Cisco Cisco TelePresence Video Communication Server Expressway
3. Configure the fields as follows:
VCS Control
VCS Expressway
Name
Not applicable
Enter exampleauth
Password
Not applicable
Enter ex4mpl3.c0m
4. Click Create credential.
Configuring traversal zones for Unified Communications
To support Unified Communications features such as mobile and remote access or Jabber Guest, there must
be a secure traversal zone connection between the VCS Control and the VCS Expressway:
be a secure traversal zone connection between the VCS Control and the VCS Expressway:
n
The VCS Control and VCS Expressway must be configured with a zone of type Unified Communications
traversal. This automatically configures an appropriate traversal zone (a traversal client zone when
selected on a VCS Control, or a traversal server zone when selected on a VCS Expressway) that uses SIP
TLS with TLS verify mode set to On, and Media encryption mode set to Force encrypted.
traversal. This automatically configures an appropriate traversal zone (a traversal client zone when
selected on a VCS Control, or a traversal server zone when selected on a VCS Expressway) that uses SIP
TLS with TLS verify mode set to On, and Media encryption mode set to Force encrypted.
n
Both VCSs must trust each other's server certificate. As each VCS acts both as a client and as a server
you must ensure that each VCS’s certificate is valid both as a client and as a server.
you must ensure that each VCS’s certificate is valid both as a client and as a server.
n
If an H.323 or a non-encrypted connection is also required, a separate pair of traversal zones must be
configured.
configured.
Neighboring between VCS clusters
You can neighbor your local VCS (or VCS cluster) to a remote VCS cluster; this remote cluster could be a
neighbor, traversal client, or traversal server to your local VCS. In this case, when a call is received on your
local VCS and is passed via the relevant zone to the remote cluster, it will be routed to whichever peer in that
neighboring cluster has the lowest resource usage. That peer will then forward the call as appropriate to one
of its:
neighbor, traversal client, or traversal server to your local VCS. In this case, when a call is received on your
local VCS and is passed via the relevant zone to the remote cluster, it will be routed to whichever peer in that
neighboring cluster has the lowest resource usage. That peer will then forward the call as appropriate to one
of its:
n
locally registered endpoints (if the endpoint is registered to that peer)
n
peers (if the endpoint is registered to another peer in that cluster)
n
external zones (if the endpoint has been located elsewhere)
Lowest resource usage is determined by comparing the number of available traversal calls (maximum -
current use) on the peers, and choosing the peer with the highest number. Peers that are in maintenance
mode are not considered.
current use) on the peers, and choosing the peer with the highest number. Peers that are in maintenance
mode are not considered.
When configuring a connection to a remote cluster, you create a single zone and configure it with details of all
the peers in the cluster. Adding this information to the zone ensures that the call is passed to that cluster
regardless of the status of the individual peers.
the peers in the cluster. Adding this information to the zone ensures that the call is passed to that cluster
regardless of the status of the individual peers.
Cisco TelePresence Video Communication Server Basic Configuration (Control with Expressway) Deploy-
ment Guide (X8.5.2)
ment Guide (X8.5.2)
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Routing configuration