Use disable nr-registration to deny gateways and IP-phones within a specified IP Network Region from registering on the primary server or survivable processor. This causes the gateways and IP phones to register instead with an alternate server or Survivable Remote Server. This is useful when network outages cause gateways and IP phones to disconnect and reregister with the primary server in an interval that is too short for the endpoints to fail over to a Survivable Remote Server.

Use disable nr-registration on a primary server and a Survivable Core Server. The disabled network region registration state on the primary server is not file-synced to the Survivable Remote Server or associated Survivable Core Server.

A gateway must be assigned to the specified network region.

If you have set the value of the Force Phones and Gateways to Active LSPs? field in the system-parameters ip-options screen as y and then run the disable nr-registration command on one network region, Communication Manager applies this command to all the network regions associated with the Survivable Remote Server. For example, a single Survivable Remote Server is the backup server for multiple network regions—network region 1 and network region 2. A system administrator runs the disable nr-registration 1 command. The Communication Manager server disables region 2. A gateway in network region 1 is unregistered from the Communication Manager server and registers to the Survivable Remote Server. The Survivable Remote Server reports to the main Communication Manager server that the Survivable Remote Server is active. The Communication Manager server then automatically disables network region 2.

The disable nr-registration command causes a disable network region warning alarm to appear in the alarm log.