4 Command Line Interface

Command Usage

This command displays information for multicast routing. If no optional parameters are selected, detailed information for each entry in the multicast address table is displayed. If you select a multicast group and source pair, detailed information is displayed only for the specified entry. If the summary option is selected, an abbreviated list of information for each entry is displayed on a single line.

Example

This example shows detailed multicast information for a specified group/source pair

Console#show ip mroute 224.0.255.3 192.111.46.8

IP Multicast Forwarding is enabled.

IP Multicast Routing Table

Flags: P - Prune, F - Forwarding (192.111.46.0, 255.255.255.0, 224.0.255.3) Owner: DVMPR

Upstream Interface: vlan1

Upstream Router: 148.122.34.9

Downstream: vlan2(P), vlan3(F) Console#

 

Table 4-105 show ip mroute - display description

Field

 

Description

 

 

 

Source and netmask

 

Subnetwork containing the IP multicast source.

 

 

 

Group address

 

IP multicast group address for a requested service.

 

 

 

Owner

 

The associated multicast protocol (i.e., DVMRP or PIM-DM).

 

 

 

Upstream Interface

 

Interface leading to the upstream neighbor.

 

 

 

Upstream Router

 

IP address of the multicast router immediately upstream for this group.

 

 

 

Downstream interface

 

The interface(s) on which multicast subscribers have been recorded. The flags

and flags

 

associated with each interface indicate prune (P) if the downstream interface

 

 

has been recently terminated or forwarding (F) if the interface is still active.

This example lists all entries in the multicast table in summary form:

Console#show ip mroute summary

IP Multicast Forwarding is enabled.

IP Multicast Routing Table (Summary)

 

 

Flags: P - Prune UP

 

 

 

 

Group

Source

Source Mask

Interface Owner

Flags

--------------- --------------- --------------- ---------- ------- ------

224.1.1.1

10.1.0.0

255.255.0.0

vlan1

DVMRP

P

224.2.2.2

10.1.0.0

255.255.0.0

vlan1

DVMRP

--

Console#

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Microsoft ES4625, ES4649 manual show ip mroute display description, Subnetwork containing the IP multicast source, Flags
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ES4649, ES4625 specifications

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