Patent ID: 7978713

Claim:
A GMPLS+IP/MPLS node which is used in a network in which a GMPLS (Generalized Multi Protocol Label Switching) network and an IP (Internet Protocol) network are mixed, the GMPLS network comprising a node having a GMPLS function, the IP network comprising an IP/MPLS (Internet Protocol/Multi Protocol Label Switching) node, the GMPLS+IP/MPLS node constituting the GMPLS network, the GMPLS+IP/MPLS node processing a GMPLS protocol and an IP/MPLS protocol, the GMPLS+IP/MPLS node comprising: a device which establishes a GMPLS label path of a packet layer with another GMPLS+IP/MPLS node in the GMPLS network; a device which tunnel transfers a packet transferred from the IP/MPLS node with the other GMPLS+IP/MPLS node through the GMPLS label path; a device which advertises link state information of the GMPLS label path of the packet layer to the IP/MPLS node by a router LSA (Label Switching Advertisement) as a normal link in the IP/MPLS node; and a device which converts a link of PSC-LSP (Packet Switch Capability-Label Switch Path) used for IP/MPLS from an unnumbered system into a numbered system to advertise as the link of the numbered system.