Network congestion notification preservation and modification during transmission of network data between physical network and virtual network
US9112804B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 31, 2012 |
| Grant date | Aug 18, 2015 |
| Priority date | — |
| Expiry date | Feb 14, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L47/26
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A virtual network is implemented on a physical network. A virtual network data packet is tunneled through the physical network via encapsulation within a physical network data packet and via transmission of the physical network data packet through the physical network. A network congestion notification capability of the virtual network is preserved and modified during transmission of virtual network data through the physical network and vice-versa. Congestion notification metadata can be copied from a header of a virtual network data packet to a header of a physical network data packet when the virtual network data packet is encapsulated into the physical network data packet. Congestion notification metadata can be copied from a header of a physical network data packet to a header of a virtual network data packet when the virtual network data packet is decapsulated from the physical network data packet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.