Cisco Cisco TelePresence Video Communication Server Expressway Maintenance Manual
Troubleshooting cluster replication problems
Cluster replication can fail for a variety of reasons. This section describes the most common problems and
how to resolve them.
how to resolve them.
.
Some peers have a different master peer defined
1. For each peer in the cluster, go to the
System > Clustering
page.
2. Ensure each peer identifies the same Configuration master.
Unable to reach the cluster configuration master peer
The VCS operating as the master peer could be unreachable for many reasons, including:
n
network access problems
n
VCS unit is powered down
n
incorrectly configured IP addresses
n
incorrectly configured IPsec keys - ensure each peer is configured with the same Cluster pre-shared key
value
value
n
different software versions
"Manual synchronization of configuration is required" alarms are raised on peer VCSs
1. Log in to the peer as admin through the CLI (available by default over SSH and through the serial port).
2. Type xCommand ForceConfigUpdate.
This will delete the non-master VCS configuration and force it to update its configuration from the master
VCS.
VCS.
CAUTION:
never issue this command on the master VCS, otherwise all configuration for the cluster will be
lost.
Cisco TelePresence Video Communication Server Administrator Guide (X8.5.1)
Page 204 of 563
Clustering and peers
Troubleshooting cluster replication problems