Command Line Interface4-1444Rate Limit CommandsThis function allows the network manager to control the maximum rate for traffictransmitted or received on an interface. Rate limiting is configured on interfaces atthe edge of a network to limit traffic into or out of the network. Traffic that falls withinthe rate limit is transmitted, while packets that exceed the acceptable amount oftraffic are dropped.Rate limiting can be applied to individual ports or trunks. When an interface isconfigured with this feature, the traffic rate will be monitored by the hardware toverify conformity. Non-conforming traffic is dropped, conforming traffic is forwardedwithout any changes.Note: The “rate limit granularity” is multiplied by the “rate limit” (page 4-144) to set theactual rate limit for an interface. Granularity is a global setting that applies to FastEthernet or Gigabit Ethernet interfaces.rate-limitUse this command to define the rate limit level for a specific interface. Use thiscommand without specifying a rate to restore the default rate limit level. Use the noform to restore the default status of disabled.Syntaxrate-limit {input | output} level [rate]no rate-limit {input | output}• input – Input rate• output – Output rate• rate – Maximum value. (Fast Etherne:Range:1-255;Gigabit Ethernet:Range:1-30)Default SettingFast Ethernet:255 ; Gigabit Ethernet:30Command ModeInterface Configuration (Ethernet, Port Channel)Command UsageActual rate limit = Rate limit level * GranularityTable 4-48 Rate Limit CommandsCommand Function Mode Pagerate-limit Configures the maximum input or output rate for a port IC 4-144rate-limit granularity Sets the Fast Ethernet and Gigabit Ethernet granularity IC 4-145show rate-limit Shows the rate limit granularity PE 4-145
