Resilient hashing with compression
US10917346B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 6, 2019 |
| Grant date | Feb 9, 2021 |
| Priority date | — |
| Expiry date | Mar 6, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/1001
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Techniques for implementing resilient hashing with compression are provided. In some embodiments, a network device can maintain a compressed partition and an uncompressed partition for a logical hash table, where the logical hash table comprises a first set of mappings between bucket identifiers and active next-hop destinations, the compressed partition comprises a second set of mappings between compressed indices and the active next-hop destinations, and the uncompressed partition comprises a third set of mappings between uncompressed indices and the active next-hop destinations. The network device can compute a hash value using a portion of a packet. When the hash value is addressed by a compressed index, the packet is sent to a next-hop destination in the compressed partition. When the hash value is addressed by an uncompressed index, the packet is sent to a next-hop destination in the uncompressed partition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.