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1. (WO2017031858) METHOD AND APPARATUS FOR DETECTING TIME DELAY STATE INFORMATION, AND NETWORK ARCHITECTURE

Pub. No.:    WO/2017/031858    International Application No.:    PCT/CN2015/096231
Publication Date: Fri Mar 03 00:59:59 CET 2017 International Filing Date: Fri Dec 04 00:59:59 CET 2015
IPC: H04L 12/26
Applicants: BEIJING BAIDU NETCOM SCIENCE AND TECHNOLOGY CO., LTD.
北京百度网讯科技有限公司
Inventors: LIU, Chen
刘琛
SONG, Lei
宋磊
TIAN, Tianxiao
田天笑
YAO, Chengcai
姚成才
Title: METHOD AND APPARATUS FOR DETECTING TIME DELAY STATE INFORMATION, AND NETWORK ARCHITECTURE
Abstract:
Disclosed is a method for detecting time delay state information. The method comprises: storing a data table on a source node in advance, wherein the data table contains a correlation between planned detection flow information and link information; generating a flow table on a controller according to the data table, wherein the flow table contains matched detection flow information and action information for processing the detection flow, and the action information is forwarded from a certain interface of a network device; according to the action information for processing the detection flow in the flow table, instructing an intermediate node to forward the detection flow carrying a first time stamp and sent by the source node to a destination node, and determining a second time stamp; and according to the first time stamp and the second time stamp, determining time delay state information about the link information corresponding to the detection flow. By means of the embodiments of the present application, time delay state information between any two nodes in a network architecture can be detected, and a link segment in a time delay state is detected rapidly and accurately, thereby improving the detection efficiency of the time delay state information.