H3C S5120-EI Series - Virtual-Cable-Test

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• For a Gigabit port, the value range is 1 to 1000000.
• For a 10-Gigabit port, the value range is 1 to 10000000.
Description
Use the unicast-suppression command to set the unknown unicast suppression threshold on an Ethernet
interface view or a group of Ethernet interfaces in port group view.
Use the undo unicast-suppression command to restore the default.
By default, Ethernet interfaces do not suppress unknown unicast traffic.
If you execute this command in Ethernet interface view, the configurations take effect only on the current
interface. If you execute this command in port-group view, the configurations take effect on all ports in the
port group.
When unknown unicast traffic exceeds the threshold you configure, the system discards unknown unicast
packets until the unknown unicast traffic drops below the threshold.
NOTE:
• If you set different unknown unicast suppression thresholds in Ethernet interface view or port-
g
roup vie
w
multiple times, the one configured last takes effect.
• For a particular type of traffic, confi
g
ure either storm suppression or storm control, but not both. If both
of them are configured, you may fail to achieve the expected storm control effect.
Examples
# Set the unknown unicast threshold to 20% on Ethernet interface GigabitEthernet 1/0/1.
<Sysname> system-view
[Sysname] interface gigabitethernet 1/0/1
[Sysname-GigabitEthernet1/0/1] unicast-suppression 20
# Set the unknown unicast threshold to 20% on all ports of port group group1.
<Sysname> system-view
[Sysname] port-group manual group1
[Sysname-port-group-manual-group1] group-member gigabitethernet 1/0/1
[Sysname-port-group-manual-group1] group-member gigabitethernet 1/0/2
[Sysname-port-group-manual-group1] unicast-suppression 20
virtual-cable-test
Syntax
virtual-cable-test
View
Ethernet interface view
Default level
2: System level
Parameters
None