Method and system for topology construction and path identification in a two-level routing domain operated according to a simple link state routing protocol
US7120120B2 · kind B2 · utility
43Cited by
21References
9Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 15, 2002 |
| Grant date | Oct 10, 2006 |
| Priority date | — |
| Expiry date | Oct 11, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/186
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and system for extracting and building end-to-end route information in a two-level, multi-area Internet protocol (IP) autonomous system (AS) operated according to a simple link state routing protocol such as the Integrated System to Integrated System (IS-IS) protocol is disclosed. The method and system enables a user, such as a network administrator, to explicitly identify a full set of paths (links and routers) that a given IP packet would potentially traverse from its entry point in the area of the AS where it originates until its exit point in its intended destination or exit area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.