Message Processing and Dispatching for the Simple Network Management Protocol (SNMP)
RFC 2572
| Document | Type |
RFC - Draft Standard
(April 1999; No errata)
Obsoleted by RFC 3412
Obsoletes RFC 2272
|
|
|---|---|---|---|
| Last updated | 2013-03-02 | ||
| Stream | IETF | ||
| Formats | plain text pdf htmlized bibtex | ||
| Stream | WG state | (None) | |
| Document shepherd | No shepherd assigned | ||
| IESG | IESG state | RFC 2572 (Draft Standard) | |
| Consensus Boilerplate | Unknown | ||
| Telechat date | |||
| Responsible AD | (None) | ||
| Send notices to | (None) | ||
Network Working Group J. Case
Request for Comments: 2572 SNMP Research Inc.
Obsoletes: 2272 D. Harrington
Category: Standards Track Cabletron Systems, Inc.
R. Presuhn
BMC Software, Inc.
B. Wijnen
IBM T. J. Watson Research
April 1999
Message Processing and Dispatching for the
Simple Network Management Protocol (SNMP)
Status of this Memo
This document specifies an Internet standards track protocol for the
Internet community, and requests discussion and suggestions for
improvements. Please refer to the current edition of the "Internet
Official Protocol Standards" (STD 1) for the standardization state
and status of this protocol. Distribution of this memo is unlimited.
Copyright Notice
Copyright (C) The Internet Society (1999). All Rights Reserved.
Abstract
This document describes the Message Processing and Dispatching for
SNMP messages within the SNMP architecture [RFC2571]. It defines the
procedures for dispatching potentially multiple versions of SNMP
messages to the proper SNMP Message Processing Models, and for
dispatching PDUs to SNMP applications. This document also describes
one Message Processing Model - the SNMPv3 Message Processing Model.
Table of Contents
1. Introduction ................................................ 3
2. Overview .................................................... 3
2.1. The Dispatcher. .......................................... 5
2.2. Message Processing Subsystem .............................. 5
3. Elements of Message Processing and Dispatching .............. 5
3.1. messageProcessingModel .................................... 6
3.2. pduVersion ................................................ 6
3.3. pduType ................................................... 7
3.4. sendPduHandle ............................................. 7
4. Dispatcher Elements of Procedure ............................ 7
4.1. Sending an SNMP Message to the Network .................... 7
SNMPv3 Working Group Standards Track [Page 1]
RFC 2572 Message Processing and Dispatching April 1999
4.1.1. Sending a Request or Notification ....................... 7
4.1.2. Sending a Response to the Network ....................... 9
4.2. Receiving an SNMP Message from the Network ................ 11
4.2.1. Message Dispatching of received SNMP Messages ........... 11
4.2.2. PDU Dispatching for Incoming Messages ................... 12
4.2.2.1. Incoming Requests and Notifications ................... 12
4.2.2.2. Incoming Responses .................................... 14
4.3. Application Registration for Handling PDU types ........... 15
4.4. Application Unregistration for Handling PDU Types ......... 16
5. Definitions ................................................. 16
5.1. Definitions for SNMP Message Processing and Dispatching ... 16
6. The SNMPv3 Message Format ................................... 20
6.1. msgVersion ................................................ 21
6.2. msgID ..................................................... 21
6.3. msgMaxSize ................................................ 21
6.4. msgFlags .................................................. 22
6.5. msgSecurityModel .......................................... 24
6.6. msgSecurityParameters ..................................... 24
6.7. scopedPduData ............................................. 24
6.8. scopedPDU ................................................. 25
6.8.1. contextEngineID ......................................... 25
6.8.2. contextName ............................................. 25
6.8.3. data .................................................... 25
7. Elements of Procedure for v3MP .............................. 25
7.1. Prepare an Outgoing SNMP Message .......................... 36
7.2. Prepare Data Elements from an Incoming SNMP Message ....... 31
8. Intellectual Property ....................................... 37
9. Acknowledgements ............................................ 37
10. Security Considerations .................................... 39
11. References ................................................. 40
12. Editors' Addresses ......................................... 41
13. Changes From RFC 2272 ...................................... 42
14. Full Copyright Statement ................................... 44
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