H3C SR6600 Configuration Manual

Also see for SR6600 SPE-FWM: Configuration guide Configuration guide Command reference Command reference Command reference

Contents

H3C SR6600 Configuration Manual Manual pdf 14 page image

6IRF mergeIRF merge occurs when two split IRF fabrics reunite or when two independent IRF fabrics are united, asshown in Figure 5.Figure 5 IRF mergeMember priorityMember priority determines the possibility of a member device to be elected the master. A member withhigher priority is more likely to be elected the master.Master electionMaster election occurs each time the IRF fabric topology changes in the following situations:• The IRF fabric is established.• The master device fails or is removed.• The IRF fabric splits.• Independent IRF fabrics merge.NOTE:Master election does not occur when two split IRF fabrics merge.Master election selects a master in descending order:1. Current master, even if a new member has higher priority.When an IRF fabric is being formed, all members consider themselves as the master. This rule isskipped.2. Member with higher priority.3. Member with the longest system uptime.Two members are considered to start up at the same time if the difference between their startuptimes is equal to or less than 10 minutes. For these members, the next tiebreaker applies.4. Member with the lowest CPU MAC address.For the setup of a new IRF fabric, the subordinate devices must reboot to complete the setup after themaster election.For an IRF merge, devices must reboot if they are in the IRF fabric that fails the master election. The rebootcan be performed automatically or manually.