- 专利标题: Determining rate differential weighted fair output queue scheduling for a network device
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申请号: US17176754申请日: 2021-02-16
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公开(公告)号: US11558775B2公开(公告)日: 2023-01-17
- 发明人: Craig R. Frink , Anurag P. Gupta , Harshad B. Agashe , Weidong Xu
- 申请人: Juniper Networks, Inc.
- 申请人地址: US CA Sunnyvale
- 专利权人: Juniper Networks, Inc.
- 当前专利权人: Juniper Networks, Inc.
- 当前专利权人地址: US CA Sunnyvale
- 代理机构: Harrity & Harrity, LLP
- 主分类号: H04W28/02
- IPC分类号: H04W28/02 ; H04L12/867 ; H04L12/873 ; H04L47/52 ; H04L47/629
摘要:
A network device may receive packets and may calculate, during a time interval, an arrival rate and a departure rate, of the packets, at one of multiple virtual output queues. The network device may calculate a current oversubscription factor based on the arrival rate and the departure rate, and may calculate a target oversubscription factor based on an average of previous oversubscription factors associated with the multiple virtual output queues. The network device may determine whether a difference exists between the target oversubscription factor and the current oversubscription factor and may calculate, when the difference exists, a scale factor based on the current oversubscription factor and the target oversubscription factor. The network device may calculate new scheduling weights based on prior scheduling weights and the scale factor, and may process packets received by the multiple virtual output queues based on the new scheduling weights.
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