Create an Exception Class

When PacketWise is classifying a traffic flow, it searches the traffic tree, beginning at the top, to find a match for the flow. As soon as PacketWise finds a match, it categorizes the flow into the appropriate class and looks no further down the tree (even if there may be another class that matches the traffic flow). When you want to change the order that PacketWise uses to find a match for a traffic flow, you can create exception classes. An exception class sorts above standard classes in a traffic subtree. Exception classes give you the ability to redefine the search order that PacketWise uses to find a match for a traffic flow. Typically, you do not need to change the position that PacketWise defines for a class — this is for special exceptions only (hence, the name exception class).

Certain classes (/Inbound, /Outbound, and Default classes) cannot be configured as exception classes.

Note: Configuring too many classes as exceptions will degrade PacketShaper performance.

To perform this task from PolicyCenter, you must first select a configuration from the Editing Configuration drop-down list at the top of the page.

To designate an existing class as an exception:

1. Click the manage tab.

2. In the left window pane, select the class you want to designate as an exception. The Traffic Class window displays options for the selected class. The default class type is Standard.

3. Next to Type, select Exception.

4. Click apply changes.

The class now appears at, or near, the top of the subtree. The "!" on the class icon indicates the class is an exception.