Specifications

IP Switching Commands
show ip mds forwarding
ISW-189
Cisco IOS IP Switching Command Reference
May 2008
show ip mds forwarding
To display the Multicast Forwarding Information Base (MFIB) table and forwarding information for
multicast distributed switching (MDS) on a line card, use the show ip mds forwarding command in user
EXEC or privileged EXEC mode.
show ip mds forwarding [group-address] [source-address]
Syntax Description
Command Modes User EXEC
Privileged EXEC
Command History
Usage Guidelines Use this command on the line card. This command displays the MFIB table, forwarding information, and
related flags and counts.
Note To reach the console for a line card, enter attach slot# (slot number where the line card resides).
On a Gigabit Switched Router (GSR) only, line card commands can be executed from the Route
Processor (RP) using the following syntax: execute [slot slot-number | all] command.
The command argument is any of the line card show commands, such as show ip mds summary and
show ip mds forward.
Examples The following is sample output from the show ip mds forwarding command:
Router# show ip mds forwarding
IP multicast MDFS forwarding information and statistics:
Flags: N - Not MDFS switchable, F - Not all MDFS switchable, O - OIF Null
R - In-ratelimit, A - In-access, M - MTU mismatch, P - Register set
Interface state: Interface, Next-Hop, Mac header
(*, 224.2.170.73),
group-address (Optional) Address of the IP multicast group for which to display the MFIB
table.
source-address (Optional) Address of the source of IP multicast packets for which to display the
MFIB table.
Release Modification
11.2(11)GS This command was introduced.
12.2(33)SRA This command was integrated into Cisco IOS Release 12.2(33)SRA.
12.2SX This command is supported in the Cisco IOS Release 12.2SX train. Support
in a specific 12.2SX release of this train depends on your feature set,
platform, and platform hardware.