Forwarding of internetwork packets to a destination network via a selected one of a plurality of paths
US5845091A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 15, 1996 |
| Grant date | Dec 1, 1998 |
| Priority date | — |
| Expiry date | Feb 15, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/00
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for filtering an internetwork packet wherein multiple paths to a destination network are provided. The method comprises the step of providing a forwarding list that comprises a plurality of entries selected by a user. The forwarding list indicates a plurality of possible paths to a selected destination. One of the entries is selected by the user as a primary entry that indicates a default path. When an internetwork packet is destined for the destination network is received, the packet is forwarded to the destination network via the default path if the primary entry indicates a valid path. Otherwise, the packet is forwarded to the destination network via another path as indicated by another entry. According to an alternative embodiment, a different forwarding list is provided for each subnetwork of a source network, and the forwarding list is selected based on the source address of the packet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.