Data stream of network is random. Arrival time, length and processing time of data packet are random variable.
网络中的数据流是不确定的，数据包的到达时间、长度和处理时间都是随机变量。
In this paper, we suggest to use PPS for the variable-length packet switching.
文章提出将多平面交换的结构用于变长数据包的交换。
On packet scheduling: A novel multi-stage buffering PPS and the Distributed Variable-Length Packet Scheduling (DVLPS) algorithm are present.
分组调度方面：提出了一种新的多级缓存并行分组交换结构和一种分布式变长分组调度算法（DVLPS）。
We designed and implemented a simplified link-level protocol with elastic buffered flow-control and buffered wormhole routing switching, it can support to transmit variable-length packet.
提出了一种采用伸缩缓冲流量控制方法、缓冲虫洞路由交换机制、支持可变长度数据包传输的链路控制协议。
For processing variable length packet, current routers usually separate the packet into the smaller fixed-size one before buffering, or simply provide the packet with a fixed-length buffer.
现代网络设备常采用固定长度缓冲区机制来缓冲可变长度数据包，或采用信元机制将可变长度数据包进行定长化处理后再完成缓冲操作。
For processing variable length packet, current routers usually separate the packet into the smaller fixed-size one before buffering, or simply provide the packet with a fixed-length buffer.
现代网络设备常采用固定长度缓冲区机制来缓冲可变长度数据包，或采用信元机制将可变长度数据包进行定长化处理后再完成缓冲操作。
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