Specifications

AMF Introduction and Configuration
New and Enhanced Features in AlliedWare Plus 5.4.4 Major and Minor Versions 151
Rolling-Reboot Firmware Upgrade
The rolling-reboot firmware upgrade feature enables nodes within an AMF network to be
rebooted and upgraded in a rolling sequence so that downtime and management
overheads are minimized. First, specify a set of nodes within the AMF network using the
atmf working-set command, then use the atmf reboot-rolling command. All nodes in
the specified working-set will be rebooted and upgraded one by one, starting with the
nodes furthest from the core domain, and ending with nodes closest to, or in, the core
domain.
Once the rebooted node has finished running its configuration and has brought its ports
up, it re-joins the AMF network and the next node in the working-set is rebooted and
upgraded.
To upgrade firmware, a download URL can be selected from any media location.
Supported media locations include:
■ flash:
■ card:
■ usb:
■ tftp:
■ scp:
■ http:
The latest compatible release for a node will be selected from one of these locations.
Several checks need to be performed to ensure the upgrade will succeed. This includes
checking that the current node release boots from Flash and that there is enough space in
Flash on this node. The new release name is updated using the boot system backup
command. The old release will become the backup release file.
Note that if the release file is to be copied from a remote location (e.g. via TFTP or HTTP),
the URL should specify the exact release filename without using wild card characters.
The node is rebooted and the new software version will be used. On bootup, the software
release is verified. Should an upgrade fail, the upgrading unit will fail back to its old
software version. At the completion of this command, a report is run showing the release
upgrade status of each node.
The force parameter enforces a node reboot, even though the node may not be suitable
for upgrading software. This command can take a significant amount of time to complete.
Note
The atmf rolling-reboot command can also be used to reboot a set of nodes
without upgrading the firmware.
Note
Rolling-reboot firmware upgrades can be performed on a working-set that
includes the controlling node, although in this instance the user will not be
presented with a summary report upon completion.