RFC 2787 (rfc2787) - Page 3 of 31

Definitions of Managed Objects for the Virtual Router Redundancy Protocol

RFC 2787              VRRP MIB Management Objects             March 2000


   o A set of fundamental applications described in RFC 2573 [14] and
     the view-based access control mechanism described in RFC 2575 [15].

   A more detailed introduction to the current SNMP Management Framework
   can be found in RFC 2570 [16].

   Managed objects are accessed via a virtual information store, termed
   the Management Information Base or MIB.  Objects in the MIB are
   defined using the mechanisms defined in the SMI.

   This memo specifies a MIB module that is compliant to the SMIv2. A
   MIB conforming to the SMIv1 can be produced through the appropriate
   translations. The resulting translated MIB must be semantically
   equivalent, except where objects or events are omitted because no
   translation is possible (use of Counter64). Some machine readable
   information in SMIv2 will be converted into textual descriptions in
   SMIv1 during the translation process. However, this loss of machine
   readable information is not considered to change the semantics of the
   MIB.

2.  Overview

   This memo identifies the set of objects for configuring, monitoring,
   and controlling the Virtual Router Redundancy Protocol (VRRP), as
   defined in RFC 2338 [17].

   VRRP specifies an election protocol that will allow one or more
   associated IP addresses to be assumed by another router in the event
   of a failure of the IP address(es) owner. Thus, IP traffic from a
   host using a failed router as a default gateway is transparently
   fowarded by the VRRP router that has assumed control.  VRRP provides
   redundancy in routed networks without requiring configuration of
   dynamic routing or router discovery protocols on every end-host.

   Since the VRRP protocol is intended for use with IPv4 routers only,
   this MIB uses the SYNTAX for IP addresses which is specific to IPv4.
   Thus, changes will be required for this MIB to interoperate in an
   IPv6 environment.

2.1.  VRRP MIB Structure

   The VRRP MIB contains three conformance groups:

   - vrrpOperations Group: Objects related to VRRP router's
     configuration and control.

   - vrrpStatistics Group: Objects containing information useful in
     monitoring the operation of VRRP routers.



Jewell & Chuang             Standards Track