables defining the node's NHDP Node Information Base (NIB)
       as specified in the NHPD protocol specification.

   7.  Aligned the NHDP-MIB and the OLSRv2-MIB configuration tables and
       indexing.

Appendix B.  Open Issues

   This section contains the set of open issues related to the
   development and design of the NHDP-MIB.  This section will not be
   present in the final version of the MIB and will be removed once all
   the open issues have been resolved.

   1.   How to handle dynamic parameters within NHDP?  Should we expose
        setting, min and max values?

   2.   Need to address how to handle Link Quality settings and
        parameters for a) optional operation and b) changing nature of
        link quality.

   3.   What performance objects are of interest and utility?

   4.   What notifications are of interest and utility?

   5.   Identify all objects requiring non-volatile storage in their
        DESCRIPTION clauses.




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   6.   Incorporate parameter relationship conditions into their
        DESCRIPTION clauses.

   7.   Also, specify specific SNMP response to the snmp set request,
        i.e., 'generic error', 'bad value', etc.

   8.   Fill in all of the DEFVAL within the configuration group
        objects.

   9.   Run through the MIB checker.

   10.  Clean up all of the 'Note:' statements within the body of the
        MIB.

   11.  Work on the Security Section.  This MIB does have settable
        objects, but not sensitive objects (true?).

   12.  Work on the relationship to other MIBs, IF-MIB, NHDP-MIB.

   13.  Cleanup all the [TODOs] from the MIB template.

Appendix C.


   ***************************************************************
   * Note to the RFC Editor (to be removed prior to publication) *
   *                                                             *
   * 1) The reference to RFCXXXX within the DESCRIPTION clauses  *
   * of the MIB module point to this draft and are to be         *
   * assigned by the RFC Editor.                                 *
   *                                                             *
   * 2) The reference to RFCXXX2 throughout this document point  *
   * to the current draft-cole-manet-nhdp-xx.txt.  This          *
   * need to be replaced with the XXX RFC number.                *
   *                                                             *
   ***************************************************************















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Authors' Addresses

   Robert G. Cole
   Johns Hopkins University
   11100 Johns Hopkins Road, Room 257
   Laurel, Maryland  21073
   USA

   Phone: +1 443 778 6951
   EMail: robert.cole@jhuapl.edu
   URI:   http://www.cs.jhu.edu/~rgcole/


   Ian D Chakeres
   CenGen
   9250 Bendix Road North
   Columbia, Maryland  560093
   USA

   EMail: ian.chakeres@gmail.com
   URI:   http://www.ianchak.com/






























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