Quality of service for inbound network traffic flows
US8681614B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2011 |
| Grant date | Mar 25, 2014 |
| Priority date | — |
| Expiry date | Apr 26, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L41/5019
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An edge network device controls the quality-of-service of incoming network traffic flows by limiting the bandwidth of incoming network traffic flows. To ensure that incoming network traffic classes quickly converge to the desired bandwidth allocations, the maximum bandwidth allocation to each network traffic class is dynamically varied based on current overall usage. The maximum bandwidth allocated to each traffic class at any given moment is the sum of its minimum guaranteed bandwidth and a portion of the available excess bandwidth. Each traffic class' portion of the excess bandwidth is proportional to the ratio between its minimum guaranteed bandwidth and the sum of all traffic classes' minimum guaranteed bandwidths. Phantom network packets equivalent to the difference between each traffic class' allocated and actual bandwidth may be added to its scheduling queue to implement this dynamic variation. Phantom packets occupy transmission slots during packet scheduling and are discarded when selected for transmission.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.