Method for dynamically regulating bandwidth of inner embedded elastic package loop circular network

Abstract

A method relates to adjusting the ring net bandwidth of embed resilient packet ring dynamically and nondestructively, through adding link volume control system into processing layer of synchronous digital network implements the dynamical and nondestructive adjustment of ring net bandwidth of RPR resilient packet ring embedded in SDH / SONET. When increasing ring net bandwidth, it firstly increases the bandwidth among the processing layer nodes of SDH / SONET, then starts the link volume control system in the SDH / SONET processing layer. The link volume control system nondestructively increases the actual bandwidth of processing layer ring net, finally increases the bandwidth of RPR processing layer ring net: When reducing the bandwidth of ring net, it firstly reduces the bandwidth of RPR processing ring net, then starts the ling volume control system in the SDH / SONET processing net. The link volume control system nondestructively reduces the actual bandwidth in SDH / SONET processing layer link, finally reduces the bandwidth among the processing layer nodes of SDH / SONET.

Description

technical field [0001] The present invention relates to an optical network bandwidth adjustment technology, in particular to a method for dynamically adjusting the bandwidth of a resilient packet ring (RPR) ring network embedded in a synchronous digital network, such as a synchronous digital transmission hierarchy (SDH) and a synchronous optical network (SONET). method. Background technique [0002] The embedded Resilient Packet Ring (RPR) of Synchronous Digital Network (SDH) / Synchronous Optical Network (SONET) can enhance the data transmission capability of optical transmission equipment, and can realize bandwidth space reuse and topology on SDH / SONET optical transmission equipment Automatic discovery, fair algorithm, etc. [0003] The embedded RPR of SDH / SONET is to increase the RPR processing layer on the SDH / SONET transport layer. figure 1 It is a schematic diagram of the logical structure of the embedded RPR ring network of SDH / SONET, such as figure 1 As shown, the S...

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Problems solved by technology

This will inevitably lead to the interruption of the service data transmitted by the optical transmission equipment, so that the SDH processing layer and the RPR processing layer cannot work normally.

[0005] In addition, for an RPR ring network with a bandwidth of N virtual containers, when a virtual container in a section of the RPR ring network fails, since the bandwidth on the ring network must All virtual containers will be unavailable. At this time, the entire RPR ring network will undergo protection switching, and the bandwidth will be halved, resulting in a greatly reduced utilization rate.

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