506CHAPTER 18: IP MULTICAST

ip multicast dvmrp For CoreBuilder 9000: Applies to Layer 3 switching modules only.

interface detail

Displays information about IP interfaces that run the Distance-Vector

 

3500

Multicast Routing Protocol.

 

9000

Valid Minimum Abbreviation

9400

ip m d i s

3900

Fields in the IP Multicast DVMRP Interface Detail Display

9300

 

 

Field

Description

 

 

Index

Number associated with the interface for identification

 

purposes

Address

IP address of the interface

Metric

Numeric DVMRP metric or “cost” that you assign to the

 

interface

State

Role that the interface plays in IP multicast delivery. One

 

or more of the following descriptors may appear:

 

querier — The interface is functioning as the IGMP

 

Querier for its subnetwork.

 

non-querier— The interface is not functioning as

 

the IGMP Querier for its subnetwork.

 

leaf — There are no routers downstream of this

 

interface; IP multicast group members may reside on

 

this subnetwork.

 

non-leaf— The interface is a branch in the IP

 

multicast delivery tree. There are one or more IP

 

multicast routing interfaces downstream of this

 

interface.

 

one-way— Traffic is moving downstream only.

 

disabled — DVMRP is disabled on the interface.

 

up — The IP interface is available to support network

 

communication.

 

down — The IP interface is not available to support

 

network communication.

Group

IP multicast group addresses of the traffic that is being

 

received and forwarded on that interface.

Peer, Port

IP address of the upstream router. The additional

 

information to the right relates to the version of DVMRP

 

that is running and the port in the local interface that

 

connects to the peer router.

 

 

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3Com 3500 manual Multicast Routing Protocol, Fields in the IP Multicast Dvmrp Interface Detail Display