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    Monitoring DVMRP Information for a Virtual Router

    Purpose

    Display DVMRP information for a VR.

    Action

    To display DVMRP information for a VR:

    host1:boston>show ip dvmrp
    Routing Process DVMRP - Distance Vector Multicast Routing Protocol
      Dvmrp Administrative State:         Enabled
      Multicast Administrative State:     Enabled
      Dvmrp Version:                      3.255
      Generation ID:                      0x46828e2b
      Number of Routes:                   2
      Number of Triggered Routes:         0
      Reachable Routes:                   2
      route-hog-notification:             10000
      route-limit:                        7000
      Send-S32-Prunes-Only:               true
      unicastRoutingOnly:                 false
      Graceful Restart Duration:          60
      Graceful Restart is:                complete (timer 0 seconds)
      Redistribution                      None Configured
      dynamic-redistribution:             enabled 

    Meaning

    Table 1 lists the show ip dvmrp command output fields.

    Table 1: show ip dvmrp Output Fields

    Field

    Description

    Dvmrp Administrative State

    State of DVMRP in the software: Enabled or Disabled

    Mcast Administrative State

    State of multicasting in the software: Enabled or Disabled

    Dvmrp Version

    Version of DVMRP with which this software is compatible

    GenerationID

    A number the router generates each time it reboots; when the number changes, neighbors discard all information previously learned from the router

    Number of Routes

    Number of routes in the DVMRP routing table

    Number of Triggered Routes

    Number of routes waiting to be advertised, because a parameter for the route changed

    Reachable Routes

    Number of routes that the router can currently reach

    Route-hog-notification

    Number of DVMRP routes that the router can record before it generates a system log warning message

    Route-limit

    Maximum number of routes that the router can advertise on each interface

    Send-S32-Prunes-Only

    Indicator of whether the router sends only S-32 prunes

    true

    Router sends only S-32 prunes and grafts to ensure compatibility with other protocols, such as PIM

    false

    Router sends S-32 and S/Prefix grafts and prunes

     

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    Published: 2014-08-19