Auto Upgrade

• Alternately, working-sets (e.g. “edge switches”) allow the choice of which nodes to upgrade
• The chosen nodes receive new firmware, and are then rebooted
• Rolling reboot allows the nodes to be rebooted one at a time to maximize network uptime
• Rolling reboot can even be scheduled overnight to minimize disruption
• Auto-upgrade simplifies a normally time consuming task

• By means of wildcards the latest release can automatically selected from external media (i.e. ‘atmf distribute firmware card:*.rel’ will sensibly work out the latest release file present on the external media for each switch model)
• If a specific release is specified, rolling SW update can also be used for a rolling downgrade
• There is also a mechanism (atmf distribute firmware) to roll-out firmware versions without the reboot
• The reboot-rolling command can also be used just for reboot (without firmware up/downgrade)
• The reboot-rolling & distribute firmware commands can use a URL to specify the location of the firmware. Where a release file is located on a remote device (e.g. TFTP, HTTP, etc.), then the URL should specify the exact release filename without using wild card characters.