System and method for ECMP load sharing
US7903654B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2006 |
| Grant date | Mar 8, 2011 |
| Priority date | — |
| Expiry date | Oct 8, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L47/2408
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A packet classifier and a method for routing a data packet are provided. The packet classifier includes a content addressable memory, a translation table and a parameter memory. The method includes looking up a content addressable memory for a base address into a parameter memory using a header of the data packet. The base address is related to the routes under ECMP for forwarding the data packet. From among these addresses, using multiple headers of the data packet, an adjustment to the base address is computed. The adjustment specifies an actual address to the parameter memory corresponding to a selected route for forwarding the data packet. The parameter memory is then accessed using the actual address to obtain parameter values relevant to the selected route. The data packet is then forwarded according to the parameter values thus obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.