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interface interface-type interface-number: Specifies an interface by its type and
number. If you do not specify this option, the command displays storm control settings and statistics
for all storm control-enabled interfaces.
Usage guidelines
If you do not specify any keywords, this command displays all storm control settings on all storm
control-enabled interfaces.
Examples
# Display the storm control settings on all storm control-enabled ports.
<Sysname> display storm-constrain
Abbreviation: BC - broadcast; MC - multicast; UC - unicast
KNUC - known unicast; FW - forwarding
Flow Statistic Interval: 5 (in seconds)
Port Type Lower Upper Unit CtrlMode Status Trap Log SwitchNum
-------------------------------------------------------------------------------------
GE1/0/1 MC 100 200 kbps shutdown shutdown off on 10
Table 7 Command output
Field Description
Flow Statistic Interval Traffic polling interval (in seconds) of the storm control module.
Port Abbreviated interface name.
Type
Type of traffic subjected to storm control:
• BC—Broadcast packets.
• MC—Multicast packets.
• UC—Unknown unicast packets.
• KNUC—Known unicast packets.
Lower Lower storm control threshold, in pps, kbps, or percentage.
Upper Upper storm control threshold, in pps, kbps, or percentage.
Unit
Storm control threshold unit:
• pps.
• kbps.
• percentage.
CtrlMode
Action (block or shutdown) taken on the interface when the upper threshold
is reached. N/A indicates that no action is configured.
Status
Packet forwarding status:
• forwarding—The port is forwarding traffic correctly.
• shutdown—The port has been shut down.
• block—The port drops the type of traffic.
Trap
Status of the storm control threshold event trap switch:
• on—The port sends threshold event traps.
• off—The port does not send threshold event traps.
Log
Status of the storm control threshold event log switch:
• on—The port sends threshold event log messages.
• off—The port does not send threshold event log messages.
SwitchNum
Number of forwarding state changes of the interface.
When the
SwitchNum
field reaches 65535, it resets automatically.