Policy Class Maps

One or more class maps can be added to a policy. A class map defines the type of packets that are considered to belong to the same traffic flow.

To add a class map to a policy:

Procedure

Step 1

Click Quality of Service > QoS Advanced Mode > Policy Class Maps.

Step 2

Select a policy in the Filter, and click Go. All class maps in that policy are displayed.

Step 3

To add a new class map, click Add.

Step 4

Enter the following parameters.

Policy Name

Displays the policy to which the class map is being added.

Class Map Name

Select an existing class map to be associated with the policy. Class maps are created in the Class Mapping page.

Action Type

Select the action regarding the ingress CoS/802.1p and/or DSCP value of all the matching packets.

  • Use default trust mode—If this option is selected, use the default mode status in Global Trust mode. If the default mode status is “Not Trusted”, ignore the ingress CoS/802.1p and/or DSCP value and the matching packets are sent as best effort.

  • Always Trust—If this option is selected, the device trusts the matching packet based on the Global Trust mode (selected in the Global Settings page). It ignores the Default Mode status (selected in the Global Settings page).

  • Set—If this option is selected, use the value entered in the New Value box to determine the egress queue of the matching packets as follows:

    If the new value (0..7) is a CoS/802.1p priority, use the priority value and the CoS/802.1p to Queue Table to determine the egress queue of all the matching packets.

    If the new value (0..63) is a DSCP, use the new DSCP and the DSCP to Queue Table to determine the egress queue of the matching IP packets. Otherwise, use the new value (1..8) as the egress queue number for all the matching packets.

Police Type

Select the policer type for the policy. The options are:

  • None—No policy is used.

  • Single—The policer for the policy is a single policer.

  • Aggregate—The policer for the policy is an aggregate policer.
Step 5

If Police Type is Aggregate, select the Aggregate Policer.

Step 6

If Police Type is Single, enter the following QoS parameters:

Ingress Committed Information Rate (CIR)

Enter the CIR in Kbps. See a description of this in the Bandwidth page.

Exceed Action

Select the action assigned to incoming packets exceeding the CIR. The options are:

  • Drop—Packets exceeding the defined CIR value are dropped.
Step 7

Click Apply.