Storm-Control Commands 87
2 Switching Commands
storm-control unicast all
This command enables unicast storm recovery mode for all interfaces. If the mode is enabled,
unicast storm recovery is active, and if the rate of unknown L2 unicast (destination lookup
failure) traffic ingressing on an interface increases beyond the configured threshold, the traffic
will be dropped. Therefore, the rate of unknown unicast traffic will be limited to the
configured threshold.
Default disabled
Format
storm-control unicast all
Mode Global Config
no storm-control unicast all
This command disables unicast storm recovery mode for all interfaces.
Format
no storm-control unicast all
Mode Global Config
storm-control unicast all level
This command configures the unicast storm recovery threshold in terms of percentage of the
interface speed for an interface, and enables unicast storm recovery for all interfaces. If the
mode is enabled, unicast storm recovery is active, and if the rate of unknown L2 unicast
(destination lookup failure) traffic ingressing on an interface increases beyond the configured
threshold, the traffic will be dropped. Therefore, the rate of unknown unicast traffic will be
limited to the configured threshold.
Default 5
Format
storm-control unicast all level <0-100>
Mode Global Config
no storm-control unicast all level
This command returns the unicast storm recovery threshold to the default value and disables
unicast storm recovery for all interfaces.
Format
no storm-control unicast all level
Mode Global Config
storm-control flowcontrol
This command enables 802.3x flow control for the switch and only applies to full-duplex
mode ports.
NOTE: 802.3x flow control works by pausing a port when the port becomes oversub-
scribed and dropping all traffic for small bursts of time during the congestion
condition. This can lead to high-priority and/or network control traffic loss.
Default disabled
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