Preparing For The Upgrade - Nortel 1000E Upgrade

Page 44 of 228 Review Prerequisites Checklist

Preparing for the upgrade

NN43041-465 Standard 01.04
• Review all product bulletins and Nortel Alerts that impact the site.
• Prepare a contingency plan for backing out of the upgrade.
DANGER OF ELECTRIC SHOCK
In a DC-powered system, power to the column can
remain on during the following procedures. In an AC-
powered system, however, power to the entire column
must be shut down throughout the procedures.
Preparing for an upgrade involves the following tasks:
• Identify and become familiar with all procedures.
• Verify that all installed applications meet the minimum software
requirements for the target platform.
• Determine and note current patch or Dep lists installed at the source
platform.
• Determine required patch or Dep lists at the target platform for all
system-patchable components (Call Servers, Voice Gateway Media
Cards, Media Gateway Controllers, Signaling Servers and so on).
• Determine the required patches or DEP lists installed on all applications.
• Determine and communicate the required maintenance window,
contingency plan and the impact to the customer to complete the
procedure.
• Perform an inventory on required software and hardware.
July 2007