This is the remote (next-hop) peer's IP address embedded in the SP-PE TLV that this switching node sends onward when propagating aggregated fault information along a multi-segment pseudowire chain, identifying the specific next segment's far endpoint the fault report targets. Together with the PW ID and local IP fields in the same outgoing TLV, this fully specifies which downstream segment boundary is being notified of the aggregated fault. This is precise diagnostic data an admin would use when manually tracing exactly how a fault condition is being relayed hop-by-hop through a complex MS-PW deployment.