Cisco ME 3400 Command Reference Manual page 303

Chapter 2 Cisco ME 3400 Ethernet Access Switch Cisco IOS Commands
Usage Guidelines You can configure conform-action marking by using enhanced packet marking and configure
exceed-action to send the packet unmodified, mark using explicit values, and use all combinations of
enhanced packet marking. Enhanced packet marking modifies a QoS marking based on any incoming
QoS marking and table maps. The switch also supports marking multiple QoS parameters for the same
class and simultaneously configuring conform-action marking and exceed-action marking.
The switch supports a maximum of 229 policer instances on the switch (228 user-configurable policers
and 1 policer reserved for internal use).
When CPU protection is enabled (the default), you can configure 45 ingress policers per port. If you
disable CPU protection by entering the no policer cpu uni all global configuration command and
reloading the switch, you can configure up to 64 ingress policers per port (63 policers on every fourth
port). For more information, see the
Policing is only supported in input policies or in output policies that were configured with the priority
policy-map class configuration command to reduce bandwidth in the priority queue.
When used with the priority command in an output policy, the police rate range is 64000 to
Note
1000000000 bps, even though the range that appears in the command-line interface help is 8000 to
1000000000. You cannot attach an output service policy with an out-of-range rate.
An output policy map should match only the modified values of the out-of-profile traffic and not the
original values.
To configure multiple conform-actions or multiple exceed-actions, enter policy-map class police
configuration mode, and use the conform-action and exceed-action policy-map class police
configuration commands.
When you define the policer and press Enter, you enter policy-map class police configuration mode, in
which you can configure multiple policing actions:
•
•
•
•
Examples
This example shows how to configure a policer with a 1-Mbps average rate with a burst size of 20 KB.
The policer sets a new DSCP precedence value if the packets conform to the rate and drops the packet if
traffic exceeds the rate.
Switch(config)# policy-map policy1
Switch(config-pmap)# class inclass1
Switch(config-pmap-c)# police cir 1000000 20000 conform-action set-dscp-transmit 46
exceed-action drop
Switch(config-pmap-c)# exit
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conform-action: the action to be taken on packets that conform to (are less than or equal to) the
CIR. The default action is to transmit the packet. For more information, see the
policy-map class police command.
exceed-action: the action to be taken on packets that do not conform to the CIR. The default action
is to drop the packet. For more information, see the
command.
exit: exits from QoS policy-map class police configuration mode. If you do not want to set multiple
actions, you can enter exit without entering any other policy-map class police commands.
no: negates or sets the default values of a command.
policer cpu uni command.
exceed-action
Cisco ME 3400 Ethernet Access Switch Command Reference
police
conform-action
policy-map class police
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