show ip mroute

Use this command to display the IP multicast routing table.

Syntax

show ip mroute [source source | group group | interface interface] [brief] [type {all | s-g | star-g}] [summary]

Parameters

source `source`	(Optional) Displays information about a specific unicast source address.
group `group`	(Optional) Displays information about a multicast destination address.
interface `interface`	(Optional) Displays information about a specific interface entered in format vlan.0.x.
brief	(Optional) Displays a brief level of information.
type all \| s-g \| star-g	(Optional) Displays the specified route entry type: all – displays all route entries (default) s-g – displays S,G entries star-g – displays *,G entries
summary	(Optional) Displays a one line summary for each multicast route based upon the source, group, or interface filter option entered.

Defaults

If no optional parameters are specified, detailed information about all source and destination addresses will be displayed.

Mode

All command modes.

Usage

The output for this command shows how a multicast routing protocol, such as PIM and DVMRP, will forward a multicast packet. Information in the table includes source network/mask and upstream neighbors. For more information on configuring PIM and DVMRP, refer to the S-, K-, and 7100 Series Configuration Guide.

Example

This example shows a portion of the IP multicast routing table display. In this case, it shows there are two source PIM sparse mode (PIM-SM) multicast networks. The first PIM-SM network shows an incoming route at VLAN 13 and outgoing routes at VLAN 1030 and 1040:

System(su)->show ip mroute
IP Multicast Routing Table
Flags: D - Dense, S - Sparse, C - Source is connected,
       F - Register flag, N - No outgoing interfaces        Q - Null-Forwarding entry
Timers: Uptime/Expires
  PIMSM (*, 224.1.1.1), 14:02:09/00:00:00, flags: SC
        Incoming interface: vlan.0.13
        Outgoing interface list:
          vlan.0.1030, Forward/Sparse, 14:02:09/00:00:00
          vlan.0.1040, Forward/Sparse, 14:02:09/00:00:00
  PIMSM (30.1.1.11/32, 224.1.1.1), 14:02:09/00:00:00, flags: S
        Incoming interface: vlan.0.13
        Outgoing interface list:
          vlan.0.1030, Forward/Sparse, 14:02:09/00:00:00
          vlan.0.1040, Forward/Sparse, 14:02:09/00:00:00
  PIMSM (110.1.1.11/32, 224.1.1.1), 14:02:09/00:00:00, flags: S
        Incoming interface: vlan.0.13
        Outgoing interface list:
          vlan.0.1030, Forward/Sparse, 14:02:09/00:00:00
          vlan.0.1040, Forward/Sparse, 14:02:09/00:00:00

Published May 2016prev | next

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