Patent · US Active

User traffic accountability under congestion in flow-based multi-layer switches

US9231876B2 · kind B2 · utility

45Cited by

5References

18Claims

0Family size

Assignee

NEC EUROPE LTD. · DE

Inventors

Faisal-Ghias Mir · Heidelberg, DE
Marcus Brunner · Wuppertal, DE
Rolf Winter · Portland, US
Dirk Kutscher · Heidelberg, DE

Key dates

Filing date	Sep 6, 2011
Grant date	Jan 5, 2016
Priority date	—
Expiry date	Dec 29, 2031

Classification

Technology area (CPC H)Electricity
CPC primaryH04L47/30
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A method of policing network traffic based on congestion on a flow-based programmable switch, such as an OpenFlow switch is provided. The method polices congestion-causing flows in a network by detecting congestion at a flow-based programmable switch on the network. Once congestion has been detected, the method identifies one or more flows that are causing the congestion at the flow-based programmable switch, and penalizes the flows that were identified as causing congestion. A flow-based programmable switch including a data plane having input ports, output ports, and forwarding rules that map packets received on an input port to an output port based on a packet matching a rule in the forwarding rules is also described.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.