Problem determination method suitable for use when a filter blocks SNMP access to network components
US7055172B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 8, 2002 |
| Grant date | May 30, 2006 |
| Priority date | — |
| Expiry date | Nov 11, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/20
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A network management system determines whether end-to-end network paths are working, using network probes. A network component is deemed suspicious if included in every failed path, and deemed working if included in at least one working path. From the set of suspicious network components and the set of working components, a set of failed network components is deduced. The sets may be refined using SNMP to test visible components. In one embodiment, the set of failed network components is deduced by eliminating, from the set of suspicious network components, every network component that is included in the set of working network components. This may be done by finding the intersection of two sets: the set of suspicious network components, and the complement of the set of working network components, where the complement is with respect to the set of all network components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.