Method and system for congestion management in networks
US8441922B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 24, 2011 |
| Grant date | May 14, 2013 |
| Priority date | — |
| Expiry date | Jan 19, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L49/357
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In a network having a computing system interfacing with a storage system via a switch, an average transmit wait count value is compared with a first threshold value. The average transmit wait count value is updated when a switch port has a frame available for transmission but is unable to transmit the frame if a port of the storage system is unable to receive the frame or if another switch port is unable to receive the frame. A congestion message is generated for notifying a management module of congestion at the switch port when the average transmit wait count value reaches the first threshold value. Depending upon the characteristics of the congestion, a notification is sent to the computing system to either only reduce a rate of write operations to reduce congestion, or to reduce both the rate of write operations and a rate of read operations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.