Switchback From Survival Mode - Nortel 1000E Installation And Configuration Manual

Page 464 of 488

Switchback from Survival Mode

Automatic Switchback from Survival Mode
553-3041-210 Standard 4.00
Configuring MG 1000T survivability and alternate primary controller
A MG 1000T Expansion can switchback to Normal Mode after
communication with the MG 1000T Core is restored. The following
scenarios can trigger an MG 1000T in Survival Mode to return to Normal
Mode:
• Automatic Switchback (AUTOSB) — enables an MG 1000T to
automatically switchback from Survival Mode to Normal Mode as soon
as the IP link with the primary controller is restored and the SWOTO
timer has expired. A restart is initiated on the MG 1000T Expansion. At
the end of the system start, the MG 1000T Expansion is ready to operate
in Normal Mode.
• Manual Switchback — enables a technician to force the system into
Normal Mode by issuing the SBFS command. This command returns the
system to Normal Mode after the SOTS command has been used.
When the Automatic Switchback option is configured, a Survivable
MG 1000T Expansion automatically switches from Survival Mode to Normal
Mode. It returns to Normal Mode as soon as the IP link with the primary
controller is restored and the SWOTO timer expires.
A MG 1000T Expansion requires a valid database to be survivable.
The AUTOSB command is available in LD 117:
CHG AUTOSB <cab#> <Switchback setting>
Where:
cab# = 1-4, Media Gateway
Switchback setting = (YES) NO
When the switchback parameter is set to YES, the MG 1000T Expansion
automatically switches from Survival Mode when the SWOTO timer expires.
If switchback is set to NO, the MG 1000T remains in Survival Mode until a
technician enters the SBFS command.
September 2007