Reset Multicast Forwarding-Table - 3Com 8807 Command Reference Manual

You can use the multicast-suppression command repeatedly. The effective
multicast suppression ratio value is the one last updated.
c
CAUTION:
■
■
■
Related command: broadcast-suppression.
Example
# Set the multicast suppression ratio to 40%.
<SW8800> system-view
System View: return to User View with Ctrl+Z.
[SW8800]interface Ethernet 2/1/1
[3Com-Ethernet2/1/1] multicast-suppression 40
# Set the multicast suppression bandwidth to 40Mbit.
[3Com-Ethernet2/1/1] multicast-suppression bandwidth 40
# Disable multicast suppression.
[3Com-Ethernet2/1/1] undo multicast-suppression
reset multicast Syntax
forwarding-table
reset multicast forwarding-table [ statistics ] { all | { group-address [ mask {
group-mask | group-mask-length } ] | source-address [ mask { source-mask |
source-mask-length } ] | incoming-interface { null NULL-interface-number |
interface-type interface-number } }* }
View
User view
Parameter
statistics: If it is selected, the system clears the statistic information of MFC
forward entries. Otherwise, the system clears MFC forward entries.
all: All MFC forward entries.
group-address: Multicast group address.
group-mask: Mask of multicast group address
You cannot enable both broadcast suppression and multicast suppression
simultaneously on the same card. Namely, once you have enabled broadcast
suppression on some ports of a card, you cannot enable multicast suppression
on the other ports of the card, and vice versa. Although the commands are
based on ports, the mutual exclusion between these two commands is based
on cards.
If multicast suppression is enabled, broadcast packets are also suppressed at
the same time, while broadcast suppression does not work on multicast
packets.
No distinction is made between known multicast and unknown multicast for
multicast suppression.
Multicast Common Configuration Commands 595