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Method and device for binding and mapping control of inter-domain links and intra-domain channels for cross-domain services

A technology of inter-domain links and control methods, which is applied in the field of binding and mapping control between inter-domain links and intra-domain channels for cross-domain services, and can solve problems such as business failure and interruption of new service paths

Inactive Publication Date: 2011-12-28
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conversely, if the subsequent establishment of cross-domain services does not comply with this restriction, when the route calculation result of the new service passes through other intra-domain channels in the domain where the large-grained switching device is located, the problem of failure to establish a new service path or interruption of existing services will occur
Although the ITU-T working group has started to formulate a general mapping procedure (GMP) based on multiple bandwidth granules, there is still no clear solution to this problem in the industry

Method used

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  • Method and device for binding and mapping control of inter-domain links and intra-domain channels for cross-domain services
  • Method and device for binding and mapping control of inter-domain links and intra-domain channels for cross-domain services
  • Method and device for binding and mapping control of inter-domain links and intra-domain channels for cross-domain services

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Embodiment Construction

[0045] The present invention will be further described below in conjunction with the accompanying drawings.

[0046] Such as figure 1 As shown, the method for controlling the binding and mapping of the cross-domain service inter-domain link and the intra-domain channel in the present invention includes the following steps:

[0047] Receive a cross-domain business request and determine the type of the business request;

[0048] If established for business:

[0049] Calculate and obtain the path of the pre-established cross-domain business;

[0050] Judging whether the inter-domain link in the path has a binding mapping relationship with the intra-domain channel in the path, if yes, find out the binding mapping relationship between the existing inter-domain link and the intra-domain channel; otherwise, according to the preset strategy Select the intra-domain channel corresponding to the inter-domain link, and establish the binding mapping relationship between the inter-domain...

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Abstract

The invention discloses a method and device for binding and mapping control of inter-domain links and intra-domain channels for cross-domain services, and is mainly designed for the defects existing in the linkage mapping relationship established between existing inter-domain links and intra-domain channels. The control method of the present invention includes: when establishing the first cross-domain service passing through the inter-domain link, selecting a large-grained intra-domain channel according to a preset strategy, and automatically binding its mapping relationship with the inter-domain link. When subsequently establishing cross-domain services passing through the inter-domain link, the routing calculation policy of the control plane is associated with the mapping relationship, and automatically converges the cross-domain services into the intra-domain channels specified in the mapping relationship. The binding mapping relationship lasts until all service connections carried on the inter-domain link are released after being torn down. The method proposed by the invention can correctly control the establishment and aggregation of cross-domain services without adding hardware network equipment.

Description

technical field [0001] The present invention relates to the field of communication networks, in particular to a binding mapping control method and device for cross-domain service inter-domain links and intra-domain channels under the condition of multi-layer multi-domain heterogeneous optical network interconnection. Background technique [0002] In recent years, with the diversification of business requirements and the continuous innovation of optical network technology, multiple transmission methods such as Pasi-Synchronous Digital Hierarchy (PDH), Synchronous Digital Hierarchy (SDH), Wavelength Division Multiplexing (WDM) and Optical Transport Network (OTN) The optical network based on technology has a long-term coexistence development situation. In order to better provide service transmission, the interconnection and intercommunication of various heterogeneous optical networks has become a major development trend of optical networks. Due to the fact that many optical ne...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L47/41
Inventor 郑小平张汉一鲁睿王磊李青山
Owner TSINGHUA UNIV
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