Multiple path routing mechanism for packet communications network
US4905233A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 23, 1987 |
| Grant date | Feb 27, 1990 |
| Priority date | — |
| Expiry date | Nov 23, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/24
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A mechanism for establishing at least one transmission route between a source node and a destination node in a multinode communications network comprises monitoring transmission characteristics of each of the transmission paths among the respective nodes of the network so as to derive a plurality of path metrics representative of the ability of the respective transmission paths of the network to transmit communication signals. Then, feasible transmission routes to be used for the transmission of communication signals from the source node to the destination node are selected as those routes which extend from the source node to the destination node and each of which is comprised of one or more transmission paths among the nodes of the network and the sum of path metrics of transmission paths from neighboring nodes to the destination node is less than the path metric of a transmission path the end nodes of which correspond to the source and destination nodes. Communication signals are then transmitted from the source node to the destination node over the selected feasible transmission routes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.