Configuring the IRF bridge MAC address
![[CAUTION: ]](images/caution.png) | CAUTION: The bridge MAC address change causes transient traffic disruption. | |
Use this feature to configure the bridge MAC address of an IRF fabric. Layer 2 protocols, such as LACP, use the IRF bridge MAC address to identify an IRF fabric. On a switched LAN, the bridge MAC address must be unique.
When IRF fabrics merge, IRF ignores the configured 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 whose master has the higher priority as the IRF bridge MAC address.
If an IRF fabric splits after you configure the IRF bridge MAC address, both the split IRF fabrics use the configured bridge MAC address as the IRF bridge MAC address.
To ensure correct packet forwarding, do not configure the IRF bridge MAC address the same as the MAC addresses of the following interfaces:
Layer 3 Ethernet interfaces.
Layer 3 Ethernet subinterfaces.
Layer 3 aggregate interfaces.
Layer 3 aggregate subinterfaces.
For more information about the MAC addresses of these interfaces, see Ethernet interface configuration and Ethernet link aggregation configuration in Layer 2—LAN Switching Configuration Guide.
To configure the IRF bridge MAC address:
Step | Command | Remarks |
|---|---|---|
1. Enter system view. | system-view | N/A |
2. Configure the IRF bridge MAC address. | irf mac-address mac-address | By default, an IRF fabric uses the bridge MAC address of the master as the IRF bridge MAC address. |