This read-write boolean object enables or disables the Link Flap Detect feature on a Nortel/Avaya device, which automatically forces ports out-of-service when they exceed a configured number of link state transitions (up/down cycles) within a time window. Excessive link flaps typically indicate physical media problems, faulty transceivers, or misconfigured duplex settings, and this feature prevents the port from thrashing the network. Operations teams enable this feature to automatically quarantine problematic ports and prevent network instability, while they investigate the underlying hardware or configuration issue.