Patent ID: 9130868
Filing Date: 2015-09-08
Classification: H04L

Abstract:
1. An inter-layer path provisioning system in a multilayer network, the inter-layer path provisioning system comprising: an upper layer path setting unit to set an upper layer path to be interlocked with an upper layer path computation unit, in response to a path setting request of an operator; a lower layer path setting unit to set a lower layer path to be interlocked with a lower layer path computation unit, separately from the setting of the upper layer path; and a cross-layer management unit to perform a connection between the set upper layer path and the set lower layer path, wherein the upper layer path is associated with a plurality of packet node paths included in a packet layer, and the lower layer path is associated with a plurality of optical node paths included in an optical layer, wherein the cross-layer management unit analyzes a relationship of packet nodes included in the packet layer with optical nodes included in the optical layer, extracts connectable packet node link information from the packet layer, designates, as a first type, one of the optical nodes and a link of which a path has been already set, from among the packet nodes based on the packet node link information, and designates, as a second type, the one of the optical nodes and a link of which a path has not been set, from among the packet nodes.