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:
Nov. 18, 2008
Filed:
Dec. 15, 2003
David A. Grabelsky, Skokie, IL (US);
Ikhlaq S. Sidhu, Vernon Hills, IL (US);
Guido M. Schuster, Des Plaines, IL (US);
Jacek A. Grabiec, Chicago, IL (US);
David A. Grabelsky, Skokie, IL (US);
Ikhlaq S. Sidhu, Vernon Hills, IL (US);
Guido M. Schuster, Des Plaines, IL (US);
Jacek A. Grabiec, Chicago, IL (US);
3Com Corporation, Marlborough, MA (US);
Abstract
Gateway routers for real-time networks have the ability to collect delay, loss, and jitter statistics on a per-connection basis. It is possible to use this information not only to monitor the quality of individual voice calls and other real-time connections, but also to evaluate the overall performance of the underlying network. This paper describes a method for monitoring and managing the performance of a real-time data network that supports voice, video and other real-time services. In the described embodiments, the RTCP mechanisms of RTP for sender and receiver reporting be used to relay performance information to one or more network monitoring sites for analysis and interpretation. In addition, gateway routers are organized and managed within a hierarchy that allows the monitoring function to localize it view of network conditions within the hierarchy; and the monitoring of network performance can occur on various time scales.