The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 13, 2014
Filed:
Nov. 09, 2009
Weiping Sun, Shenzhen, CN;
Jianxin LU, Shenzhen, CN;
Yunpeng Xie, Shenzhen, CN;
ZTE Corporation, Shenzhen, CN;
Abstract
The present invention provides a method and apparatus for implementing trunk optical fiber protection in EPON. According to the technical scheme of the present invention, activating an optical module at a master PON port, deactivating an optical module at a standby PON port, configuring a service for the master PON port, and synchronizing static data and dynamic data to the standby PON port; synchronizing and adjusting a value of an MPCP counter at the standby PON port according to a value of an MPCP counter at the master PON port; and carrying out fault detection, transmitting an operating state to the standby PON port when the fault occurs, and performing a master-standby switch of the PON ports. In accordance to the present invention, by means of adjusting the MPCP counter at the standby PON port and further setting a dedicated communication channel, the fast communication between the master and standby PON ports is realized, so that the ONU does not to re-register when performing the master-standby switch for implementing the trunk optical fiber protection process in EPON system, as a consequence, the service restoration time for protection switch is remarkably shortened, the system reliability is enhanced, and the performance of the protection switch is improved.