Label-based forwarding with enhanced scalability
US10826822B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 1, 2015 |
| Grant date | Nov 3, 2020 |
| Priority date | — |
| Expiry date | Dec 25, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/24
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for communication includes configuring a router to forward data packets in a network in accordance with MPLS labels appended to the packets. A group of two or more of the interfaces is defined as a multi-path routing group in a forwarding table within the router. A plurality of records are stored in an ILM in the router, corresponding to different, respective label IDs, all pointing to the set of the entries in the forwarding table that belong to the multi-path routing group. Upon receiving in the router an incoming data packet having a label ID corresponding to any given record in the plurality, one of the interfaces in the group is selected, responsively to the given record and to the set of the entries in the forwarding table to which the given record points, for forwarding the incoming data packet without changing the label ID.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.