Cisco ME 3400 Command Reference Manual page 345

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).
•
•
•
•
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.
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You can specify 256 unique VLAN classification criteria within a per-port, per-VLAN policy-map,
across all ports on the switch. Any policy attachment or change that causes this limit to be exceeded
fails with a
VLAN label resources exceeded
You can attach per-port and per-port, per-VLAN policy-maps across all ports on the switch until
QoS ACE classification resource limitations are reached. Any policy attachment or change that
causes this limit to be exceeded fails with a
When CPU protection is enabled, you can configure only 45 policers per port. You can configure up
to 64 policers per port by disabling CPU protection by entering the no policer cpu uni all global
configuration command, and reloading the switch allows. You can enter the show policer cpu uni-eni
{drop | rate} privileged EXEC command to see if CPU protection is enabled. For more information,
see the policer cpu uni command.
Note these limitations when you disable CPU protection:
When CPU protection is disabled, you can configure a maximum of 63 policers per port (62 on
–
every fourth port) for user-defined classes and one for class-default for all switches. Any policy
attachment or change that causes this limit to be exceeded fails with a policer resources
exceeded error message.
When CPU protection is disabled, you can configure 255 policers on the switch for platform.
–
Any policy attachment or change that causes this limit to be exceeded fails with a policer
resources exceeded error message.
– If you disable CPU protection and attach a policy map with more than 45 policers, and enable
CPU protection again, and then reload, 19 policers per port are again required for CPU
protection. During reload, the policers 46 and above will reach the policer resources exceeded
error condition, and no policers are attached to those classes.
error message.
TCAM resources exceeded
Cisco ME 3400 Ethernet Access Switch Command Reference
police
error message.
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