Brocade Access Gateway Administrator's Guide v6.2.0 (53-1001189-01, April 2009)

Access Gateway Administrator’s Guide 7

53-1001189-01

Upgrade and downgrade considerations for switches in AG mode

Note the following upgrade and downgrade considerations when the Brocade policies are enabled.

Advance Device Security policy

If you upgrade from v5.2.1/v5.3.x to v6.2.0, the ADS policy is disabled. Downgrading to v6.0 or

earlier is permitted, but you must disable ADS. Downgrading to v6.1 is allowed and ADS is

supported.

Automatic Port Configuration policy

If you upgrade from Fabric OS v6.0.x or earlier to Fabric OS 6.2.0, by default, the APC policy is

disabled. To downgrade from v6.2.0 to v5.2.1 or 5.3.x you must disable APC.

Port Grouping policy

If you upgrade from v5.2.1 or v5.3.x to 6.2.0, then the PG policy is enabled with the default port

group pg0 containing all the N_Ports. If the PG policy is enabled, you can downgrade from Fabric

OS 6.2.0 to Fabric OS v6.0.0. To downgrade to versions earlier than v6.0.0, you must first disable

port grouping.