H3C S6520X-HI Series - Irf Mac-Address Persistent

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Usage guidelines
CAUTION:
IRF bridge MAC address change will cause transient traffic disruption.
Before you replace an IRF fabric entirely, you can configure the new IRF fabric with the bridge MAC
address of the existing IRF fabric to minimize service interruption.
You must make sure the IRF bridge MAC address is unique on the switched LAN after the
replacement.
After you specify an IRF bridge MAC address, the IRF fabric always uses the specified address as
the IRF bridge MAC address.
If the IRF fabric splits after you configure the IRF bridge MAC address, both of the split IRF fabrics
use the configured bridge MAC address as the IRF bridge MAC address.
When IRF fabrics merge, IRF ignores the IRF bridge MAC address and checks the bridge MAC
address of each member device in the IRF fabrics. IRF merge fails if any two member devices have
the same bridge MAC address.
After IRF fabrics merge, the merged IRF fabric uses the bridge MAC address of the merging IRF
fabric that won the master election as the IRF bridge MAC address.
Examples
# Configure the IRF fabric to use c4ca-d9e0-8c3c as the IRF bridge MAC address.
<Sysname> system-view
[Sysname] irf mac-address c4ca-d9e0-8c3c
irf mac-address persistent
Use irf mac-address persistent to configure IRF bridge MAC persistence.
Use
undo irf mac-address persistent to disable IRF bridge MAC persistence.
Syntax
irf mac-address persistent { always | timer }
undo irf mac-address persistent
Default
The IRF bridge MAC address remains unchanged for 6 minutes after the address owner leaves.
Views
System view
Predefined user roles
network-admin
Parameters
always: Enables the IRF bridge MAC address to be permanent. The IRF bridge MAC address does
not change after the address owner leaves the fabric.
timer: Enables the IRF bridge MAC address to remain unchanged for 6 minutes after the address
owner leaves. If the owner rejoins the IRF fabric within the time limit, the IRF bridge MAC address
does not change. If the owner does not rejoin the IRF fabric within the time limit, the IRF fabric uses
the bridge MAC address of the current master as the bridge MAC address.