Implementation method of signaling extension of establishing cross-layer channel by using electric relay in wson

Abstract

The invention discloses a method for implementing signaling expansion by using an electronic relay for establishing a cross-layer channel in a WSON (Wavelength Switched Optical Network). The method comprises the following steps of adding a corresponding mark and information for automatically establishing or deleting an optical layer channel in a Notify message; and when receiving a request of establishing or deleting an electronic layer channel, transmitting the Notify message between a source node of the electronic layer channel and a source node of the optical layer channel by an IP (Internet Protocol) so as to implement automatic establishment or deletion of the optical layer channel. According to the method disclosed by the invention, by adding the corresponding mark and information for automatically establishing or deleting the optical layer channel in the Notify message and transmitting the Notify message between the source node of the electronic layer channel and the source node of the optical layer channel by the IP to implement automatic establishment or deletion of the optical layer channel when receiving the request of establishing or deleting the electronic layer channel, service scheduling of the cross-layer channel is implemented.

Description

technical field [0001] The invention relates to the field of communication technologies such as data and optical transmission equipment, and in particular to a method for realizing signaling extension of establishing a cross-layer channel by using an electrical relay in WSON. Background technique [0002] WSON (Wavelength Switched Optical Network) is an Automatically Switched Optical Network (ASON, Automatically Switched Optical Network) based on WDM (Wavelength Division Multiplexing) transport network. By introducing the control plane into the wavelength network, the Generalized Multiprotocol Label Switching (GMPLS, Generalized Multiprotocol Label Switching) and other control plane technologies realize dynamic scheduling of wavelength routing, realize intelligent wavelength scheduling, and improve the flexibility of WDM network scheduling and the efficiency of network management. [0003] At present, the application of intelligent control plane technology based on GMPLS is ...

AI Technical Summary

Problems solved by technology

The existing mature control technology based on a single switching layer (VC4, ODUK, wavelength) is gradually unable to fully meet the multi-layer scheduling requirements in the current network. The main reason is that the growth of IP data services, the optical With the development of IP transmission technology, IP-oriented end-to-end service scheduling will pass through multiple switching layers or scheduling granules; with the development of network flattening and chip integration technology, communication network equipment has a powerful multi-service integration processing capability and a large With high integration, a single device can have multiple levels of business processing capabilities

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