A factory is choosing which MDS switch should be principal. One switch is set to priority 1 and the other is left at the default priority of 128. Which switch has the stronger bid?
Select an answer to reveal the explanation.
Short Explanation
Treat the number like a golf score, not a point total. You want the switch set to priority 1, because on MDS a lower number is the stronger principal bid and 128 is only the default. Activating a zoneset does not cast a vote.
Full Explanation
MDS uses fcdomain priority when it selects the principal switch, and the scale runs opposite to a scoreboard. The configurable range is 1 to 254, the default is 128, and 1 is the strongest bid. A switch set to 1 therefore outranks a peer left at 128. The higher number is the weaker bid, so leaving a switch at 128 does not make it principal against a peer set to 1. OSPF router IDs belong to the IP control plane. They are not an input to Fibre Channel principal selection. The time of a zoneset activation chooses nothing here. A zoneset decides which devices may talk in a VSAN. Caveat: if both switches are set to the same number, the lower switch WWN wins the tie. Also, the configured priority is applied when the domain restarts, so typing the number does not move the role by itself. Operational check: compare the two configured priorities, restart the domain in a maintenance window if you intend the role to move, and confirm the switch set to 1 is principal.