Cisco WS-X4604-GWY - VoIP Gateway Especificaciones descargar pdf (Pagina 73)

CHAPTER

3-1

Cisco IP Telephony Network Design Guide

78-11103-03

Cisco CallManager Clusters

This chapter discusses the concept, provisioning, and configuration of

Cisco CallManager clusters. Clusters, which were introduced with

Cisco CallManager Release 3.0, provide a mechanism for distributing call

processing seamlessly across a converged IP network infrastructure to support IP

telephony, facilitate redundancy, and provide feature transparency and scalability.

This chapter discusses the operation of clusters within both campus and WAN

environments and proposes reference designs for implementation. The following

sections cover these topics:

• Cluster Operation and Scalability Guidelines, page 3-1

• Cisco CallManager Redundancy, page 3-6

• Campus Clustering Guidelines, page 3-12

• Intercluster Communication, page 3-14

• Intracluster and Intercluster Feature Transparency, page 3-21

Cluster Operation and Scalability Guidelines

With Cisco CallManager Release 3.0(5), a cluster can contain as many as eight

servers, of which six are capable of call processing. The other two servers can be

configured as a dedicated database publisher and a dedicated TFTP server,

respectively.

The database publisher is used to make all configuration changes and also to

produce call detail records. The TFTP server facilitates the downloading of

configuration files, device loads (operating code), and ring types.

1 2 ... 68 69 70 71 72 73 74 75 76 77 78 ... 261 262

Sin comentarios

Cisco WS-X4604-GWY - VoIP Gateway Especificaciones Pagina 73