Command selection in a packet forwarding device
US8139583B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2008 |
| Grant date | Mar 20, 2012 |
| Priority date | — |
| Expiry date | Nov 20, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L49/00
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Packet modification is performed in the switch fabric by selecting a conditional command belonging to a set of commands for modifying a packet. The set of commands is identified based on an index value, and selecting a conditional command belonging to the set of commands is based on a mask value, where the index and mask values are determined based on data in the packet undergoing modification, such as the packet's source and destination, or incoming label. Among other advantages, controlling packet modification in the switch fabric through selecting a conditional command belonging to a set of commands allows multiple sets of commands to be replaced with a single set of commands, resulting in a more efficient use of available external memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.