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Cisco 12000/10700 v3.1.1 Router Manager User Guide
OL-4455-01
Chapter 11 Layer 3 QoS
The Workflow for WRED/DRR
Figure 11-9 CAR Policy Status Window
Step 2 Choose the correct Chassis, Module, a nd IP Interface from the list boxes at the left of the window.

The Workflow for WRED/DRR

To begin working with WRED objects, the first step is to create and configure a CoS queue group (which
includes DRR, or Distributed Round Robin). You can then apply the created CoS queue group to one or
multiple interface s. At a time, only one CoS queue group can be applied to any numbe r of interfac es.
At any given time, you also have the optio n to edit, de lete, or chan ge the asso ciatio n of a CoS queue
group.

Engine Type Support for WRED

If an attempt is made to apply a WRED policy to an engine 1 or 3 module, then the request will be refused
and an appropriate error message issued to the client. The full range of WRED functionality will be
supported for engine 0, 2, 4 and 4+ modules.