Method and arrangement for QOS differentiation of VPN traffic across domains
US9942159B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 28, 2014 |
| Grant date | Apr 10, 2018 |
| Priority date | — |
| Expiry date | Oct 14, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/22
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A node in a first network domain and a method performed thereby for transmitting a data packet to a VPN client in a second network domain, the node and the VPN client being part of a VPN, wherein the first and second network domain are connected by means of a third network domain are provided. The method comprises receiving, from an application server, a first packet comprising a first IP header and a payload; and determining a DCSP. The method further comprises adding a second header comprising the determined DCSP and an IP address of a VPN client resulting in a second packet and encrypting the second packet. Further the method comprises adding a third header to the encrypted second packet resulting in a third packet, the third header comprising a destination address of a node in the second network domain, and transmitting the third packet in an IP tunnel terminating at the node in the second network domain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.