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Port Configuration
3-83
3
Configuring Rate Limits
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 coming out of the switch. Traffic that falls within
the rate limit is transmitted, while 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, conforming traffic is forwarded
without any changes.
Command Attribute
• Rate Limit – Sets the output rate limit for an interface.
Default Status – Disabled
Default Rate – 1000 Mbps
Range – 1 - 1000 Mbps
Web – Click Rate Limit, Input/Output Port/Trunk Configuration. Set the Input Rate
Limit Status or Output Rate Limit Status, then set the rate limit for the individual
interfaces, and click Apply.
Figure 3-49. Rate Limit Configuration
CLI - This example sets the rate limit for input and output traffic passing through
port 1 to 600 Mbps.
Console(config)#interface ethernet 1/1 4-125
Console(config-if)#rate-limit input 600 4-138
Console(config-if)#rate-limit output 600
Console(config-if)#