Patent ID: 8780924
Filing Date: 2014-07-15
Classification: H04L

Abstract:
1. A generalized multiprotocol label switching (GMPLS) non-enabled network gateway for routing between a GMPLS enabled network and a GMPLS non-enabled network, the GMPLS non-enabled network gateway comprising: a border gateway protocol (BGP) routing unit to exchange routing information between a first GMPLS enabled network and a third GMPLS enabled network using a BGP; and a resource reservation protocol signaling unit to search for a path to another network using the routing information and to perform inter-autonomous system (AS) signaling by including a control plane of the first GMPLS enabled network or the third GMPLS enabled network and a signaling interface applying an out-of-band method, wherein the resource reservation protocol signaling unit determines an out-interface toward the third GMPLS enabled network by searching for interface information of the GMPLS non-enabled network interconnected with the third GMPLS enabled network in an inter-AS routing database (DB) provided in the BGP routing unit, wherein the resource reservation protocol signaling unit transmits at least one selected from service quality information received from a resource reservation path message of the first GMPLS enabled network, policy information, out-interface information searched through the inter-AS routing DB, and an upstream label received from the first GMPLS enabled network, to a network management system (NMS) through a pseudo path message, wherein the NMS allocates a downstream label with respect to the first GMPLS enabled network, performs path computation for intra-AS routing in the GMPLS non-enabled network, and allocates an upstream label with respect to the third GMPLS enabled network.