25.12 SNMP Version 2

25.12 SNMP Version 2

During 1993 11 RFCs were published defining revisions to SNMP. The first of these, RFC 1441 [Case et al. 1993], provides an introduction to SNMP Version 2 (SNMPv2). Two books also describe SNMPv2 [Stallings 1993; Rose 1994]. Two publicly available implementations already exist (see Appendix B.3 of [Rose 1994]), but vendor implementations probably won't be widely available until 1994.

In this section we describe the major differences from SNMPv1 to SNMPv2.

  1. A new packet type get-bulk-request allows the manager to retrieve large blocks of data efficiently .

  2. Another new packet type inform -request allows one manager to send information to another manager.

  3. Two new MIBs are defined: the SNMPv2 MIB and the SNMPv2-M2M MIB (Manager-to-Manager).

  4. SNMPv2 provides security enhancements over SNMPv1. In SNMPv1 the community name passed from the manager to the agent is a cleartext password. SNMPv2 can provide authentication and privacy.

As vendors start to provide SNMPv2-capable agents , management stations will also appear that can handle both. [Routhier 1993] describes extending an implementation of SNMPv1 to support SNMPv2.



TCP.IP Illustrated, Volume 1. The Protocols
TCP/IP Illustrated, Vol. 1: The Protocols (Addison-Wesley Professional Computing Series)
ISBN: 0201633469
EAN: 2147483647
Year: 1993
Pages: 378

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