HP 6125XLG R2306-HP 6125XLG Blade Switch IRF Configuration Guide - Page 18

• Before you bind an SFP+ port to an IRF port or remove it from the IRF port, you must shut down all the SFP+ ports in the same group. Downlink 10-GE Ethernet port restrictions When you use the downlink 10-GE Ethernet ports on the switch rear panel as IRF physical ports, follow these guidelines: • If you use one of the downlink 10-GE Ethernet ports for IRF connection, you must also use all the other downlink 10-GE Ethernet ports for IRF connection. However, you can bind them to different IRF ports. • Before you bind a downlink 10-GE Ethernet port to an IRF port or remove it from the IRF port, you must shut down all the other downlink 10-GE ports on the switch rear panel. Connecting IRF ports When you connect two neighboring IRF members, connect IRF-port 1 on one member to IRF-port 2 on the other. IRF link redundancy You can bind up to four physical ports to an IRF port for link redundancy. MAD and IRF domain restrictions • Assign each IRF fabric a unique IRF domain ID in a multi-IRF network. • An IRF fabric has only one IRF domain ID. You can change the IRF domain ID by using the following commands: irf domain, mad enable, mad arp enable, or mad nd enable. The IRF domain IDs configured by using these commands overwrite each other. • LACP MAD handles collisions in a different way than BFD MAD, ARP MAD, and ND MAD. To avoid conflicts, do not use LACP MAD together with any of those mechanisms. However, you can configure BFD MAD, ARP MAD, and ND MAD together for prompt IRF split detection. • If LACP MAD, ARP MAD, or ND MAD runs between two IRF fabrics, assign the two IRF fabrics different domain IDs for correct split detection. For BFD MAD, this task is optional. • To exclude a port from the shutdown action that is executed when an IRF fabric transits to the Recovery state, use the mad exclude interface command. To bring up a port after the IRF fabric transits to the Recovery state, you must use the mad restore command instead of the undo shutdown command to activate the entire IRF fabric. Other configuration guidelines • If a subordinate device uses the same next-startup configuration file name as the master device, the file might be overwritten depending on your configuration file management settings. To continue to use the configuration file after removing the switch from the IRF fabric, back up the file before setting up the IRF fabric. • If two IRF fabrics have the same bridge MAC address, they cannot merge unless you change the bridge MAC address of one IRF fabric. • Assign each member a unique IRF member ID to make sure that they can merge. You must reboot the members to validate the IRF member ID settings. • Assign the highest member priority to the device you want to use as the master. 14