Monitoring DVMRP Multicast Groups

Purpose

Display information about DVMRP routes to multicast groups.

Action

To display information about DVMRP routes to multicast groups:

host1:boston#show ip dvmrp mroute
IP DVMRP Multicast Routing Table
(40.0.0.0/16,  228.1.1.1)  Uptime: 77
  Upstream Prune: none
  RPF Interface
      atm5/0.40
  Outgoing interface list:
      atm5/0.31 

Meaning

Table 45 lists the show ip dvmrp mroute command output fields.

Table 45: show ip dvmrp mroute Output Fields

Field

Description

(S,G) pair

Source, Group pair value

Uptime

Time, in seconds, that this (S, G) pair entry has been in the routing table

Upstream Prune

Whether the router has sent prune messages for this group

RPF Interface

Interface that provides the shortest path back to the source

Outgoing interface list

Types and specifiers of interfaces through which the VR forwards DVMRP messages, such as atm3/0. For details about interface types and specifiers, see Interface Types and Specifiers in JunosE Command Reference Guide.

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