Cisco Cisco Expressway
Appendix 1: Troubleshooting
Expressway alarms and warnings
“Cluster name not configured: if clustering are in use a cluster name
must be defined”
must be defined”
Ensure that the same cluster name is configured on each Expressway in the cluster.
The Cluster name should be the routable Fully Qualified Domain Name used in SRV records that address
this Expressway cluster, for example "cluster1.example.com". (See
this Expressway cluster, for example "cluster1.example.com". (See
).
“Cluster replication error: <details> manual synchronization of
configuration is required”
configuration is required”
This may be:
n
“Cluster replication error: manual synchronization of configuration is required”
n
"Cluster replication error: cannot find master or this slave's peer configuration file, manual synchronization
of configuration is required"
of configuration is required"
n
"Cluster replication error: configuration master ID is inconsistent, manual synchronization of configuration
is required"
is required"
n
"Cluster replication error: this peer's configuration conflicts with the master's configuration, manual
synchronization of configuration is required"
synchronization of configuration is required"
If a non-master Expressway reports an alarm: “Cluster replication error – <details> synchronization of
configuration”
configuration”
On that non-master Expressway:
1. Log in as admin on an SSH or other CLI interface.
2. At the command prompt type:
xcommand ForceConfigUpdate
This will delete the non-master Expressway configuration and then force it to update its configuration from
the master Expressway.
This will delete the non-master Expressway configuration and then force it to update its configuration from
the master Expressway.
CAUTION
: Only use this command if the configuration on the master Expressway is known to be in a
good state. We recommend that you take a backup before running this command.
"Cluster replication error: the NTP server is unreachable"
Configure an accessible NTP server on the Expressway
System > Time
page.
"Cluster replication error: the local Expressway does not appear in the
list of peers"
list of peers"
Check and correct the list of peers for this Expressway on the master Expressway, and copy to all other
Expressway peers (
Expressway peers (
System > Clustering
).
Cisco Expressway Cluster Creation and Maintenance Deployment Guide (X8.5.2)
Page 28 of 38
Appendix 1: Troubleshooting