Preset protection ring distributed configuration protocol based on local diffusion type

Abstract

The invention relates to the communication field and the embodiment of the invention discloses a preset guard ring distributed configuration protocol on the basis of partial diffusion type. The method of the invention comprises the following steps of: realizing rapid distribution of the guard ring information through spreading the configuration message in a gap-bridging link of the configuration guard ring; the flooding operation among the adjacent nodes on the guard ring; the method for maintaining the local resource information; the expanding of an OSPE-TE protocol based on a GMPLS system; a simulation platform based on an OPNET ASON Simulator; partial spreading configuration style and rings interconnection configuration style. The process that the configuration style makes use of the flooding of the range of nodes in the ring to inform the P ring of configuration resource information is characterized by being rapid and reliable; and in an actual network, the protocol can be actually used through making a little revise to the processing mode of the device. The configuration method is particularly applicable to a high-speed, high-connectivity mesh optical network, can increase the resource configuration speed of modern optical-fiber network and reduce maintenance cost. The advantages of the invention are more obvious in a network with stronger dynamical property.

Description

technical field [0001] The invention relates to the communication field, in particular to a distributed configuration protocol of a preset protection circle in a lattice optical network. Background technique [0002] The concept of Preconfigured-Cycle (referred to as P-cycle) was first proposed by W.D.Grover in 1998. The basic goal of its design is to provide a protection speed close to that of a ring network with the efficiency of a similar grid. P ring protection is a protection method in grid network. It combines the advantages of ring network protection and mesh network protection and recovery. It realizes fast protection in grid network through the ring channel preset by idle resources, and allows The working channel selects the shortest direct route on the network resource map. The setting of the P circle occurs before any network failure, and the required real-time switching actions are completely pre-designed. Although the use of P-rings is similar to rings in term...

AI Technical Summary

Problems solved by technology

The distributed configuration of P circles can be effectively performed by using the DCPC protocol, but because the protocol is executed sequentially, the configuration time is long, and the efficiency is low in the grid network topology

And when the business intensity is high, the in-band configuration method cannot be used, and an additional control channel is required to ensure the basic performance indicators

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