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:
Aug. 30, 2011
Filed:
Jan. 05, 2006
Jun Lj Liu, Beijing, CN;
Wei BJ LU, Beijing, CN;
Ben BO Yang, Beijing, CN;
Chun Ying, Beijing, CN;
Qing BO Wang, Beijing, CN;
Jun LJ Liu, Beijing, CN;
Wei BJ Lu, Beijing, CN;
Ben Bo Yang, Beijing, CN;
Chun Ying, Beijing, CN;
Qing Bo Wang, Beijing, CN;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method for discovering topology in an SIP network is disclosed. According to the method, the SIP network is divided into domains governed by corresponding SIP proxies. A management system creates a topology agent for each SIP-domain and registers it with the governor proxy of each SIP-domain. Each topology agent generates topology-exploring messages to other agent and accumulates topology-exploring messages from other agents, gather routing information of the SIP network based on the collected topology-exploring messages to deduce topology of the SIP network.