H3C Technologies H3C SecPath F5020 - Manual (Page 52)

43
Step Command Remarks
2. Configure IRF bridge
MAC persistence.
• Retain the bridge MAC address permanently
even if the address owner has left the fabric:
irf mac-address persistent always
• Retain the bridge MAC address for 6 minutes
after the address owner leaves the fabric:
irf mac-address persistent timer
• Change the bridge MAC address as soon as
the address owner leaves the fabric:
undo irf mac-address persistent
By default, the bridge MAC
address remains
unchanged for 6 minutes
after the address owner
leaves.
Enabling software auto-update for software image
synchronization
IMPORTANT:
To ensure a successful software auto-update in a multi-user environment, prevent anyone from rebooting
or swapping MPUs during the auto-update process. To inform administrators of the auto-update status,
configure the information center to output the status message to configuration terminals (see Network
Management and Monitoring Configuration Guide).
The software auto-update feature automatically synchronizes the current software images of the global
active MPU to MPUs that are attempting to join the IRF fabric.
To join an IRF fabric, an MPU must use the same software images as the global active MPU in the fabric.
When you add an MPU to the IRF fabric, software auto-update compares the startup software images of
the MPU with the current software images of the global active MPU. If the two sets of images are different,
the MPU performs the following tasks automatically:
1. Downloads the current software images of the global active MPU.
2. Sets the downloaded images as its main startup software images.
3. Reboots with the new software images to rejoin the IRF fabric.
You must manually update the new MPU with the software images running on the IRF fabric in the
following situations:
• Software auto-update is disabled.
• Software auto-update fails to update software. This situation might occur if the IRF fabric cannot
identify the software version used on the new MPU.
NOTE:
To synchronize software from the active MPU to the standby MPU in standalone mode, use the undo
version check ignore and version auto-update enable commands. For more information about these
commands, see Fundamentals Configuration Guide.
Configuration prerequisites
Make sure the MPU you are adding to the IRF fabric has sufficient storage space for the new software
images.