Users Guide

Contents 45
WRED Processing . . . . . . . . . . . . . . . . 1484
WRED Drop Probabilities
. . . . . . . . . . . . . 1484
Exponential Weighting Constant
. . . . . . . . . 1485
WRED Color-Aware Processing
. . . . . . . . . 1485
Simple Meter Implementation
. . . . . . . . . . 1486
Single Rate Meter Implementation
. . . . . . . . 1486
Two-Rate Meter Implementation
. . . . . . . . . 1487
42 Class-of-Service . . . . . . . . . . . . . . . . . 1489
CoS Overview . . . . . . . . . . . . . . . . . . . . . 1489
What Are Trusted and Untrusted Port Modes?
. 1490
How Is Traffic Shaping Used on Egress Traffic?
. 1490
How Are Traffic Queues Configured?
. . . . . . 1491
Which Queue Management Methods Are
Supported? . . . . . . . . . . . . . . . . . . . . 1492
CoS Queue Usage
. . . . . . . . . . . . . . . . 1493
Default CoS Values
. . . . . . . . . . . . . . . . . . 1493
Configuring CoS (Web)
. . . . . . . . . . . . . . . . 1495
Mapping Table Configuration
. . . . . . . . . . 1495
Interface Configuration
. . . . . . . . . . . . . . 1497
Interface Queue Configuration
. . . . . . . . . . 1498
Interface Queue Drop Precedence
Configuration . . . . . . . . . . . . . . . . . . . 1499
Configuring CoS (CLI)
. . . . . . . . . . . . . . . . . 1501
Mapping Table Configuration
. . . . . . . . . . 1501
CoS Interface Configuration Commands
. . . . . 1502
Interface Queue Configuration
. . . . . . . . . . 1502
Configuring Interface Queue Drop Probability
. . 1504
CoS Configuration Example
. . . . . . . . . . . . . . 1505