Forwarding packet fragments using L4-L7 headers without reassembly in a software-defined networking (SDN) system
US9736057B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 18, 2014 |
| Grant date | Aug 15, 2017 |
| Priority date | — |
| Expiry date | Feb 12, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L47/34
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A network element of a software-defined networking (SDN) system forwards IP packet fragments without reassembly is disclosed. The network element receives an IP packet fragment and determines whether the fragment is the first fragment of an original IP packet. If the fragment is the first fragment, then fields in the first fragment that are associated with open systems interconnection layers (OSI) 4-7 are retrieved and placed in an entry in a fragment information table so that the entry is associated with the original IP packet. If the received fragment is not the first fragment, then a matching entry in the fragment information table is to be identified and the associated OSI layers 4-7 information is retrieved for processing the non-first fragment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.