发明授权
- 专利标题： Router with class of service mapping
- 专利标题（中）： 路由器具有服务类映射
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申请号： US09616842申请日： 2000-07-14
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公开(公告)号： US07106731B1公开(公告)日： 2006-09-12
- 发明人: Arthur Lin , Thomas J. Edsall , Tauseef Hashmi
- 申请人： Arthur Lin , Thomas J. Edsall , Tauseef Hashmi
- 申请人地址： US CA San Jose
- 专利权人： Cisco Technology, Inc.
- 当前专利权人： Cisco Technology, Inc.
- 当前专利权人地址： US CA San Jose
- 代理机构： Cesari and McKenna LLP
- 主分类号： H04L12/56
- IPC分类号： H04L12/56
摘要：
A router classifies packets assigned to X*Y classes of service into X classes of service supported by the router, each of the X classes of service having Y loss-priority levels. The router maintains a free queue that links available entries of a buffer in which packets are stored. A weighted average depth of the free queue is used to determine whether to retain a given packet. If the weighted average is above a maximum threshold, the packet is retained. If the weighted average is below a minimum threshold, the packet is discarded. If the weighted average is between the two thresholds, a probability of discard that is based on the X*Y classes of service is calculated and compared to a random value to determine whether the packet should be retained.
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