This read-only Unsigned32 value, in milliseconds (0-1000, default 0), is the hold-off time before client-shutdown or a replacement signal is applied at the egress direction of this 40 Gigabit Ethernet (40GbE) client port. A short delay here avoids triggering a client-side shutdown on a fault that clears itself almost immediately, while still reacting fast enough to protect downstream equipment. For example, setting this to 50 ms on client port 1 means a line fault lasting only 20 ms would not trigger client-shutdown, but one lasting 100 ms would.