Patent · US Active

Method and apparatus for analyzing a media path in a packet switched network

US7729267B2 · kind B2 · utility

11Cited by

104References

18Claims

0Family size

Assignee

Cisco Technology, Inc. · US

Inventors

David R. Oran · Acton, US
Daniel G. Wing · San Jose, US

Key dates

Filing date	Nov 26, 2003
Grant date	Jun 1, 2010
Priority date	—
Expiry date	Dec 31, 2027

Classification

Technology area (CPC H)Electricity
CPC primaryH04L65/70
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

No-op media payload packets are used to analyze a media path in a packet switched network. In one embodiment, the no-op packets are Real Time Protocol (RTP) payload packets that contain no media content. A Real Time Control Protocol (RTCP) report is generated for the received RTP no-op packets. A marker bit is set in one of the no-op packets that triggers the no-op packet receiver to send back the RTCP report. The media steam is transmitted when the statistics in the RTCP report indicate a viable media path.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.