Implementing Quality of Service (QoS) 809Programming Operations GuideConfiguring QoS policiesA Policy is an association between Devices (interface groups), Rules (IP filter groups), andActions. When you create a Policy, you define which Devices are affected, which Rules arechecked, and what Actions are taken on the specified interface.Policies are applied according to the precedence order that you assign in the Policies screen.Adding a policyTo add a policy:1 On the navigation tree, click the Services key and click the Policy Management key.2 Click the QoS key and click the Policies heading.3 Click the Add button.Or, right click the Policies heading and click Add.The Add Policies screen appears.4 Configure the Policy parameters according to the following table.5 Click the Save button.Table 250 QoS Policy parametersAttribute DescriptionName Enter the name of the Policy.Filter Select the filter group that is associated with this policy.You must add a filter group, using the Rules heading, before you can choose it from this box.Filter Type Shows the type of filter group that is associated with this policy.This is a read only attribute.Interface Group Select the Interface group that is associated with this policy.You must add an interface group, using the Devices heading, before you can choose it fromthis box.Interface Direction Shows the direction of packet flow at the interface to which this policy applies.This is a read only attribute.Order Enter the number used to determine the order of precedence for this policy.Nortel Networks recommends that you consider an order numbering strategy (for the values inthe Order field) as you configure policies. The policies in the Policy Table are arranged inascending order according to value in the Order column. By establishing a policy orderingscheme in multiples of, for example, 10 (Order 10, Order 20, Order 30, Order 40, and so on),you are able to insert policies in the appropriate filter precedence location and still retain theprecedence of the remaining policies.Action Select the action that is performed with policy.You must add an action, using the Actions heading, before you can choose it from this box.
