Cisco Cisco TelePresence Video Communication Server Expressway 관리 매뉴얼
Clustering and peers
Cisco VCS Administrator Guide (X7.0)
Page 138 of 488
You should only make configuration changes on the master VCS. Any changes made on other peers are
not reflected across the cluster, and will be overwritten the next time the master’s configuration is
replicated across the peers. The only exceptions to this are:
not reflected across the cluster, and will be overwritten the next time the master’s configuration is
replicated across the peers. The only exceptions to this are:
n
some specific configuration items that are
n
user account (FindMe) details — these can be maintained on any peer
You may need to wait up to one minute before changes are updated across all peers in the cluster.
Secure communication between peers
The VCS uses IPsec (Internet Protocol Security) to enable secure communication between each cluster
peer. Authentication is carried out through the use of a pre-shared access key.
peer. Authentication is carried out through the use of a pre-shared access key.
Each peer in the cluster must be individually configured with the IP address and associated access key
of every other peer in that cluster.
of every other peer in that cluster.
Alternates
”Alternate” is an H.323 term for a system used to provide redundancy to a Primary gatekeeper. Prior to
version X3.0 the VCS supported Alternates, where the configuration would comprise a single active VCS
with additional unused alternate VCSs on standby. From X3.0 onwards, redundancy (along with other
features) is provided by clusters of peers. Peers support both H.323 and SIP and all peers can take
registrations and calls. For H.323 the Alternates returned in a Registration Confirm message list all the
peers in the cluster. Also note that some versions of TMS refer to peers as "members".
version X3.0 the VCS supported Alternates, where the configuration would comprise a single active VCS
with additional unused alternate VCSs on standby. From X3.0 onwards, redundancy (along with other
features) is provided by clusters of peers. Peers support both H.323 and SIP and all peers can take
registrations and calls. For H.323 the Alternates returned in a Registration Confirm message list all the
peers in the cluster. Also note that some versions of TMS refer to peers as "members".