Rate limiting per-flow of traffic to CPU on network switching and routing devices
US8255515B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 17, 2006 |
| Grant date | Aug 28, 2012 |
| Priority date | — |
| Expiry date | Jun 4, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L47/24
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A network device for use in a networking system. The network device includes a packet processor adapted to receive control packets at a network port of the network device. The packet processor is also adapted to assign a CPU code to the control packets. The network device also includes a CPU in communication with the packet processor and a lookup table indexed by the CPU code and in communication with the packet processor. According to embodiments of the present invention, one or more entries in the lookup table define a rate limit in accordance with which packets characterized by the CPU code are delivered from the packet processor to the CPU.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.