Clustering And Peers; About Clusters - Cisco TelePresence Video Communication Server Administrator's Manual

Clustering and peers

This section describes how to set up a cluster of VCS peers. Clustering is used to increase the
capacity of your VCS deployment and to provide resiliency. The section includes:
an overview of clustering
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guidelines for setting up
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a list of configuration that is not replicated
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a troubleshooting guide
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how registrations and
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how clustering works with FindMe,
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the purpose of the cluster subzone
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how to neighbor a local VCS or cluster to a remote VCS cluster
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About clusters

A VCS can be part of a cluster of up to six VCSs. Each VCS in the cluster is a peer of every other
VCS in the cluster. When creating a cluster, you define a cluster name and nominate one peer as the
master from which all relevant configuration is replicated to the other peers in the cluster. Clusters are
used to:
increase the capacity of your VCS deployment compared with a single VCS
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provide redundancy in the rare case that a VCS becomes unavailable (for example, due to a
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network or power outage)
Peers share information with each other about their use of bandwidth, registrations, and user
accounts. This allows the cluster to act as one large VCS Local Zone as shown in the example below.
Cisco VCS Administrator Guide (X6.1)
and maintaining a cluster
across cluster peers
for cluster replication problems
bandwidth are shared across peers
Presence and TMS
Clustering and peers
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