Multi-service transfer platform (MSTP) optical transport network, service transport method thereof and related equipment

An optical transport network and service technology, applied in the field of digital transmission, can solve problems such as poor service scheduling capability and MSTP channel resource waste, and achieve the effect of enhancing service scheduling capability and improving service transmission efficiency

Active Publication Date: 2011-07-27
CHINA MOBILE GROUP DESIGN INST
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The embodiment of the present invention provides a synchronous digital series-based multi-service transmission platform MSTP optical transport network and its service transmission method and backbone convergence point equipment to solve the problem of poor service scheduling capabilities between convergence rings in the existing MSTP optical transport network to improv

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  • Multi-service transfer platform (MSTP) optical transport network, service transport method thereof and related equipment
  • Multi-service transfer platform (MSTP) optical transport network, service transport method thereof and related equipment
  • Multi-service transfer platform (MSTP) optical transport network, service transport method thereof and related equipment

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Embodiment 1

[0035] This embodiment aims to provide an MSTP optical transport network and its service transmission method and related backbone convergence point equipment to solve the problem of poor service scheduling capabilities between convergence rings in the existing MSTP optical transport network, and to improve the efficiency of convergence rings. The efficiency of business transmission between them.

[0036] This embodiment firstly provides a new networking structure of the MSTP optical transport network, and mainly transforms the topology structure of the convergence layer. Each convergence ring in the existing convergence layer generally adopts a separate ring formation mode, and there is no connection between the convergence rings. Such as figure 1 As shown, each convergence ring includes two backbone convergence points and several convergence points, and the two backbone convergence points and several convergence points are connected in series through the MSTP channel to form...

specific Embodiment approach

[0054] In specific implementation, if a backup direct link is configured between the two backbone convergence points included in each convergence ring, another specific implementation method includes the following steps:

[0055] Step A, the shared backbone convergence point transmits the service particles to another backbone convergence point in the second convergence ring through the backup direct link between the two backbone convergence points in the second convergence ring; and

[0056] Step B: Another backbone convergence point transmits the service particle to the destination convergence point through the MSTP channel of the second convergence ring.

[0057] For the description of the service direction of service transmission between two tangent convergence rings in the above specific implementation, please refer to Figure 6 : ① Service particles are uploaded to aggregation point 1 (source aggregation point) and then transmitted to backbone aggregation point 1 through ...

Embodiment 2

[0070] This embodiment provides a service transmission method of an MSTP optical transport network, which is used to solve the problem of waste of MSTP channel resources in the existing MSTP optical transport network, and improve service transmission efficiency in a convergence ring. It should be noted that this embodiment does not limit the networking structure of the MSTP optical transport network, and the MSTP optical transport network may adopt the networking structure in the prior art, or may adopt the new networking structure provided in the first embodiment. The service transmission method of MSTP optical transport network, such as Figure 8 shown, including:

[0071] S801. When performing service transmission in the aggregation ring, the source aggregation point transmits the received service particles to the first backbone aggregation point, and the distance between the source aggregation point and the first backbone aggregation point is smaller than the distance betw...

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Abstract

The invention discloses a multi-service transfer platform (MSTP) optical transport network, a service transport method thereof and backbone convergence point equipment, which are used for solving the problem of relatively lower capacity of scheduling services among convergence rings in the conventional MSTP optical transport network and improving the efficiency of transporting the services among the convergence rings. A convergence layer of the MSTP optical transport network comprises a plurality of convergence rings, wherein each convergence ring comprises two backbone convergence points anda plurality of convergence points; the two backbone convergence points and the plurality of convergence points are connected in series to form a ring by an MSTP channel; and at least one backbone convergence point in each convergence ring is shared by at least two convergence rings. The invention also discloses the service transport method for the MSTP optical transport network, which is used forsolving the problem of wasting of MSTP channel resources in the conventional MSTP optical transport network and improving the service transport efficiency in the convergence rings.

Description

technical field [0001] The invention relates to the technical field of digital transmission, in particular to an MSTP (multi-service transmission platform based on synchronous digital series) optical transmission network, a service transmission method and related equipment. Background technique [0002] With the development of digital transmission technology, the optical transport network has successively experienced PDH (Plesiochronous Digital Hierarchy, quasi-synchronous digital series), SDH (Synchronous Digital Hierarchy, synchronous digital series), MSTP (Multi-Service Transfer Platform, SDH-based multi-service transmission platform) and other application stages. MSTP can connect multiple independent devices such as SDH multiplexer, DXC (Digital Cross Connector), WDM (Wavelength Division Multiplexing, Wavelength Division Multiplexing) terminal, network Layer 2 switch and IP (Internet Protocol, Internet Protocol) edge router. Integrated into a network device, that is, MS...

Claims

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Application Information

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IPC IPC(8): H04L12/42H04L12/46
Inventor 胡轶凡
Owner CHINA MOBILE GROUP DESIGN INST
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