White Paper Abstract:
Virtual Private LAN Service (VPLS) is generating considerable interest with enterprises and service providers as it offers multipoint Ethernet LAN services, often referred to as transparent LAN service (TLS), over MPLS networks. In operation a VPLS offers the same connectivity experienced if a device were attached to an Ethernet switch. The IETF VPLS documents describe an architecture that links virtual switch instances (VSIs) using Multiprotocol Label Switching (MPLS) pseudowires to form an "emulated" Ethernet switch.