Method for multi-ring interconnection transmission of resilient packet ring network

Abstract

The invention refers to a kind of mutual-connection transmission method of a kind of elastic grouping ring network, the compatibility and extensibility defines the span-ring data frame and span-ring control frame and the dual-media accessing control layer structure of the RPR-X joint, the two media accessing layer communicate with the exchanging ports between them, and are connected to adjoined elastic grouping ring sub-network, the media access control address region logic is divided into network address region and the joint address region, which two are used to differentiate the different sub network and the different joint in the same sub network, the media accessing control address made up of the network address and the joint address can determines any joint in the elastic grouping ring network multi-ring mutual-connection network uniquely, the RPR-X joint media accessing control layer regulating algorithm similar to the loose displaying route sustains the RPR-X joint to complete the data transmission in the elastic grouping ring sub network, at the same time, it sustains the data transmission between the sub networks, it realizes the frame grouping data distributed span-ring transmission process from the source joint to the target joint.

Description

Technical field: [0001] The invention relates to a multi-ring interconnection transmission method of an elastic packet ring network, which is used for interconnecting multiple elastic packet ring networks facing metropolitan area transmission to form an elastic packet ring multi-ring transmission network, belonging to the field of communication and information system network transmission . Background technique: [0002] A resilient packet ring (Relisient Packet Ring, RPR) is a new type of metropolitan area network technology, which can optimize packet data service transmission on the current metropolitan area ring topology optical network. Resilient packet ring network technology combines the economy, flexibility, and scalability of Gigabit Ethernet (GE), and at the same time absorbs the synchronous digital hierarchy (Synchronous Digital Hierarchy, SDH) or synchronous optical network (Synchronous Optical Network) Network, SONET) ring network 50ms fast protection advantages....

AI Technical Summary

Problems solved by technology

[0004] The elastic packet ring network technology is mainly for pure ring network topology transmission in the metropolitan area. Although the elastic packet ring network technology adopts many new mechanisms (such as space reuse, fair dynamic bandwidth management, etc.) to improve the utilization efficiency of ring network resources, However, the pure ring structure will cause a waste of bandwidth to a certain extent. For example, there are 20 nodes in a typical metropolitan area flexible packet ring network, and the ring network bandwidth is 10G capacity, so the average capacity allocated to each node is only 10G / 20 =0.5G, resource utilization efficiency is not high

Since the elastic packet ring network technology adopts a pure ring structure, it is more applied to the access layer network of the metropolitan area when it is oriented to the metropolitan area, and the scope of application is limited.

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