Specifications

Upgrading Multi-Switch Networks
In a multi-switch network (one with two or more Mobility Controllers), special care
must be taken to upgrade all switches in the proper sequence, based on the switch
type (master or local). Be sure to back up all switches being upgraded.
Make sure you have at least 10MB free flash.
Back up the WMS database and TFTP it off the switch.
Remove all unnecessary saved files from flash.
Run the tar crash command to make sure that there are no "process died"
files clogging up memory and TFTP the files off the switch.
Upgrading to ArubaOS 2.4.1.0
Upgrading an Existing Network
To upgrade an existing multi-switch system to ArubaOS 2.4.1.0:
Upgrade the master Mobility Controller first.
Upgrade all local Mobility Controllers last.
Note— For proper operation, all Mobility Controllers in the network must be
upgraded to use the same version of ArubaOS software.
Upgrading Redundant Switches
When configuring master/local switches in a redundant (VRRP) environment, the
redundant switches should be the same class of switch (5000, 2400, or 800) or
better, running the same revision of ArubaOS.
Aruba recommends upgrading in the following order:
Upgrade the Master switch to the new code.
Reboot the Master switch.
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