Scalable flow and congestion control in a network
By monitoring the congestion status of switches in the OpenFlow network and sending messages to the source and destination to request adjustment of the data transmission rate, the congestion problem caused by the imbalance of data packet rates in the OpenFlow network is solved and the service quality of the network is improved.
CN105027506AInactive Publication Date: 2015-11-04INTERNATIONAL BUSINESS MACHINE CORPORATION
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Patent Information
- Application Number
- CN201480009707.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2013-03-15
- Filing Date
- 2014-03-05
- Publication Date
- 2015-11-04
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Technical Problem
In OpenFlow networks, an imbalance in the incoming and outgoing packet rates of data packets at switches causes network congestion, resulting in degraded service quality, packets being dropped, or transmission delays.
Method used
By monitoring congestion status in OpenFlow-capable switches, messages are sent to the source and destination independently of the OpenFlow controller, requesting to slow down or speed up the data transfer rate to alleviate congestion.
Benefits of technology
It achieves more effective flow control and congestion management in the network, reduces overall network congestion, and improves service quality.
✦ Generated by Eureka AI based on patent content.
Abstract
A method of performing congestion management in a network is provided. The method includes monitoring a congestion status at a switch in the network. It is determined at the switch that the congestion status indicates that there is congestion at the switch. Based on the congestion being related to data received at the switch from a source at a first rate, a first message is transmitted from the switch to the source requesting the source to send the data at a second rate that is slower than the first rate. Based on the congestion being related to data requests received at the switch from a destination at third rate, a second message is transmitted from the switch to the destination requesting the destination to request the data at a fourth rate slower than the third rate.
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