System and method for maintaining a layer 2 modification buffer
US7986616B2 · kind B2 · utility
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4References
12Claims
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Key dates
| Filing date | Aug 5, 2009 |
| Grant date | Jul 26, 2011 |
| Priority date | — |
| Expiry date | Aug 5, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L49/508
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A network device for processing packets. The network devices includes a ingress module for performing lookups for layer 2 switching and performing operations for maintaining a layer 2 table. When the ingress module updates the layer 2 table, the ingress module records the operation performed on the layer 2 table in a modification buffer. Entries are added to the modification buffer when the layer 2 table is modified and in the order in which the layer 2 table was modified. The network device thus enables reconstruction of the layer 2 table by performing the operations in the modification buffer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.