This read-create integer (2-100) multiplies the Level 2 hello timer to compute the holding time the router advertises in its Level 2 hello PDUs on this circuit, telling Level 2 neighbors how long to wait before assuming it is gone. A network engineer would raise this value on backbone (Level 2) links that occasionally drop a hello packet due to congestion, so a single lost hello does not trigger an unnecessary adjacency reset. For instance, a csIsisCircL2HelloMultiplier of 5 combined with a 10-second L2 hello timer yields a 50-second Level 2 holding time on an inter-area backbone circuit.