Cisco Cisco TelePresence Video Communication Server Expressway
Ensure that Local hostname and DNS domain are configured
For each "Lync gateway" VCS peer, ensure that a unique Local host name is set up and that the DNS
Domain name is set up:
Domain name is set up:
1. Go to
System > DNS
and set:
a. Local host name to a unique hostname for this VCS.
b. Domain name to the domain name for this VCS.
b. Domain name to the domain name for this VCS.
2. Click Save.
Note that:
n
the Local host name concatenated with DNS Domain name is the routable FQDN of this VCS.
n
if these items are not configured and the connection between Lync Server and VCS is TLS, then although
the neighbor zone goes active and VCS can send messaging to Lync Server, Lync Server will never open a
TLS connection back to VCS, resulting in no calls from Lync to VCS and other strange behavior.
the neighbor zone goes active and VCS can send messaging to Lync Server, Lync Server will never open a
TLS connection back to VCS, resulting in no calls from Lync to VCS and other strange behavior.
"Lync gateway" VCS: Ensure that cluster name is configured
Lync will be configured with a static route that uses the "Lync gateway" VCS's cluster name / FQDN (e.g.
lyncvcs.ciscotp.com) regardless of whether the "Lync gateway" VCS is part of a cluster or not.
lyncvcs.ciscotp.com) regardless of whether the "Lync gateway" VCS is part of a cluster or not.
For each "Lync gateway" VCS peer, ensure that Cluster name (
System > Clustering
) is the same, and is
set up to be the FQDN of the cluster. Note that this should have been set up when the cluster was created –
see VCS Cluster Creation and Maintenance Deployment Guide. If the cluster name needs changing follow
the procedure in that document.
see VCS Cluster Creation and Maintenance Deployment Guide. If the cluster name needs changing follow
the procedure in that document.
"Lync gateway" VCS: Configure an NTP server
On each "Lync gateway" VCS peer:
1. Go to
System > Time
.
2. Set NTP server 1 to the IP address of an NTP server.
3. Optionally set NTP server 2 to the IP address of an additional NTP server.
4. Set Time zone as appropriate to the location of the VCS.
You can find out which time server that the Windows server (the Lync Server) is using by typing
‘net time /querysntp’ from the windows command line.
‘net time /querysntp’ from the windows command line.
"Lync gateway" VCS: Ensure that TLS is enabled in SIP configuration
1. Go to
Configuration > Protocols > SIP
.
2. Ensure that TLS mode is On.
Lync Server configuration
The configuration will vary depending upon the architecture of the Lync Server installation.
n
If a Lync Director is in use, then configure the Lync Director (pool) to trust the "Lync gateway" VCS and to
route traffic to VCS. Other FEPs receiving calls for the video domain may not know how to route them
(depending on Lync SIP routing configuration), and may pass the calls to the Director pool for routing.
route traffic to VCS. Other FEPs receiving calls for the video domain may not know how to route them
(depending on Lync SIP routing configuration), and may pass the calls to the Director pool for routing.
Cisco TelePresence Microsoft Lync and Cisco VCS Deployment Guide (X8.5)
Page 29 of 83
Enabling endpoints registered on the video network to call clients registered on Lync