Two stage bloom filter for longest prefix match
US10158571B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2017 |
| Grant date | Dec 18, 2018 |
| Priority date | — |
| Expiry date | Mar 24, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/7453
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A device may receive a packet that includes a destination address. The device may analyze a first Bloom filter, based on the destination address, in order to identify a prefix range entry associated with the destination address and included in a set of prefix range entries associated with the first Bloom filter. The device may analyze a second Bloom filter, based on the destination address and the identified prefix range entry, in order to identify a prefix length entry associated with the destination address and included in a set of prefix length entries associated with the second Bloom filter. The device may determine routing information associated with the identified prefix length entry. The routing information may identify a longest prefix match associated with the destination address. The device may provide the packet based on the routing information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.