Enterprise QoS Solution Reference Network Design Guide

Contents
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Marking and Re-Marking 5-7
Three-Class Provider-Edge Model: CE Design 5-9
Four-Class Provider-Edge Model: CE Design 5-11
Five-Class Provider-Edge Model: CE Design 5-13
Provider-Edge QoS Considerations 5-15
Service Provider-to-Enterprise Models 5-15
Three-Class Provider-Edge Model: PE Design 5-16
Four-Class Provider-Edge Model: PE Design 5-16
Five-Class Provider-Edge Model: PE Design 5-17
MPLS DiffServ Tunneling Modes 5-18
Uniform Mode 5-18
Short Pipe Mode 5-21
Pipe Mode 5-24
Summary 5-32
References 5-32
Standards 5-32
Books 5-33
Cisco Documentation 5-33
CHAPTER 6 IPSec VPN QoS Design 6-1
Site-to-Site V3PN QoS Considerations 6-2
IPSec VPN Modes of Operation 6-3
IPSec Tunnel Mode (No IP GRE Tunnel) 6-3
IPSec Transport Mode with an Encrypted IP GRE Tunnel 6-4
IPSec Tunnel Mode with an Encrypted IP GRE Tunnel 6-4
Packet Overhead Increases 6-5
cRTP and IPSec Incompatibility 6-8
Prefragmentation 6-9
Bandwidth Provisioning 6-9
Logical Topologies 6-10
Delay Budget Increases 6-11
ToS Byte Preservation 6-12
QoS Pre-Classify 6-13
Pre-Encryption Queuing 6-14
Anti-Replay Implications 6-17
Control Plane Provisioning 6-19
Site-to-Site V3PN QoS Designs 6-20
Six-Class Site-to-Site V3PN Model 6-20
Eight-Class Site-to-Site V3PN Model 6-21
Enterprise QoS Solution Reference Network Design Guide
Version 3.3