Configuration restrictions and guidelines
When you configure the IRF bridge MAC address, follow these restrictions and guidelines:
The IRF bridge MAC persistence feature does not take effect if you specify the IRF bridge MAC address by using the irf mac-address mac-address command.
If ARP MAD or ND MAD is used with the spanning tree feature, you must use the undo irf mac-address persistent command to disable IRF bridge MAC persistence. In addition, do not use the irf mac-address mac-address command to specify an IRF bridge MAC address.
If the IRF fabric has cross-member aggregate links, do not use the undo irf mac-address persistent command to avoid unnecessary traffic disruption.
If the IRF fabric uses a daisy-chain topology and has aggregate links with upstream or downstream devices, do not use the undo irf mac-address persistent command. Any violation results in transmission delay or packet loss after the address owner leaves or reboots.