Руководство Пользователя для 3com 8807
Configuring Broadcast/Multicast Suppression
439
# Create a local-user in system view. Then set the password and service type for
the user.
the user.
[SW8800] local-user liu
[3Com-luser-liu] password simple aaa
[3Com-luser-liu] service-type lan-access
# In user view, configure the allowed multicast group for the user to join.
[3Com-luser-liu] multicast 227.1.1.1
Configuring
Broadcast/Multicast
Suppression
Broadcast/Multicast
Suppression
Introduction
To prevent port congestion resulting from broadcast/multicast packet flooding, the
switch supports broadcast/multicast suppression. You can enable
broadcast/multicast suppression by setting the speed percentage or bandwidth
values.
switch supports broadcast/multicast suppression. You can enable
broadcast/multicast suppression by setting the speed percentage or bandwidth
values.
Configuration
c
CAUTION:
■
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.
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.
■
If multicast suppression is enabled, broadcast packets are also suppressed at
the same time, while broadcast suppression does not work on multicast
suppression.
the same time, while broadcast suppression does not work on multicast
suppression.
■
No distinction is made between known multicast and unknown multicast for
multicast suppression.
multicast suppression.
Table 430 Configure Broadcast/Multicast Suppression
Operation
Command
Remarks
Enter system view
system-view
-
Enter Ethernet port view
interface interface-type
interface-number
interface-number
Required
interface-type must be
Ethernet
Ethernet
Configure multicast
suppression ration Ethernet
port
suppression ration Ethernet
port
multicast-suppression { ratio |
bandwidth bandwidth }
bandwidth bandwidth }
Optional
By default, the multicast
suppression ratio is 100%
suppression ratio is 100%
Configure broadcast
suppression ration Ethernet
port
suppression ration Ethernet
port
broadcast-suppression { ratio |
bandwidth bandwidth }
bandwidth bandwidth }
Optional
By default, the broadcast
suppression ratio is 50%
suppression ratio is 50%