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:
Jan. 13, 2015
Filed:
May. 12, 2010
BO Yuan, Shenzhen, CN;
Liang Fan, Shenzhen, CN;
Chengxu Zhu, Shenzhen, CN;
Jian Guo, Shenzhen, CN;
ZTE Corporation, Shenzhen, Guangdong Province, CN;
Abstract
A method and apparatus for backing up user information are disclosed. The method includes: establishing a plurality of selection switch protocol groups between a same port of a standby service node and ports of a plurality of main service nodes respectively; the standby service node regularly receiving user information of access users from the ports of the plurality of main service nodes, and storing the user information to a main control unit of the standby service node; keeping a detection relation between the same port of the standby service node and the ports of the plurality of main service nodes; the standby service node sending to an interface unit of the standby service node the user information of the access user of that port stored in the main control unit, and according to the selection switch protocol, switching the same port of the standby service node to be main.