Systems and methods for augmenting TCAM bank processing with exact match
US11343189B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 1, 2020 |
| Grant date | May 24, 2022 |
| Priority date | — |
| Expiry date | Nov 25, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/74591
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Systems and methods are provided for programming a network device. A method includes receiving a wild card entry at the network device, the network device including a ternary content addressable memory (TCAM) table and an exact match (EM) table. The method determines whether the wild card entry is compatible with the EM table. In response to determining that the wild card entry is compatible with the EM table, the method determines the available space in the EM table, the usage of the TCAM table, and at least one flow characteristic of the wild card entry. The method evaluates the determined available space in the EM table, usage of the TCAM table, and the at least one flow characteristic against a set of stored rules that select the EM table or the TCAM table. The method programs the wild card entry in the EM table or TCAM table based upon the selection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.