Counts the total number of protection switchovers this MC-LAG has performed. A high or rapidly climbing count here, especially combined with a recent LastTimeProtected timestamp, is the clearest single signal of a flapping or unstable primary path that an admin should escalate before it causes a real outage rather than just repeated brief failovers. If this counter increments five times in a single day, that pattern of repeated switchovers -- rather than any one individual event -- is itself the problem worth investigating.