This object holds the Group ID learned from the inbound Group ID field of the remote peer's Virtual Circuit FEC Element when a signaling protocol handles VC setup, reading as zero if not used or not yet known. Administrators reference it to confirm which remote group a pseudowire belongs to as reported by the far-end PE. For example, an engineer troubleshooting a pseudowire that isn't behaving as expected might check whether this value matches the group ID configuration on the remote PE.