Users Guide

Table Of Contents
Contents 47
Configuring DiffServ Policy Using ACLs . . . . . 1558
DiffServ for VoIP
. . . . . . . . . . . . . . . . . 1560
WRED
. . . . . . . . . . . . . . . . . . . . . . . . . . 1563
WRED Processing
. . . . . . . . . . . . . . . . 1563
WRED Drop Probabilities
. . . . . . . . . . . . . 1563
Exponential Weighting Constant
. . . . . . . . . 1564
WRED Color-Aware Processing
. . . . . . . . . 1564
Simple Meter Implementation
. . . . . . . . . . 1565
Single Rate Meter Implementation
. . . . . . . . 1565
Two-Rate Meter Implementation
. . . . . . . . . 1566
44 Class-of-Service . . . . . . . . . . . . . . . . . 1567
CoS Overview . . . . . . . . . . . . . . . . . . . . . 1567
What Are Trusted and Untrusted Port Modes?
. 1568
How Is Traffic Shaping Used on Egress Traffic?
. 1568
How Are Traffic Queues Configured?
. . . . . . 1569
Which Queue Management Methods Are Supported?
1570
CoS Queue Usage
. . . . . . . . . . . . . . . . 1571
Default CoS Values
. . . . . . . . . . . . . . . . . . 1571
Configuring CoS (Web)
. . . . . . . . . . . . . . . . 1573
Mapping Table Configuration
. . . . . . . . . . 1573
Interface Configuration
. . . . . . . . . . . . . . 1575
Interface Queue Configuration
. . . . . . . . . . 1576
Interface Queue Drop Precedence Configuration
1577
Configuring CoS (CLI)
. . . . . . . . . . . . . . . . . 1579
Mapping Table Configuration
. . . . . . . . . . 1579
CoS Interface Configuration Commands
. . . . . 1580
Interface Queue Configuration
. . . . . . . . . . 1580
Configuring Interface Queue Drop Probability
. . 1582