VOQ

Study on scheduling algorithms for VOQ input - buffer switches

基于VOQ输入缓存交换系统调度算法研究

Cell scheduling algorithm based on VOQ input-buffer strategy is a key factor of improving switch performance .

基于VOQ缓存策略的信元调度算法是提升交换系统性能的关键因素。

The input queuing switching architecture with VOQ is widely used in modern packet switching fabrics .

基于VOQ的输入排队交换结构是当前分组交换网络最常用的结构。

If VOQ queueing policies are used with some cell scheduling algorithms , the 100 % throughput can be achieved .

采用虚拟输出排队方法（VOQ）和适当的信元调度算法可消除HOL，使吞吐率达到100%。

VOQ demultiplexing algorithm and implementation

VOQ输出端解复用算法及其技术实现

The simulation results show that the DSA scheduler outperforms iSLIP scheduling algorithm under all traffic . DSA can work efficiently in VOQ switch .

仿真结果表明：在各种流量下，DSA算法都比信元调度算法具有更好的调度性能。

Based on the Crossbar switching fabrics with virtual output queuing ( VOQ ) buffers , an effective Hopfield neural network ( HNN ) based control approach for scheduling cell is proposed .

基于虚拟输出队列（VOQ）缓存的Crossbar交换结构，提出了一种Hopfield神经网络（HNN）控制的信元交换调度方法。

To improve the communication efficiency , a new communication-scheduling algorithm named DSA ( Distributed Scheduling Algorithm ) was put forward in VOQ switch by scheduling high-speed data packet in every output port independently .

为提高高速通信网络的通信效率，针对VOQ交换机，提出在交换机的各个输出端口中进行分布式通信调度（DSA）的策略。

This paper study the virtual output queuing ( VOQ ) model based on crossbar with switch fabric , queuing models , throughput and arbitration algorithms , to provides a meaning conclusion to build high bandwidth switches .

此文对基于Crossbar结构的虚输出队列（VOQ）模型从交换结构、排队模型、实现原理、吞吐率和调度算法方面进行了分析和研究，为构造高带宽的交换机提供了有意义的结论。

Finally , according to the implementation requirement of QoS in the terabit router , we present a two-stage QoS scheduling architecture including the VOQ queue management based on output ports in the input side and priority based queue in the output side .

最后通过T比特路由器QoS实现的需求，提出了输入侧基于输出端口VOQ排队和输出侧基于优先级排队的两级调度QoS实现结构，并给出了该结构下T比特高性能路由器的QoS实现方案。

It is well known that Head-Of-Line ( HOL ) blocking limits the throughput of an input-queued switch with FIFO queues , but HOL blocking can be eliminated entirely by using a queueing technique known as Virtual Output Queueing ( VOQ ) .

信头阻塞（HOL）限制了采用FIFO输入队列交换机的吞吐率，而使用虚输出队列（VOQ）技术可以完全消除HOL阻塞。

The permutation with the largest matched occupancy was used to find the matching on each frame boundary . Simulation was made on a 4 × 4 virtual output queue ( VOQ ) optical switch under uniform , nonuniform and diagonal Bernoulli and ON / OFF traffic patterns , respectively .

在4×4端口的VOQ（VirtualOutputQueue）结构的光交换机中，分别对均匀、非均匀以及对角线的Bernoulli和ON/OFF业务进行了仿真。

It has been proved that combining VOQ ( virtual output queueing ) technology and some weighted scheduling algorithms , such as LQF ( longest queue first ) and OCF ( oldest cell first ), the switch throughput can reach 100 % for all cell arrivals with independent distributions .

对于独立的信元到达，VOQ（virtualoutputqueueing）技术与LQF（longestqueuefirst）和OCF（oldestcellfirst）等加权调度算法的结合使用可以使利用交换开关的吞吐率达到100%。