Cisco Cisco Expressway
Remove a Live Peer From a Cluster (Permanently)
This process removes one Expressway peer from an existing cluster. Configuration replication to this Expressway will be
stopped and the Expressway will no longer be included in the list of peers in the cluster.
stopped and the Expressway will no longer be included in the list of peers in the cluster.
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procedure instead.
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Before starting:
1.
Ensure that the Expressway to be removed from the cluster is not indicated as the primary peer.
If it is the primary, see
On the Expressway that is being removed:
1.
Log into the web interface.
2.
Go to System > Clustering:
a.
Change the Cluster name to a unique ID for this Expressway (ideally to the routable Fully Qualified Domain
Name used in SRV records that address this individual Expressway, for example "expe1.example.com". See
Name used in SRV records that address this individual Expressway, for example "expe1.example.com". See
.)
b.
Delete the Cluster pre-shared key.
c.
Delete all entries in the Peer x IP address fields.
3.
Click Save.
Note that:
—
An alarm similar to that shown below may appear on the web interface and CLI of the Expressway being
removed. This is not a problem, the alarm will be cleared when the Expressway is restarted:
removed. This is not a problem, the alarm will be cleared when the Expressway is restarted:
4.
If Microsoft Lync B2BUA was used in the cluster:
a.
Go to Applications > B2BUA > Microsoft Lync > Configuration.
b.
If Microsoft Lync B2BUA is
Enabled, change it to Disabled and click Save.
5.
Restart the Expressway (go to Maintenance > Restart options, then click Restart and confirm OK).
On the primary Expressway:
1.
Go to System > Clustering.
2.
Delete the IP address of the Expressway that has been removed.
3.
If the Expressway being removed is not the last field in the list, move any other IP addresses up the list so that
there are no empty fields between entries.
there are no empty fields between entries.
4.
If the primary Expressway peer’s IP address has been moved up the list in the previous step, alter the
Configuration master value to match its new location.
Configuration master value to match its new location.
5.
Click Save.
On all the remaining subordinate Expressway peers:
1.
Go to System > Clustering.
2.
Edit the Peer x IP address and Configuration master fields so that they are identical to those configured on the
primary Expressway.
primary Expressway.
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Cisco Expressway Cluster Creation and Maintenance Deployment Guide