Data service protection reverse triggering process and apparatus

A technology for data service and protection switching, applied in data switching networks, digital transmission systems, electrical components, etc., can solve the problem of not triggering data service protection switching, and achieve the effect of flexible system operation

Inactive Publication Date: 2006-12-20
蔡兵
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The technical problem solved by the present invention is to provide a method and device for triggering data service protection switching, so as to avoid the situation in the prior art that the data service protection switching cannot be triggered when the bandwidth drops to a certain value due to service bandwidth adjustment

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  • Data service protection reverse triggering process and apparatus
  • Data service protection reverse triggering process and apparatus
  • Data service protection reverse triggering process and apparatus

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Embodiment Construction

[0050] Usually, the transmission of data services in an optical transport network is based on channel or virtual channel functions, and the service bandwidth is configurable. The virtual channel members mentioned in the present invention include but not limited to VC12 / VC3 / VC4 of SDH, VT1.5 / STS-1 / STS-3c of Sonet, ODUI / ODU2 / ODU3 of OTN, etc. In the case of transmitting data services based on the virtual channel function, the actual available bandwidth of the service can be dynamically adjusted through certain functions such as Link Capacity Adjustment Scheme (LCAS, Link Capacity Adjestment Scheme). LCAS is a link capacity adjustment protection technology based on the virtual channel function. It can protect services by adjusting the actual binding members when some members in the virtual channel fail. However, when a fault occurs, the working members of the link virtual channel will be reduced, and the link bandwidth will be reduced. When all members in the link virtual channel...

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Abstract

The invention relates to a data service protective switch trigger method, used in optical transmission network, wherein said data service is multiplexed into the virtual channel of said optical transmission network; the real bandwidth of said virtual channel can be adjusted. The method comprises: A, presetting the trigger bandwidth of data service protective switch; B, detecting if the real bandwidth is lower said trigger bandwidth, if it is lower, triggering the data service protective switch, or else, go on detecting. The invention also discloses a relative data service protective switch trigger device.

Description

technical field [0001] The invention relates to a data service processing technology, in particular to a data service protection switching trigger method and device in an optical transmission network (such as SDH, Sonet, OTN, etc.). Background technique [0002] In recent years, broadband data services have developed rapidly. Among all data services, the development speed of Ethernet services is the fastest. Due to its advantages such as ease of use, low price, and good scalability, Ethernet technology has evolved from a mainstream LAN Technology has evolved to the main data service access technology. Simply put, the Ethernet service is to provide data services through Ethernet interfaces (such as 10Mbps, 100Mbps, 1Gbps, 10Gbps interfaces) (bps, bits per second). At present, the access, switching, and transmission of data services are not limited to traditional switching access equipment and data communication equipment, and some data service access functions have also been ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04L29/06H04J3/08
Inventor 金志国
Owner 蔡兵
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