Nortel Call Center Server Installation And Maintenance Manual page 1211

You can configure the Active and Standby Servers with unique ELAN IP
addresses or with the same ELAN IP address. (If you use the same ELAN IP
address, make sure that the Standby Server's ELAN NIC is not connected to the
ELAN, otherwise there will be an IP conflict). If your system includes entities
that are configured with the Symposium ELAN IP address, for example DMS/
SL-100, you must configure the Standby Server with the same ELAN IP address
as the Active Server. You can leave the Standby Server connected to the ELAN
while the server is operating as the Standby Server.
When performing a switchover, disconnect the previously Active Server from
the ELAN. Do this by physically disconnecting the server from the ELAN or by
disabling the ELAN network cards from Network and Dialup Connections.
Configure Symposium Call Center Server clients with the computer name of the
Active Server for Symposium Call Center Server.
Component Computer
Name
Active Server Configured
with unique
computer
name
Standby Server Configured
with unique
computer
name
Installation and Maintenance Guide for Windows 2003
CLAN ELAN
Address Address
Configured Configured with
with unique ELAN IP
CLAN IP address. Only
address connected to
ELAN while in
active mode
Configured Configured with
with unique unique or same
CLAN IP ELAN IP
address address as the
Active Server
Notes
When switching to
standby mode,
reconfigure with
CLAN IP address
and computer name
of the Standby
Server
When switching to
active mode,
reconfigure with
CLAN IP address
and computer name
of the Active Server
1211