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Cisco IP Telephony Network Design Guide
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Contents
Quality of Service 2-28
Traffic Classification Types 2-28
Trust Boundaries 2-29
Traffic Classification at Layer 2 2-30
Traffic Classification at Layer 3 2-34
Layer 3 Traffic Classification on the Cisco Catalyst 6000 2-34
Summary of Capabilities and Recommendations 2-36
CHAPTER
3 Cisco CallManager Clusters 3-1
Cluster Operation and Scalability Guidelines 3-1
Device Weights 3-3
Intracluster Communication 3-5
Cisco CallManager Redundancy 3-6
Redundancy Group Configurations 3-6
Device Pool Configuration 3-9
Campus Clustering Guidelines 3-12
Intercluster Communication 3-14
Cluster Provisioning for the Campus 3-14
Clusters for Multisite WAN with Distributed Call Processing 3-15
Clusters for Multisite WAN with Centralized Call Processing 3-18
Intracluster and Intercluster Feature Transparency 3-21
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