This object holds the VC label used in the outbound direction for this pseudowire, which may be configured manually if the VC's owner is 'manual' or is assigned automatically otherwise; for MPLS PSNs it represents the 20-bit VC tag, while for L2TP it represents the 16-bit Session ID. Administrators reference or set this value when diagnosing label mismatches or manually provisioning static pseudowires. For example, on a manually configured MPLS pseudowire, an engineer would set this object to a specific label value that must match what the remote PE expects for the inbound direction.