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Chapter 30: Rate Limit Commands
This function allows the network manager to control the maximum rate for traffic
transmitted or received on an interface. Rate limiting is configured on interfaces at
the edge of a network to limit traffic into or out of the network. Packets that exceed
the acceptable amount of traffic are dropped.
Rate limiting can be applied to individual ports or trunks. When an interface is
configured with this feature, the traffic rate will be monitored by the hardware to
verify conformity. Non-conforming traffic is dropped.
Table 30-1 Rate Limit Commands
Command Function Mode Page
rate-limit Configures the maximum input or output rate for a port IC 30-1
rate-limit
This command defines the rate limit for a specific interface. Use this command
without specifying a rate to restore the default rate. Use the
no
form to restore the
default status of disabled.
Syntax
rate-limit {input | output} [rate]
no rate-limit {input | output}
• input – Input rate
• output – Output rate
• rate – Maximum value in Kbps.
(Range: 1-10000 Mbps for Gigabit Ethernet ports)
Default Setting
Gigabit Ethernet: 1000 Mbps
Command Mode
Interface Configuration (Ethernet, Port Channel)
Command Usage
Rate limits are not supported for the 10 Gigabit Ethernet ports.
Example
Console(config)#interface ethernet 1/1
Console(config-if)#rate-limit input 600
Console(config-if)#
Related Command
show interfaces switchport (27-11)
30-1