Cisco Cisco Expressway
On every other subordinate Expressway already in the cluster (not the Expressway being added):
1.
Go to System > Clustering and configure the fields as follows:
Cluster name
Identical to the Cluster name configured on the primary Expressway
Configuration primary
Same number as chosen on the primary Expressway
Cluster IP version
Same version as chosen on the the primary Expressway
TLS verification mode
Same setting as chosen on the primary Expressway
Peer 1 address …Peer 6
address
address
The addresses should be the same, and in the same order, as those entered on
the primary Expressway
the primary Expressway
2.
Click Save.
On the additional subordinate Expressway being added to the cluster:
1.
Log in as admin on an SSH or other CLI interface. At the Expressway command prompt, type:
xcommand DefaultValuesSet Level: 2
xcommand DefaultLinksAdd
Note
: This command removes any LDAP authentication configuration – ensure that you have the web admin
password before executing this command.
2.
Go to Users > Administrator accounts.
3.
Delete all entries except the default admin account.
4.
Go to System > DNS and ensure that System host name is the DNS hostname for this Expressway (typically
the same as the System name in System > Administration, but excluding spaces, and unique for each
Expressway in the cluster). If it is not configured correctly, set it up appropriately and click Save.
the same as the System name in System > Administration, but excluding spaces, and unique for each
Expressway in the cluster). If it is not configured correctly, set it up appropriately and click Save.
Note: <System host name>.<DNS domain name> = FQDN of this Expressway
5.
Go to System > Clustering and configure the fields as follows:
Cluster name
Identical to the Cluster name configured on the primary Expressway
Configuration primary
Same number as chosen on the primary Expressway
Cluster IP version
Same version as chosen on the the primary Expressway
TLS verification mode
Same setting as chosen on the primary Expressway
Peer 1 address …Peer 6
address
The addresses should be the same, and in the same order, as those entered on
the primary Expressway
the primary Expressway
6.
Click Save.
Note that a cluster communication failure alarm will be raised on this Expressway peer advising that this new
Expressway is not communicating – this will clear after the restart.
Expressway is not communicating – this will clear after the restart.
7.
Restart the Expressway (go to Maintenance > Restart options, then click Restart and confirm OK).
If multiple peers need restarting: restart each peer in turn, waiting for the peer to be accessible through the
web interface before restarting the next peer.
web interface before restarting the next peer.
8.
After the restart, wait approximately 2 minutes – this is the frequency with which configuration is copied from
the primary.
the primary.
18
Cisco Expressway Cluster Creation and Maintenance Deployment Guide
Add a Peer to a Cluster