CHAPTER
11-1
Cisco 12000/10700 v3.1.1 Router Manager User Guide
OL-4455-01
11

Layer 3 QoS

This chap ter describes ho w to create an d config ure Layer 3 QoS (Quality of Service), Commit ted Access
Rate (CAR) policie s, Cos Queue gr oups and Weighte d Random Ea rly Dete ction To-Fabric (WR ED
ToFab) policies.
The Layer 3 QoS dialogs are not available for the 10720 chassis.
This chapter contains the following information:
Launch ing the La yer 3 QoS Windows
CAR and WRED Overview
The Workflow for CAR
CAR Policy Configuration
Access List Configuration
CAR Policy Apply
CAR Policy Status
The Workflow for WRED/DRR
CoS Queue Group Configurat ion
WRED Tx Configuration
WRED ToFab Configuratio n
WRED Rx Co nfiguration

Launching th e Layer 3 QoS Windows

Table 11-1 display s the Layer 3 Qo S windows that can be laun ched fr om each of the ava ilable obj ect
types. For example, the CAR Pol icy Configuratio n window can be launch ed for 120 00 Series Rou ter
chassis from a Site, Chassis, Module, Interface or a CAR Policy, but not from the WRED-MDRR
conta iner or a CoS Qu eue G roup obj ect.
Note Table 11-1 lists the menu options to launch the Layer3QoS dialogs from the site level.