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Chapter 20: Redundancy Configuration
5. Log onto the Lync Server.
6. Under Voice Routing, choose the Route tab and configure the IP addresses of both
the primary and secondary server as the PTSN gateway.
Step 6: Set the Secondary Server to Assume Control
1. Log into MaxACD Administrator on the secondary server.
2. On the System tab, choose Redundancy.
3. Check the option Automatically assume control when active system is not
available.
Note:
This option is only available for the standby server. Once switchover occurs, the
formerly active server is now the standby server. This option for the new standby
system will be unchecked. You should check it manually after making sure that
the new standby system is recovered.
Step 7: Configure the DNS Name
In order for redundancy to work, follow these guidelines:
•
You must set up a single DNS name that maps to the two different IP addresses
(primary and secondary servers)
•
The DNS name must be a new (unused) FQDN
•
Clients must refer to the FQDN server pool name, rather than an individual IP
address, in order to connect to MaxACD
Important:
Do not use an existing machine name as the DNS name.
When external services and applications query the DNS name, they will get two IP
addresses: the first one is the address of the primary server; the second is the address
of secondary server. External services and applications will try to connect to the first IP
address. If that connection fails, they will then try to connect to the second IP address.
The next connection will always try the address which worked at last login.
The next example will work for MaxACD redundancy:
MaxACDSys with this IP address: 10.30.5.212
•
•
MaxACDSys with this IP address: 10.30.5.171
With these settings, all client applications would point to MaxACDSys.domain.com
instead of pointing to one IP address.
The next example will not work; redundancy will fail:
•
MaxABC with this IP address: 10.30.5.212
MaxXYZ with this IP address: 10.30.5.171
•
You should not create an entry MaxABC for 10.30.5.171 in the DNS server and have all
clients point to it. If you do, the DNS server will remove the entry automatically and
redundancy will fail.
Two FQDN names are also supported: one for the public address and another for the
private IP address.
When switchover occurs, external services and applications switch to the other IP
address and re-login to new active system if necessary.
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MaxACD Administrator Manual
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Troubleshooting
