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drop precedence
相关语句
  丢弃优先级
     In this paper, We studied algorithms of active queue management for DiffServ AF PHB and analyzed the difference of calculation for average queue size and drop probability with these algorithms, then discussed the ability to protect lower drop precedence traffic of WRED and RIO.
     文章对区分服务中AFPHB的主动队列管理算法进行了研究,分析了几种算法在平均队长和丢弃概率计算上的差别,探讨了WRED和RIO算法对低丢弃优先级包的保护能力。
短句来源
  “drop precedence”译为未确定词的双语例句
     Analyzed in this parper are some shortcomings inherent in RED and its improved algorithms in terms of fairness and packet drop precedence, and then proposed is a novel queue management algorithm named TCRED (three color random early drop) using a same suite of RED parameter to control green, yellow and red packets.
     在分析了 RED及其改进算法在公平性及分组优先级等方面存在的不足后 ,提出了一种采用同一组 RED参数对三色分组实行队列管理的 TCRED算法 .
短句来源
     The algorithm implements relative drop precedence among different colored packets, assures the customers of their booked bandwidth, and realizes graceful upgrade and degrade of packet drop precedence; it thus well meets the requirements of AF PHB.
     该算法能实现分组的相对优先级 ,保证用户所预定的带宽 ,同时能实现分组优先级的平滑升级和降级 ,因而很好地满足了 AF PHB的要求
短句来源
     This scheme does not meet the need of DiffServ model, while RED and its improved algorithms also suffer from shortcoming in term of fairness and relative drop precedence.
     而RED及其改进算法CHOKe也不能提供公平性和相对优先级的保证。
短句来源
     This algorithm achieves fairness and relative drop precedence, and keep the scalability of the IP network.
     该算法提供了公平性和相对优先级的保证,并且保持下现有IP网的可扩展性。
短句来源
  相似匹配句对
     drop.
     drop,第1天。
短句来源
     ON DROP PROPERTY
     关于drop性质
短句来源
     This algorithm achieves fairness and relative drop precedence, and keep the scalability of the IP network.
     该算法提供了公平性和相对优先级的保证,并且保持下现有IP网的可扩展性。
短句来源
     Thinking on Rights' Precedence
     关于权利是否具有顺序性的思辨
短句来源
     THE GENERALIZED PRECEDENCE GRAMMAR
     广义优先文法
短句来源
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  drop precedence
Within each set, there are three DSCP code points corresponding to different drop precedence levels.
      
Within an AF class, packets can be dropped based on the drop precedence scheme using WRED.
      
Within each AFx class, it is possible to specify 3 drop precedence values.
      
We first show that both strategies can provide different levels of drop precedence in DiffServ AF.
      
Within each AF class, an IP packed can be assigned one of three different levels of drop precedence.
      
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Mechanisms able to provide the AF PHB in DiffServ networks constitute a significant research topic. Most of the current implementations of AF use RED or similar queue management techniques. Analyzed in this parper are some shortcomings inherent in RED and its improved algorithms in terms of fairness and packet drop precedence, and then proposed is a novel queue management algorithm named TCRED (three color random early drop) using a same suite of RED parameter to control green, yellow and red packets....

Mechanisms able to provide the AF PHB in DiffServ networks constitute a significant research topic. Most of the current implementations of AF use RED or similar queue management techniques. Analyzed in this parper are some shortcomings inherent in RED and its improved algorithms in terms of fairness and packet drop precedence, and then proposed is a novel queue management algorithm named TCRED (three color random early drop) using a same suite of RED parameter to control green, yellow and red packets. TCRED calculates the average queue length of these colored packets respectively, accounting for the effect of both packet arrival and packet departure, and computes packet drop probability based on calculated average queue length. The algorithm implements relative drop precedence among different colored packets, assures the customers of their booked bandwidth, and realizes graceful upgrade and degrade of packet drop precedence; it thus well meets the requirements of AF PHB.

AF PHB的实现机制是 Diff Serv网络的重要研究课题 ,目前的多数实现采用了 RED或类似的队列管理技术 .在分析了 RED及其改进算法在公平性及分组优先级等方面存在的不足后 ,提出了一种采用同一组 RED参数对三色分组实行队列管理的 TCRED算法 .TCRED对不同颜色的分组分别计算平均队列长度 ,并考虑了分组的到达和离去对平均队长的影响 ,据此计算出各色分组的丢弃几率 .该算法能实现分组的相对优先级 ,保证用户所预定的带宽 ,同时能实现分组优先级的平滑升级和降级 ,因而很好地满足了 AF PHB的要求

Packet discarding scheme is an important control policy for Per-Hop Behavior(PHB)in DiffServ model.Cur-rent Internet typically uses"Drop Tail"as its packet discarding scheme ,this scheme doesn't meet the need of DiffServ model,while RED and its improved algorithms also suffer from shortcomings in terms of fairness and relative drop precedence.This paper analyzes several popular packet discarding algorithms ,proposes a novel algorithm named TCRED(Three Color RED)based on DiffServ model,which using...

Packet discarding scheme is an important control policy for Per-Hop Behavior(PHB)in DiffServ model.Cur-rent Internet typically uses"Drop Tail"as its packet discarding scheme ,this scheme doesn't meet the need of DiffServ model,while RED and its improved algorithms also suffer from shortcomings in terms of fairness and relative drop precedence.This paper analyzes several popular packet discarding algorithms ,proposes a novel algorithm named TCRED(Three Color RED)based on DiffServ model,which using a same suite of RED parameter to control Green,Yellow and Red packets.Simulation demonstrates that TCRED algorithm well meets the requirements of AF PHB.

分组丢弃算法是区分服务模型中“逐跳行为”(PHB)的重要控制策略。目前Internet网络中采用的分组丢弃策略大多为尾部丢弃(DropTail),不能适应区分服务模型的要求;而RED及其改进算法也不能提供公平性和相对优先级的保证。文章简要分析了目前常见分组丢弃算法所存在的不足之处,提出了一种基于区分服务模型的新型分组丢弃算法----TCRED算法,该算法采用同一组RED参数对三种颜色的分组进行队列管理。实验表明,TCRED算法很好地满足了AFPHB的要求。

A new active queue management mechanism, named the measurement-based active queue management, was developed to eliminate the unfair bandwidth sharing in the random early detection method. The current flow rate is estimated from measurements, with the rate dynamically adjusted according to the queue length and the discard possibility for an incoming packet based on a comparison of the two rate values. Dropping precedence can be calculated for all flows by regulating the parameters. Theoretical analysis...

A new active queue management mechanism, named the measurement-based active queue management, was developed to eliminate the unfair bandwidth sharing in the random early detection method. The current flow rate is estimated from measurements, with the rate dynamically adjusted according to the queue length and the discard possibility for an incoming packet based on a comparison of the two rate values. Dropping precedence can be calculated for all flows by regulating the parameters. Theoretical analysis and simulations show that the mechanism provides approximately fair bandwidth sharing among all input flows.

针对RED(RandomEarlyDetection)队列管理算法不能实现业务流之间带宽公平共享,提出了基于测量的主动队列管理算法(MBAQM)。这种算法采用基于测量和预测的方式估计不同业务流的输入速率,并根据队列大小计算出新到来包的丢弃概率,在维持较少的流状态情况下,通过队列的丢弃机制,实现了不同速率输入业务流之间的链路公平共享。通过对参数的调整还可以实现优先带宽分配机制。该文从理论上说明了该算法能够保证各业务流近似公平地共享输出链路带宽,同时给出相应的仿真结果。

 
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