A passive method to estimate TCP round trip time from nonsender-side

TCP round trip time is an important subject of network measurement research. And it is widely utilized in congestion control and network tomography. Compared with active methods to measure round trip time, passive ones are superior for low cost and not injecting traffic into networks. However, all p...

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Bibliographic Details
Main Authors: Yujie Pei, Hongbo Wang, Shiduan Cheng
Format: Conference Proceeding
Language:English
Subjects:
congestion control
Costs
Delay
Extraterrestrial measurements
Internet
network measurement
Probes
Protocols
round trip time
State estimation
Telecommunication congestion control
Telecommunication traffic
Time measurement
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Summary:TCP round trip time is an important subject of network measurement research. And it is widely utilized in congestion control and network tomography. Compared with active methods to measure round trip time, passive ones are superior for low cost and not injecting traffic into networks. However, all present passive measurement methods have deficiencies. Some of them are not accurate enough, some others are only applied in just one phase of TCP connection, so none of them can well satisfy the demand of network management. This paper presents a passive method named cross to estimate TCP round trip time from nonsender-side. With cross correlation function, it precisely finds the correspondence between the sequence of ACK packets and that of data packets, and then gets round trip time of TCP connection. The experiment upon PlanetLab shows that this method is able to precisely estimate TCP round trip time in any phase of TCP connection no matter the network is idle or congested.
DOI:10.1109/ICCSIT.2009.5234608