R2511-HP MSR Router Series Interface Command Reference(V5)

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Syntax
broadcast-suppression { ratio | pps max-pps }
undo broadcast-suppression
Default
Ethernet interfaces do not suppress broadcast traffic.
Views
Layer 2 Ethernet interface view, port group view
Default command level
2: System level
Parameters
ratio: Sets the broadcast suppression threshold as a percentage of the maximum interface rate. The
smaller the percentage, the less broadcast traffic is allowed to be received.
pps max-pps: Specifies the maximum number of broadcast packets that the Ethernet interface can receive
per second. The value range for the max-pps argument is 1 to 1488100 pps. Support of MSR routers for
this option varies by router model. For more information, see the usage guidelines for this command.
Usage guidelines
In Ethernet interface view, the configuration takes effect only on the interface. In port group view, the
configuration takes effect on all the ports in the port group.
When the received broadcast traffic exceeds the broadcast suppression threshold, the interface discards
broadcast packets until broadcast traffic drops below the threshold.
If you set different broadcast suppression thresholds in Ethernet interface view or port group view multiple
times, the one configured last takes effect.
On the XMIM-16FSW, XMIM-24FSW, SIC-4FSW, SIC-4FSW-POE, DSIC-9FSW, and DSIC-9FSW-POE
switching fabric modules and the and the fixed Layer 2 ports of MSR900, MSR93X MSR20-21, and
MSR20-1X routers, the broadcast suppression threshold is 8 Mbps by default, and the ratio argument is
not supported. The available values of the max-pps argument include only 190 pps, 380 pps, 760 pps,
1488 pps, 2976 pps, 5952 pps, and 11904 pps.
Examples
# Set the broadcast suppression threshold to 20% on Ethernet 1/1.
<Sysname> system-view
[Sysname] interface ethernet 1/1
[Sysname-Ethernet1/1] broadcast-suppression 20
# Set the broadcast suppression threshold to 20% on all ports in the manual port group named group1.
<Sysname> system-view
[Sysname] port-group manual group1
[Sysname-port-group-manual-group1] group-member ethernet 2/0
[Sysname-port-group-manual-group1] group-member ethernet 2/1
[Sysname-port-group-manual-group1] broadcast-suppression 20
display loopback-detection
Use display loopback-detection to display the status of the loopback detection function.