 It may then incorrectly direct traffic for that MAC address to the wrong port, effectively causing this traffic to be lost, and even causing other switches to incorrectly associate the sender's address with a wrong port as well.In a redundant switched network it is possible for an end device to receive the same frame multiple times.It is not true that within a switching loop packets will circulate the network until their time to live (TTL) value expires, as no TTL concept exists at Layer 2.