Cisco NM-8B-U User Guide - Page 238
storm-control, broadcast, multicast, unicast, level, action shutdown, action, shutdown
UPC - 074632001001
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storm-control 16- and 36-Port Ethernet Switch Module for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series storm-control To enable broadcast, multicast, or unicast storm control on a port and to specify the action taken when a storm occurs on a port, use the storm-control command in interface configuration mode. To disable storm control for broadcast, multicast, or unicast traffic and disable the specified storm-control action, use the no form of this command. storm-control {{{broadcast | multicast | unicast} level level [lower-level]} | action shutdown} no storm-control {{broadcast | multicast | unicast} level} | action} Syntax Description {broadcast | multicast | unicast} Determines the type of packet-storm suppression. • broadcast-Enable broadcast storm control on the port. • multicast-Enable multicast storm control on the port. • unicast-Enable unicast storm control on the port. level level [lower-level] Defines the rising and falling suppression levels. • level-Rising suppression level as a percent of total bandwidth, up to two decimal places; valid values are from 0 to 100 percent. Block the flooding of storm packets when the value specified for level is reached. • lower level-(Optional) Falling suppression level as a percent of total bandwidth, up to two decimal places; valid values are from 0 to 100. This value must be less than the rising suppression value. action Action taken when a storm occurs on a port. The default action is to filter traffic. shutdown Disables the port during a storm. Defaults Broadcast, multicast, and unicast storm control are disabled. The default action is to filter traffic. Command Modes Interface configuration Command History Release 12.1(6)EA2 12.2(15)ZJ Modification This command was introduced. It replaced the port storm-control command. This command was implemented on the Cisco 2600 series, Cisco 3600 series, and Cisco 3700 series routers. 238 Cisco IOS Release 12.2(2)XT, 12.2(8)T, and 12.2(15)ZJ