面向城市光网的新型环路检测机制——上海“城市光网”技术创新和应用实践之八

doi:10.3969／j.issn.1000-0801.2012.10.021

Telecommunications Science ›› 2012, Vol. 28 ›› Issue (10): 128-132.doi: 10.3969／j.issn.1000-0801.2012.10.021

• Shanghai Telecom "city optical network construction • Previous Articles Next Articles

A New Loopback Detection Mechanism for Metro Optical Network

Ming Jiang¹,Jie Zheng²,Weijie Yang²

¹ Shanghai Research Insitute of China Telecom Co.， Ltd.， Shanghai 200122， China
² Shanghai Branch of China Telecom Co.， Ltd.， Shanghai 200120， China

Online:2012-10-15 Published:2017-07-05

Abstract

Abstract:

Loopback is a critical failure in PON， especially in mass deployment of PON network. This article describes thetypical phenomenon in real network and provides the typical loopback failure model. Then the principle of loopback detectionand the disadvantages of current solution are analyzed. Finally， based on the hands-on experience in network management， wepropose a new loopback detection mechanism and the related procedure which are widely used in metro optical network ofShanghai Telecom.

Key words: metro optical network, PON, loopback detection mechanism, OLT, ONU

Ming Jiang,Jie Zheng,Weijie Yang. A New Loopback Detection Mechanism for Metro Optical Network[J]. Telecommunications Science, 2012, 28(10): 128-132.

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A New Loopback Detection Mechanism for Metro Optical Network

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