1-27
Description
Use the unicast-suppression command to limit the unknown unicast traffic allowed to be received on
the current port.
Use the undo broadcast-suppression command to restore the default unknown unicast suppression
setting on the port.
When incoming unknown unicast traffic exceeds the unknown unicast traffic threshold you set, the
system drops the packets exceeding the threshold to reduce the unknown unicast traffic ratio to the
reasonable range, so as to keep normal network service.
By default, the switch does not suppress unknown unicast traffic.
Examples
# Allow unknown incoming unicast traffic on Ethernet 1/0/1 to occupy at most 20% of the transmission
capacity of the port, and suppress the unknown unicast traffic that exceeds the specified range.
<Sysname> system-view
System View: return to User View with Ctrl+Z.
[Sysname] interface ethernet 1/0/1
[Sysname-Ethernet1/0/1] unicast-suppression 20
# Set the maximum number of unknown unicast packets that can be received per second by Ethernet
1/0/1 to 1,000.
[Sysname-Ethernet1/0/1] unicast-suppression pps 1000
virtual-cable-test
Syntax
virtual-cable-test
View
Ethernet port view
Parameters
None
Description
Use the virtual-cable-test command to enable the system to test the cable connected to a specific port
and to display the results. The system can test these attributes of the cable:
z Cable status, including normal, abnormal, abnormal-open, abnormal-short and failure
z Cable length
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