Telecommunications Science ›› 2021, Vol. 37 ›› Issue (8): 122-127.doi: 10.11959/j.issn.1000-0801.2021203

• Topic: Cloud-Network Convergence • Previous Articles     Next Articles

PCEP application in cloud-network convergence and end to end traffic assurance scheme

Yue WANG, Aijun WANG, Honglei XU   

  1. Research Institute of China Telecom Co., Ltd., Beijing 102209, China
  • Revised:2021-08-19 Online:2021-08-20 Published:2021-08-01
  • Supported by:
    Key R&D Program of State Assets Administration Committee of the State Council of China(21HQBYYF0019-001);Professional Ability Level Program of China Telecom Research Institute(T-2021-10)

Abstract:

With the booming development of new technologies such as cloud computing, big data and the continuous upgrading of communication infrastructure, the major domestic ISPs have proposed the development strategy of building a centralized control and flexible cloud network infrastructure under the trend of intelligent-traction network transformation.As a path calculation protocol widely used in the existing SDN architecture, PCEP protocol was often used to solve the problem of cross-layer and cross-domain path computing under complex network environment.The application of PCEP protocol in cloud-network convergence scenario was discussed and an end-to-end traffic guarantee scheme was introduced based on PCEP protocol which could ensure the connection-oriented network communication and make end-to-end service guarantee in native IP environment.It helps to improve the operators' ability of real-time perception, agile response and intelligent analysis of the network and meets the operation and maintenance management requirements such as global scheduling of communication resources, comprehensive opening of capabilities and flexible architecture.

Key words: PCEP, VLAN traffic forwarding, routing prefix, service guarantee

CLC Number: 

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