Cisco Cisco Expressway
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.
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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
).
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A valid and working NTP server configured (
System > Time
; in the Status section, the State should
be “
Synchronized
”).
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No peers configured (
System > Clustering
– all Peer x IP address fields on this page should be blank.
If not, delete any entries and click Save).
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H.323 Mode set to On (
Configuration > Protocols > H.323
)
Go to
Status > Alarms
. If there is an alarm that the Expressway must be restarted, go to
Maintenance >
Restart options
and then click Restart.
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.
1. Enable maintenance mode:
a. Go to
Maintenance > Maintenance mode
.
b. Set Maintenance mode to On.
c. Click Save and click OK on the confirmation dialog.
c. Click Save and click OK on the confirmation dialog.
2. Wait for all calls to clear on this peer.
If necessary, manually remove any calls on this peer that do not clear automatically (using the web
browser go to
browser go to
Status > Calls
, then select the check box next to the calls you want to terminate and click
Disconnect).
On the master Expressway:
1. Go to
System > Clustering
.
One or more of the Peer x IP address fields should be empty.
2. In the first empty field, enter the IP address of the new Expressway peer.
Note:
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Only one Expressway must be added to the cluster at a time (repeat the whole process if multiple
Expressway peers are being added).
Expressway peers are being added).
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If the new Expressway peer has advanced networking, the Peer IP address MUST specify the LAN 1
interface address – also this interface must not have NAT enabled on it.
interface address – also this interface must not have NAT enabled on it.
3. Click Save.
Peer 1 should indicate ‘
This system
’. The new peer may indicate ‘
Unknown
’ and then with a refresh
should indicate ‘
Failed
’ as the Expressway is not completely added to the cluster.
Note:
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A cluster communication failure alarm will be raised on the master and on other non-master peers
already in the cluster advising that this new Expressway peer is not communicating – this will clear
later.
already in the cluster advising that this new Expressway peer is not communicating – this will clear
later.
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Cluster configuration replication is suspended at this point until the new Expressway has been
completely added. Any changes made to the configuration of the cluster will not be replicated until this
Expressway has been completely added.
completely added. Any changes made to the configuration of the cluster will not be replicated until this
Expressway has been completely added.
Cisco Expressway Cluster Creation and Maintenance Deployment Guide (X8.6)
Page 13 of 40
Adding an Expressway to an existing cluster