Brocade Network OS NETCONF Operations Guide v4.1.1 - Manual (Page 86)

54 Network OS NETCONF Operations Guide
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Preparing for a firmware download
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• Use the custom RPC to query the status of a download operation.
• Use the action to commit a firmware upgrade.
• Use the action to restore a previous firmware version.
Firmware download parameters, custom RPCs, and actions are defined in the brocade-firmware
YANG module. For details, refer to the Network OS YANG Reference Manual.
Preparing for a firmware download
To prepare for a firmware upgrade, perform the tasks listed in this section. In the unlikely event of a
failure or timeout, you will be able to provide your switch support provider the information required
to troubleshoot the firmware download.
1. Verify the current firmware version. Refer to “Obtaining the switch firmware version” on
page 54 for details.
2. Decide on a migration path. Check the connected devices to ensure firmware compatibility and
that any older versions are supported. Refer to the Network OS Compatibility section of the
Brocade Network OS Release Notes for the recommended firmware version.
3. Back up your switch configuration prior to the firmware download. Refer to “Managing the
configuration” on page 19 for details.
4. Optional: For additional support, connect the switch to a computer with a serial console cable.
Ensure that all serial consoles and any open network connection sessions, such as Telnet, are
logged and included with any trouble reports.
5. Perform the copy support operation to collect all current core files before executing the
firmware download. This information helps to troubleshoot the firmware download process in
the event of a problem.
6. Optional: Clear RASlog messages to erase all existing messages in addition to internal
messages.
Obtaining the switch firmware version
Use the custom RPC to obtain the following information:
• Network Operating System version—The firmware version number
• Build time—The build date and time of the firmware
• Firmware name—The label of the firmware image
• Control Processor—CP model and memory
To retrieve switch firmware information, issue the custom RPC from the
urn:brocade.com:mgmt:brocade-firmware-ext namespace, and specify the routing bridge ID of the
switch you want to query in the input parameter.
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