3Com Switch 7750 Series
Command Reference Guide — Basic Port Commands Chapter 1 Port Basic Configuration Commands
1-1
Chapter 1 Port Basic Configuration Commands 1.1 Port Basic Configuration Commands
1.1.1 broadcast-suppression
Syntax
broadcast-suppression { ratio | bandwidth bandwidth | pps pps }
undo broadcast-suppression
View
Ethernet port view
Parameter
ratio: Maximum ratio of the received broadcast traffic to the total bandwidth on an
Ethernet port. The value ranges from 1 to 100 and defaults to 100. The smaller the ratio
is, the less broadcast traffic is allowed.
bandwidth bandwidth: Specifies the maximum bandwidth of broadcast traffic received
on the Ethernet port. For a 100 Mbps port, the bandwidth argument is in the range of 1
to 100 in Mbps; for a gigabit port, the bandwidth argument is in the range of 1 to 1000 in
Mbps.
pps pps: Specifies the maximum number of broadcast packets allowed to be received
per second on an Ethernet port (in pps).
z For a 100 Mbps Ethernet port, the pps argument is in the range of 0 to 148,810.
z For a Gigabit Ethernet port, the pps argument is in the range of 1,488,100.
z For a 10GE port, the pps argument is in the range of 0 to 14,881,000.
Description
Use the broadcast-suppression command to limit broadcast traffic allowed to be
received on each port (in system view) or on a specified port (in Ethernet port view).
Use the undo broadcast-suppression command to restore the default broadcast
suppression setting.
When incoming broadcast traffic exceeds the broadcast traffic threshold you set, the
system drops the packets exceeding the threshold to reduce the broadcast traffic ratio
to the reasonable range, so as to keep normal network service.
By default, broadcast suppression is disabled.