Command Reference Guide

3Com Router 5000 Family and Router 6000 Family display ip multicast-fast-forwarding cache ● 145
Command Reference
display ip multicast-fast-forwarding cache
Purpose Use the display ip multicast-fast-forwarding cache command to
display summary information about the fast forwarding table entries in the multicast
fast forwarding cache.
Syntax display ip multicast-fast-forwarding cache [ multicast-group ]
Parameters multicast-group
IP address of the multicast group in dotted decimal
notation, such as 224.0.0.1.
Example Display summary information about all fast forwarding table entries related to a
specified multicast address in the cache.
<3Com> display ip multicast-fast-forwarding cache 225.1.2.3
Multicasting fast-forwarding cache: total 120 items
Multicasting fast-Forwarding cache by selected group: 10 items
----------------------------------------------------------------------
Source Address:Port Group Address:Port Prot RecvInterface SendInterface
L2H
156.43.56.34:1057 225.1.2.3:1058 0x11 E 0/0/0 E 0/0/1
Yes
E 2/0/0
No
E 2/0/1
Yes
View This command can be used in the following views:
■ Any view
Table 13 Description on the fields of display ip multicast-fast-forwarding cache
Field Description
Multicasting
fast-forwarding cache
Total number of fast forwarding table entries in the multicast fast
forwarding cache
Multicasting
fast-Forwarding cache by
selected group
Number of fast forwarding table entries related to the specified
multicast group in the multicast fast forwarding cache
Source Address:Port Source address and source port number
Group Address:Port Multicast address and destination port number
Prot Protocol number, which is usually 0x11 for the UDP protocol.
RecvInterface Inbound interface
SendInterface Outbound interface
L2H Status of the outbound interface, that is, whether the link layer header
is present.