GMPLS RSVP-TE VLAN LSP signaling

The point-to-point Layer 2 connectivity between two client routers across an external or third-party server-layer network can be set up by the client routers on an on-demand basis using GMPLS RSVP-TE signaling. This feature provides the client routers the flexibility to establish, maintain, and provision each individual Layer 2 connection, without any dependency on the server-layer administration. As a result, the burden on the operational expenses of the provider network, in terms of provisioning individual Layer 2 connections, is reduced. In traditional Layer 2 VPN technology that is based on LDP and BGP, the provider network handled the provisioning activity for each Layer 2 circuit established between two client routers.