Nortel Meridian 1 Succession 1000M Installation And Configuration Manual page 327

5 Configure the main cabinet or chassis ELAN IP address, survivable IP
expansion cabinet or chassis ELAN IP address, and TLAN voice port.
Enter the Small System IP ELAN address of the main cabinet or chassis.
Define the survivable IP expansion cabinet or chassis IP address in OTM.
There is an extra field in OTM to configure the survivable IP expansion
cabinet or chassis IP address and TLAN port. Use the same secondary IP
address as the IP expansion cabinet or chassis ELAN address. If the IP
expansion cabinet or chassis is non-survivable, leave the default value at
"0.0.0.0".
Note: The ELAN address of the survivable IP expansion cabinet or
chassis entered must be on the same subnet as the main cabinet or
chassis. If the IP expansion cabinet or chassis is on a different subnet, use
the VLAN concept to keep both ELAN addresses on the same subnet.
6 Configure security for SNMP access.
7 Configure file server access.
8 Configure QoS.
9 Configure SNTP.
IP Line card configuration
Small System Installation and Configuration
Page 327 of 562