This text field, also delivered as part of an SNMP notification, identifies which VPN (VRF) the TCP connection referenced in the notification belongs to, with an empty/null value meaning the connection is on the public (global) routing table rather than in any VPN. An administrator reads this to know whether a reported TCP-related event concerns a customer's VPN routing instance or the provider's own global routing table. For example, this field containing the value "CustomerVPN-East" would tell the administrator the TCP connection in question belongs to that specific customer's VRF, not the public network.