Just need some clarification on the stack reelection on Cisco 3850 Switch
let say I have 4 switches in a stack ring.
Switch 1(active) - Priority 15
Switch 2(standby) - Priority 14
Switch 3(member) - Priority 13
Switch 4 (member) - Priority 12
The switch priority are 15,14,13, and 12 respectively. Based on their priority, If switch 1 failed, switch 2 will become active, switch 3 will be the standby and switch 4 will stay as member. And if switch 1 went back online, switch 1 will not be preempted, and my question is after the reelection process. Will the stack election, elect switch 1 as member or standby?
From cisco document, it states that "The factors for electing or reelecting a new standby switch are same as those for the active switch election or reelection, and are applied to all participating switches except the active switch."
From my understanding on this, based on the above scenario, the old active switch after it went online or a new added switch in the stack will participate in the election along with the standby and member switches only in the stack ring.
Thank you in advanced.
Switch 1 will join as member because stack master n standby already exists.
Please note that priority comes into the picture during election. But if your stack already has a master/member then no further election is gonna happen when switch 1 will come back online.
However if switch 3 (current standby) goes down after switch 1 comes back online then switch 1 will be chosen over switch 4 (due to higher priority) for new standby election.