Cisco Cisco Expressway
Setting up a new cluster of Expressway peers
Note: This procedure requires a period of downtime for the Expressway service. Ensure that these
instructions are followed in a scheduled maintenance window.
instructions are followed in a scheduled maintenance window.
Process summary
This process initiates a cluster of a single Expressway. Do not use this process if the cluster already exists.
To complete the cluster containing multiple Expressways, when this section is complete, follow the
instructions in
instructions in
Prerequisites
n
If a firewall exists between cluster peers, it must be configured to permit the traffic documented in
.
n
All Expressways to be included in the cluster must be running the same version (X8.5) of Expressway
software.
software.
Set up the master peer of the cluster
This process sets up the first (Master) peer of this new cluster – additional peers are added afterwards using
the
the
process.
Before proceeding, the Expressway that will be the master must be determined. The Master Expressway will
be the source of the configuration information for all Expressway peers in the cluster. Non-master
Expressway peers will have their configuration deleted and replaced by that from the Master.
be the source of the configuration information for all Expressway peers in the cluster. Non-master
Expressway peers will have their configuration deleted and replaced by that from the Master.
On other Expressways:
Check that no other Expressway (anywhere in the organization) has this Expressway’s IP address in its
clustering peers list.
clustering peers list.
On this Master Expressway:
1. Check that the Expressway is running X8.5 software.
2. Backup the Expressway (
Maintenance > Backup and restore
).
3. Using the web interface, review the configuration to ensure that the Expressway has:
l
A valid Ethernet speed (
System > Ethernet
).
l
Valid IP address and IP gateway (
System > IP
).
l
The same set of option keys installed as those that will be installed on all other peers of the cluster
(
(
Maintenance > Option keys
).
Note that the number of call license keys may be different on different peers; all other license keys
must be identical on each peer.
must be identical on each peer.
l
At least one valid DNS server configured, and that if unqualified DNS names are used elsewhere (e.g.
for the NTP server), that the correct Domain name is also configured (Domain name is added as a
suffix to an unqualified DNS name to make it into an FQDN) (
for the NTP server), that the correct Domain name is also configured (Domain name is added as a
suffix to an unqualified DNS name to make it into an FQDN) (
System > DNS
).
l
A valid and working NTP server configured (
System > Time
; in the Status section, the State should
be “
Synchronized
”).
Cisco Expressway Cluster Creation and Maintenance Deployment Guide (X8.5)
Page 9 of 38
Setting up a new cluster of Expressway peers