Displaying Bidirectional Pim Information - Cisco Catalyst 4500 Series Configuration Manual

Monitoring and Maintaining IP Multicast Routing
Command
Switch# show ip mfib
Switch# show ip mfib all
Switch# show ip mfib log [n]
The following is sample output from the show ip mfib command:
IP Multicast Forwarding Information Base
Entry Flags: C - Directly Connected, S - Signal,
Interface Flags: A - Accept, F - Forward, S - Signal,
Packets: Fast/Partial/Slow Bytes: Fast/Partial/Slow:
(171.69.10.13, 224.0.1.40), flags (IC)
Packets: 2292/2292/0, Bytes: 518803/0/518803
Vlan7 (A)
Vlan100 (F NS)
Vlan105 (F NS)
(*, 224.0.1.60), flags ()
Packets: 2292/0/0, Bytes: 518803/0/0
Vlan7 (A NS)
(*, 224.0.1.75), flags ()
Vlan7 (A NS)
(10.34.2.92, 239.192.128.80), flags ()
Packets: 24579/100/0, 2113788/15000/0 bytes
Vlan7 (F NS)
Vlan100 (A)
(*, 239.193.100.70), flags ()
Packets: 1/0/0, 1500/0/0 bytes
Vlan7 (A)
..
The fast-switched packet count represents the number of packets that were switched in hardware on the
corresponding route.
The partially switched packet counter represents the number of times that a fast-switched packet was
also copied to the CPU for software processing or for forwarding to one or more non-platform switched
interfaces (such as a PimTunnel interface).
The slow-switched packet count represents the number of packets that were switched completely in
software on the corresponding route.

Displaying Bidirectional PIM Information

To display bidir-PIM information, enter one of these commands:
Software Configuration Guide—Release IOS XE 3.3.0SG and IOS 15.1(1)SG
35-26
IC - Internal Copy
NP - Not platform switched
Purpose
Displays the (S,G) and (*,G) routes that are used for packet
forwarding. Displays counts for fast, slow, and partially
switched packets for every multicast route.
Displays all routes in the MFIB, including routes that may
not exist directly in the upper-layer routing protocol
database, but that are used to accelerate fast switching.
These routes include the (S/M,224/4) routes.
Displays a log of the most recent n MFIB-related events,
the most recent first.
n represents the number of events.
Chapter 35 Configuring IP Multicast
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