Data packet forwarding
US10476795B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 16, 2016 |
| Grant date | Nov 12, 2019 |
| Priority date | — |
| Expiry date | Aug 26, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/4629
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A SDN controller obtains and stores a NAT mapping relationship between a private network address and a public network of a host computer in each SDN; receives a flow table request for a data packet from a VTEP device, searching for a NAT mapping relationship corresponding to a target IP address of the data packet when determining that the data packet is forwarded across SDNs; generates a flow table used for forwarding the data packet according to the NAT mapping relationship corresponding to the target IP address searched out and network topology information, and transmits the flow table to the VTEP device, wherein the flow table comprises a NAT processing instruction for a source IP address and encapsulation information, and a target IP address in the encapsulation information is a public network address in the NAT mapping relationship searched out.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.