Monitoring DVMRP Neighbors

Purpose

Display information about DVMRP neighbors. Specify the brief keyword to view a summary of information.

Action

To display information about DVMRP neighbors:

host1:boston# show ip dvmrp neighbor
Neighbor Address:                   14.0.0.1
      Interface:                    atm5/0.14
      Neighbor upTime:                28
      Neighbor Major Version:          3
      Neighbor Minor Version:        255
      Neighbor Capabilities:  Prune  GenerationId  Mtrace  NetMask
      Neighbor State:             Active
      Generation ID:        0x3a13fbc2
      Routes Received:                 1
      Bad Routes Received              0
      Bad Packets Received:            0

To display a summary of information about DVMRP neighbors:

host1:v3#show ip dvmrp neighbor brief
  Interface          NbrAddress      UpTime Maj Min Cap   State
  atm5/0.14          14.0.0.1            32   3 255 PGMN  Active
  atm5/0.15          15.0.0.1            34   3 255 PGMN  Active

Meaning

Table 46 lists the show ip dvmrp neighbor command output fields.

Table 46: show ip dvmrp neighbor Output Fields

Field

Description

Neighbor Address/NbrAddress

IP address of the neighbor

Interface

Interface type and specifier, such as atm3/0. For details about interface types and specifiers, see Interface Types and Specifiers in JunosE Command Reference Guide.

Neighbor upTime/UpTime

Length of time, in seconds, that this router has been a neighbor

Neighbor Major Version/Maj

Major number of the DVMRP version on the neighbor

Neighbor Minor Version/Min

Minor number of the DVMRP version on the neighbor

Neighbor Capabilities/Cap

Capability of the neighbor

Prune/P

Ability to send prune messages

Generation ID

Ability to create a generation ID number

Mtrace/M

Ability to trace multicast routes

Netmask/N

Ability to send prunes and grafts with a network mask address

Neighbor State/State

Status of communications with the neighbor

Active

Router is able to communicate with this neighbor

Down

Neighbor is down

Ignoring

Router is not accepting messages from this neighbor

Oneway

Router is receiving messages from the neighbor, but the neighbor does not include the router's IP address in the messages. This state can indicate a starting transition, or a problem.

Generation ID

Number that the neighbor generates each time it boots; when the number changes, the VR discards all information previously learned from the router.

Routes Received

Number of routes received from this neighbor

Bad Routes Received

Number of bad routes received from this neighbor

Bad Packets Received

Number of bad packets received from this neighbor

Related Documentation