Cisco Cisco TelePresence Video Communication Server Expressway
Appendix 1 - Troubleshooting
Cisco VCS Deployment Guide: Microsoft Lync 2010 and Cisco VCS X6.1
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OCS Relay FindMe™ users fail to register.
If OCS Relay fails to register FindMe™ users (Registration status = failed), check:
1. The FindMe™ name is correctly entered into Active Directory.
2. A Lync client can register as the FindMe™ name.
3. The Cisco VCS SIP registration proxy mode is set to Proxy to known only (or Proxy to any).
4. That there is no transform that may be inadvertently corrupting the registration – e.g. appending
an @domain to a name which contains no @ (as registrations proxied to Lync Server have a URI
which is the domain only - no @).
which is the domain only - no @).
5. Check CPL is as defined in the ‘OCS Relay configuration of "Lync gateway” Cisco VCS(s)’
section.
6. Check that the zone details have been updated as defined in ‘OCS Relay configuration of “Lync
Troubleshooting OCS Relay
OCS Relay produces an event log file that contains useful information about its operation.
This is only available through root login to Cisco VCS. It is a big file and so it is usually best to ‘tail’ the
file to look at the last few entries.
file to look at the last few entries.
To view the last 300 entries of the OCS Relay log file:
1. Login as root on Cisco VCS
2. Type:
tail -300 /mnt/harddisk/log/elbe.log
Lync Server problems
As a starting point, running the Lync Server 2010 ‘Best Practices Analyzer’ will help identify
configurations that may be incorrect on Lync Server. Details and the download may be found at:
configurations that may be incorrect on Lync Server. Details and the download may be found at:
Lync Server stops running after an upgrade
Ensure that Automatic upgrades are turned off. There are occasions when an upgrade comes through
which will affect operation of Lync Server. Check the validity of the upgrade before installing.
which will affect operation of Lync Server. Check the validity of the upgrade before installing.
Problems with certificates
When creating certificates to load onto Cisco VCS for use with Lync Server (e.g. purchased from a
certification authority) it is vital that the Subject Name contains the Lync Gateway FQDN (Lync
Gateway cluster FQDN if present), and the Subject Alternate Name contains the FQDN for all Lync
Gateways if part of a cluster.
certification authority) it is vital that the Subject Name contains the Lync Gateway FQDN (Lync
Gateway cluster FQDN if present), and the Subject Alternate Name contains the FQDN for all Lync
Gateways if part of a cluster.
If both Subject name and Subject Alternate Name are used, then the name entered in the Subject
name must also appear in the Subject Alternative Name list.
name must also appear in the Subject Alternative Name list.