This value, carried in an L2VPN OAM trap, reports the IP address of the peer PE (provider edge) router at the other end of the pseudowire's maintenance protocol session, or all zeroes if not applicable. An admin uses this to know which remote router to check or contact when investigating a pseudowire fault reported by the trap. For example, a trap showing hwL2vpnPeerAddr=10.1.1.2 tells the admin to check the pseudowire's status on the PE router at that address as well.