Before you begin
Before you upgrade an existing MGC that is running the CS 1000 software, enable the Enable legacy loadware upgrades attribute on the System Manager. The Enable legacy loadware upgrades attribute temporarily enables a program on the Avaya Breeze® platform node that accepts MGC registrations using the sunPRC protocol. The sunPRC protocol is the old CS 1000 call server protocol used to register and upgrade an MGC.
If you want to replace an existing MGC or add an additional MGC from the factory, enable the Enable legacy loadware upgrades attribute on System Manager. MGCs that are shipped from the factory are programmed using the CS 1000 version of the MGC software. These MGCs require an upgrade to the Device Adapter software using the Enable legacy loadware upgrades attribute.