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QoS function realizing system and method based on packet enhanced optical transport network (POTN/PE-OTN)

An optical transport network and system implementation technology, applied in transmission systems, digital transmission systems, data exchange networks, etc., can solve problems such as high cost and complex network processing mechanism, and achieve low cost, simple processing mechanism, and guaranteed QoS Effect

Inactive Publication Date: 2015-08-19
FENGHUO COMM SCI & TECH CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the encapsulation structure of existing POTN / PE-OTN equipment does not contain QoS information. To ensure the quality of service when the encapsulated business is forwarded and processed in the network, all devices in the network are required to identify and process it. Payload content, resulting in complex network processing mechanism and high cost

Method used

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  • QoS function realizing system and method based on packet enhanced optical transport network (POTN/PE-OTN)

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Embodiment Construction

[0018] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0019] The QoS function realization system based on the packet-enhanced optical transport network of the present invention includes POTN / PE-OTN equipment and PTN equipment, and the two network intercommunication; the PTN equipment is used to send MPLS-TP services, and the POTN / PE-OTN equipment is used for Encapsulate MPLS-TP services. The POTN / PE-OTN equipment is also used to extract the value of the EXP (Experiment, experiment) field in the MPLS-TP service, which is used to identify the priority of the service carried, that is, the priority value.

[0020] This embodiment adopts GFP packaging, and the packaging structure is as follows figure 1 As shown, the service data of the MPLS-TP service is stored in the client payload information field of the payload area (Payload area), and the remaining fields of the GFP frame are GFP frame overhead....

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Abstract

A QoS function realizing system and a QoS function realizing method based on a packet enhanced optical transport network (POTN / PE-OTN) relate to POTN / PE-OTN. The system comprises POTN / PE-OTN equipment and PTN equipment. The PTN equipment is used for transmitting MPLS-TP business. The POTN / PE-OTN equipment is used for packaging the MPLS-TP business, and a priority field is arranged in a packaging structure of the MPLS-TP business. The POTN / PE-OTN equipment is used for extracting a priority numerical value in the MPLS-TP business and mapping the priority numerical value to the priority field. The POTN / PE-OTN equipment is used for processing business in descending order according to the priority indicated by the priority field when the packaged MPLS-TP business is blocked. The POTN / PE-OTN equipment of the invention can be used for providing different QoS according to different levels of importance of the business. The network processing mechanism is simple and the cost is low.

Description

technical field [0001] The present invention relates to POTN / PE-OTN (Packet Enhanced Optical Transport Network, Packet Enhanced Optical Transport Network), specifically a system and method for realizing QoS function based on Packet Enhanced Optical Transport Network. Background technique [0002] With the wide application and development of PTN (Packet Transport Network, packet transport network), OTN (Optical Transport Network, optical transport network) equipment and the continuous growth of related application requirements, POTN / PE-OTN technology is gradually emerging, its Positioned at the aggregation and core layers, it is the fusion of packet transport and optical transport. It also has technical advantages such as PTN packet label forwarding, statistical multiplexing, and OTN large-capacity and long-distance transmission. [0003] The POTN / PE-OTN equipment performs GFP (Generic Framing Procedure) encapsulation on the packet services from the PTN equipment, maps and ag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/725H04L12/723H04L45/50
Inventor 阮颖邓科
Owner FENGHUO COMM SCI & TECH CO LTD
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