Apparatus for and method of measuring communication performance
US6757255B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 27, 1999 |
| Grant date | Jun 29, 2004 |
| Priority date | — |
| Expiry date | Jul 27, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/16
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A TCP communications performance measuring device 2 obtains an effective bandwidth (a transfer speed) representing performance in TCP communications, wherein performance indexes or both of a round trip time and a maximum segment size which are obtained based on TCP communications variable-length packets transmitted and received pursuant to a TCP (Transmission Control Protocol) defined as protocol of a transport layer of the OSI Reference model, and any one of an average congestion window size, a packet discard rate and a packet discard event rate. The measuring device 2 therefore includes a packet monitoring unit, a performance index detecting unit 22, a session management unit 23, a session management table 24 and a performance calculating unit 25. The measuring device 2 is capable of measuring the performance in the TCP communications on a communications route of a network without specially transmitting the multiplicity of measurement-oriented packets to the network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.