User Manual

C HAPTER 41 | Quality of Service Commands
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◆ Up to 16 classes can be included in a policy map.
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 flow command to limit the average bandwidth to 100,000 Kbps, the
burst rate to 4,000 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 flow 10000 4000 conform-action transmit
violate-action drop
Console(config-pmap-c)#
police flow This command defines an enforcer for classified traffic based on the
metered flow rate. Use the no form to remove a policer.
SYNTAX
[no] police flow committed-rate committed-burst
violate-action {drop| new-dscp}
committed-rate - Committed information rate (CIR) in kilobits per
second. (Range: 1-1000000 kbps or maximum port speed,
whichever is lower)
committed-burst - Committed burst size (BC) in bytes.
(Range: 64-524288)
violate-action - Action to take when packet exceeds the CIR and
BC. (There are not enough tokens to service the packet, the packet
is set red).
transmit - Transmits without taking any action.
drop - Drops packet as required by violate-action.
new-dscp - Differentiated Service Code Point (DSCP) value.
(Range: 0-63)
DEFAULT SETTING
None
COMMAND MODE
Policy Map Class Configuration
COMMAND USAGE
◆ You can configure up to 16 policers (i.e., class maps) for ingress ports.
◆ The
committed-rate cannot exceed the configured interface speed, and
the
committed-burst cannot exceed 16 Mbytes.