Time slot distribution management method and apparatus thereof

Abstract

The invention relates to a time slot distribution management method and an apparatus thereof. The method comprises the following steps: receiving an externally transmitted time slot distribution request; determining whether an appointed TE link has an available time slot list in the time slot distribution request; if the appointed TE link does not have the available time slot list, generating the corresponding available time slot list; carrying out time slot distribution according to the time slot distribution request and the corresponding available time slot list. In the invention, when the TE link is generated or the time slot distribution request is arrived, the corresponding available time slot list is generated. During a subsequent time slot application and release process, an operation is only needed to be performed to the available time slot list. Working efficiency can be substantially increased. The time slot application uses a query list mode but not a polling mode, which can greatly reduce time slot fragments brought during a time slot distribution process and maximumly guarantee a bearing capability of a link to a large particle service. The list aims at one TE link but not a transmission interface. A bundled link time slot distribution problem can be effectively solved.

Description

technical field [0001] The present invention relates to the field of optical communication, in particular to a time slot allocation management method and device in ASON (Automatic Switched Optical Network, Automatically Switched Optical Network). Background technique [0002] The ASON network has the characteristics of intelligence and personalization. Its intelligence is mainly reflected in the ability to automatically discover network resources and configure links. Complete the establishment, update and release of the bandwidth connection, which can provide the required protection for the business and recover in time when the network fails. Its personalization is mainly reflected in the business-oriented bandwidth transaction characteristics, which can allocate bandwidth according to needs and provide differentiated services for customers. [0003] For each independent ASON network node in the network, its time slot allocation can be divided into two types: upstream time ...

AI Technical Summary

Problems solved by technology

This method needs to traverse the state of each time slot every time slot allocation, which is inefficient, and cannot comprehensively consider the resource situation of the entire link, and cannot maintain the link's carrying capacity for large-grained services to the greatest extent.

Especially when multiple data links are aggregated into one traffic engineering (TE, Traffic Engineering) link (bundled link), a TE link no longer only includes one port, and the time slots of different ports cannot be used as the same When the time slots included in the cascade are used, this equal-step search method is no longer applicable

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