Method of performing tunnel signaling over IP tunneling path and apparatus using the method

摘要

A method and apparatus for performing tunneling signaling over an IP tunneling path connected to an end-to-end path on an IP network are provided, in which an end-to-end signaling flow is received from a sender or a receiver on the end-to-end path, a tunnel signaling flow is generated corresponding to the received end-to-end signaling flow, and the generated tunnel signaling flow is transmitted through the IP tunneling path, the end-to-end signaling flow is forwarded between an entry node and an exit node of the IP tunneling path, and the forwarded end-to-end signaling flow is transmitted to at least any one node on the end-to-end path, wherein the forwarding is simultaneously performed with the transmitting of the tunnel signaling flow, and the transmitting of the end-to-end signaling flow is suspended until the transmitting of the tunnel signaling flow is completed.

主权项

1. A method of processing a signaling flow of an Internet Protocol (IP) network that has an IP tunneling path connected to an end-to-end signaling flow, the method comprising:
generating a tunnel signaling flow corresponding to the end-to-end signaling flow of an end-to-end path; transmitting the generated tunnel signaling flow to at least one node on the IP tunneling path, the at least one node on the IP tunneling path performing a tunnel signaling in response to receiving the tunnel signaling flow; forwarding the end-to-end signaling flow to an exit node of the IP tunnel path; receiving an end-to-end signaling response corresponding to the end-to-end signaling flow from the exit node, the end-to-end signaling response generated based on a completion of tunnel signaling; searching for a crossover node (CRN) generated by a hand-off of a mobile node (MN); by using a query message transmitted from the MN or a reserve message transmitted from the MN; transmitting a tunnel signaling message including a release flag to at least one node on a local tunneling path, of the IP tunneling path, connecting the MN with the CRN prior to the hand-off; and releasing at least one of an end-to-end signaling state and a tunnel signaling state of the CRN by referring to the release flag, wherein a correspondence relationship between the tunnel signaling flow and the end-to-end signaling flow is stored, wherein a timer of the at least one node on the local tunneling path is varied after the releasing.