Switch User Manual

Example
This example creates a policy called “rd_policy,” uses the class command to specify
the previously defined “rd_class,” uses the
set command to classify the service that
incoming packets will receive, and then uses the
police command to limit the
average bandwidth to 100,000 Kbps, the burst rate to 1522 bytes, and configure the
response to drop any violating packets.
Console(config)#policy-map rd_policy
Console(config-pmap)#class rd_class
Console(config-pmap-c)#set ip dscp 3
Console(config-pmap-c)#police 100000 1522 exceed-action drop
Console(config-pmap-c)#
police
This command defines an policer for classified traffic based on the metered flow
rate. Use the no form to remove a policer.
Syntax
[no] police rate-kbps burst-byte [exceed-action {drop | set}]
• rate-kbps - Committed information rate in kilobits per second.
(Range: 1-100000 kbps or maximum port speed, whichever is lower)
• burst-byte - Committed burst size in bytes. (Range: 64-524288 bytes)
• drop - Drop packet when specified rate or burst are exceeded.
• set - Set DSCP service to the specified value. (Range: 0-63)
Default Setting
Drop out-of-profile packets.
Command Mode
Policy Map Class Configuration
Command Usage
• You can configure up to 64 policers (i.e., meters or class maps) for each of the
following access list types: MAC ACL, IP ACL (including Standard ACL and
Extended ACL), IPv6 Standard ACL, and IPv6 Extended ACL. This limitation
applies to each switch chip (IC40240-10G: ports 1-26, IC40480-10G: ports 1-25,
ports
26-50).
• Policing is based on a token bucket, where bucket depth (i.e., the maximum
burst before the bucket overflows) is by specified the burst-byte field, and the
average rate tokens are removed from the bucket is by specified by the
rate-bps option.