KB.15.15

NOTE: Policy Based Routing (PBR) is available on the 3800 Series switch and the 5400/8200

series switch which all have v2 or higher modules. Any v1 modules will prevent PBR from

functioning. PBR is not available on the 3500, 3500yl, 6200yl, nor 6600 Series switches.

• If you apply a policy to a port or VLAN interface on which a policy of the same type (for

example, QoS) is already configured, an error message is displayed. The new policy does

not overwrite the existing one.

Before you can apply a new policy, you must first remove the existing policy with the no

interface service-policy in or no vlan service-policy in command.

Because only one policy of each type is supported on a port or VLAN interface, ensure that the

policy you want to apply contains all the required classes and actions for your configuration.

NOTE: If ICMP rate limiting is already configured on a port, a service policy cannot be applied

to the port until you disable the ICMP rate limiting configuration.

To apply a service policy to the port, maintain ICMP rate limiting by configuring a QoS policy in

which you add the necessary match statements for ICMP packets to a class configuration and

configure a rate-limit action for the class in the policy configuration.

For information on globally configured ICMP, see the Management Configuration Guide for your

switch.

To apply a service policy on a port or VLAN interface, enter one of the following commands from

the global configuration context.

Context: Global configuration

Syntax:

interface port-list service-policy policy-name in

Configures the specified ports with a policy that is applied to inbound traffic on

each interface. Separate individual port numbers in a series with a comma; for

example, a1, b4, d3. Enter a range of ports by using a dash; for example,

a1-a5.

The policy name you enter must be the same as the policy name you configured

with the policy command.

Context: Global configuration

Syntax:

vlan vlan-id service-policy policy-name in

Configures a policy on the specified VLAN that is applied to inbound traffic on the

VLAN interface. Valid VLAN ID numbers range from 1 to 4094.

The policy name you enter must be the same as the policy name you configured

with the policy command.

362 Classifier-based software configuration