User's Manual

Table Of Contents
BelAirOS User Guide Performing a Software Upgrade
April 22, 2012 Confidential Page 247 of 362
Document Number BDTM00000-A02 Draft
Figure 17: Active and Standby Software Loads
Under normal operating conditions, the contents of the two software load
banks are identical. During a software upgrade, the new software load is copied
into the standby bank at the time of the upgrade.
A software upgrade consists of the following steps:
1 Ensure the current configuration is saved. Refer to “Saving your Changes”
on page 37.
2 Determine what software load is active (A or B). The new software load will
overwrite the standby bank.
3 Download the new software load. The new software load is downloaded to
the standby software load bank. If A is active, then the new software load is
downloaded to bank B. If B is active, then the new software load is
downloaded to bank A.
4 Verify the new software downloaded successfully.
5 Activate the new software load from the standby software load bank
(containing the new load) by rebooting the AP. The new load is promoted to
active and the formerly active software load bank becomes standby.
6 Verify the configuration and operation of the AP operating with the new
software load
7 Commit the load (copy the newly activated load to the standby software
load bank).