This is the remote peer's IP address as encoded in the SP-PE TLV of a remote fault status notification for a multi-segment pseudowire, identifying the far-end switching point of the specific segment that the fault report concerns. Combined with the local IP and PW ID fields in the same TLV, this fully identifies which exact segment within a multi-hop MS-PW chain is the source of a reported remote fault. An admin troubleshooting an end-to-end MS-PW outage would use this address to identify which intermediate provider's switching node to contact when the fault clearly didn't originate at either ultimate endpoint.