Apparatus for estimating delay and jitter between network routers
US7111073B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 30, 2000 |
| Grant date | Sep 19, 2006 |
| Priority date | — |
| Expiry date | Jul 5, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/121
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A delay measurement technique according to an embodiment according to the present invention is based on the precept, ascertained by the inventors, that a link between network nodes will often contribute to the delay encountered between several different pairs of network nodes. Such a technique identifies the path between each pair of nodes by a list of links that form the path. Paths that are orthogonal are treated as being necessary for describing the delays encountered between nodes, and, once the requisite set of orthogonal paths has been derived, all other paths can be described in terms of one or more of these orthogonal paths. Such a technique also lends itself to matrix representation of the paths, and the use of matrix manipulation techniques in deriving delay and jitter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.