Invention Grant
- Patent Title: Methods and apparatus for determining reverse path delay
- Patent Title (中): 用于确定反向路径延迟的方法和装置
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Application No.: US11291251Application Date: 2005-11-30
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Publication No.: US07643430B2Publication Date: 2010-01-05
- Inventor: Guglielmo M. Morandin
- Applicant: Guglielmo M. Morandin
- Applicant Address: US CA San Jose
- Assignee: Cisco Technology, Inc.
- Current Assignee: Cisco Technology, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Weaver Austin Villeneuve & Sampson LLP
- Main IPC: G01R31/08
- IPC: G01R31/08 ; H04J3/06
Abstract:
According to the present invention, methods and apparatus are provided for determining components of a round trip time (RTT). A source node sends data to a destination node. The destination node inserts a timestamp into an acknowledgment and sends the acknowledgment back to the source node. The source node determines the RTT from its own measurements and estimates reverse path delay by comparing timestamps to expected timestamps. Considerations for destination node timestamp speed differences are provided.
Public/Granted literature
- US20070121523A1 Methods and apparatus for determining reverse path delay Public/Granted day:2007-05-31
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