16
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.
Usage guidelines
This command is supported only in IRF mode. When you change the operating mode from IRF to
standalone, the bridge MAC persistence setting is lost, regardless of whether you have saved the
configuration.
If the
undo form of this command is used, bridge MAC address of the current master replaces the
original IRF bridge MAC as soon as the original address owner leaves.
If the IRF fabric uses a daisy-chain topology and has aggregate links with upstream or downstream
devices, do not execute the
undo irf mac-address persistent command. Use of this
command might result in transmission delay or packet loss after the address owner leaves or
reboots.
If the IRF fabric has multichassis aggregate links, do not use the
undo irf mac-address
persistent
command. Use of this command might cause traffic disruption.
By default, an IRF fabric uses the bridge MAC address of the master device as its bridge MAC
address.
On a switched LAN, the IRF bridge MAC address must be unique for correct traffic transmission.
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.
Examples
# Enable the IRF bridge MAC address to persist forever.
<Sysname> system-view
[Sysname] irf mac-address persistent always
irf member
Use irf member to assign a member ID to the device in standalone mode.
Use
undo irf member to restore the default.
Syntax
irf member member-id
undo irf member
Default
The member ID is 1.
Views
System view
Predefined user roles
network-admin
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