Maintaining database integrity throughout a communication network
US5621721A · kind A · utility
75Cited by
6References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 12, 1995 |
| Grant date | Apr 15, 1997 |
| Priority date | — |
| Expiry date | Jan 12, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/58
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A communication network with a database consistency mechanism is disclosed, wherein a sequence number and a set of routing information for each of a set of virtual circuits of the communication network are maintained in a main database and an auxiliary database in each of a set of communication nodes in the communication network. The sequence numbers in the main database or the auxiliary database in each of the communication nodes are verified if one of the communication nodes switches between the main database and the auxiliary database, and then virtual circuits are rerouted when necessary.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.