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    • 2. 发明授权
    • Energy efficiency with rate adaptation
    • 能源效率与速率适应
    • US08493856B2
    • 2013-07-23
    • US12642380
    • 2009-12-18
    • Andrea FranciniDimitrios Stiliadis
    • Andrea FranciniDimitrios Stiliadis
    • G08C15/00G08C17/00H04J3/22
    • H04L47/28H04L47/2425H04L47/564
    • A system and method of rate adaptation is disclosed for energy efficiency. The system and method of rate adaptation for energy efficiency provides for parsing a heterogeneous network into rate-adaptation domains that are fully isolated with respect to the control of their operating states. The system and method is particularly useful for creating the conditions for the incremental introduction of rate-adaptive devices in existing networks; combining the best properties of sleep-state exploitation and rate scaling techniques by defining a class of state-setting policies for rate adaptation schemes that enforce tight deterministic bounds on the extra delay that the schemes may cause to network traffic at every node where they are deployed.
    • 公开了一种能量效率的系统和速率适应方法。 用于能量效率的速率适配的系统和方法提供了将异构网络解析为相对于其操作状态的控制而被完全隔离的速率适配域。 该系统和方法对于创建用于在现有网络中增量引入速率自适应设备的条件特别有用; 结合睡眠状态利用的最佳属性和速率缩放技术,通过定义一类用于速率适配方案的状态设置策略,这些策略强制执行紧密的确定性边界,以使得方案可能导致其部署在其每个节点处的网络流量的额外延迟 。
    • 4. 发明授权
    • Multicast scheduling and replication in switches
    • 交换机中的组播调度和复制
    • US07649882B2
    • 2010-01-19
    • US10402589
    • 2003-03-28
    • Dimitrios Stiliadis
    • Dimitrios Stiliadis
    • H04L12/56H04J3/24
    • H04L12/1881H04L12/5601H04L49/104H04L49/201H04L49/90H04L49/901H04L2012/5642
    • A communications switch or router employs a replication server to perform batch processing of multicast connections. The replication server performs three distinct forms of processing using staging queues: packet arrival processing, packet replication processing, and per-interface transmission processing. Packet arrival processing queues arriving packets in session queues, adds new multicast sessions to a replication set, and assigns a counter equivalent to the fan-out of the multicast session. Packet replication processing assigns a descriptor to packets of each session in the replication set, and copies the descriptor to each per-interface queue. Per-interface transmission processing examines each descriptor in the per-interface queue, copies the corresponding packets for transmission by the interface, adjusts the counter as each packet is copied, and clears the packet in the switch based on the adjusted counter.
    • 通信交换机或路由器使用复制服务器来执行组播连接的批处理。 复制服务器使用分段队列执行三种不同形式的处理:分组到达处理,分组复制处理和每接口传输处理。 分组到达处理将到达的分组队列到会话队列中,将新的多播会话添加到复制集合,并且向多播会话的扇出分配等于的计数器。 分组复制处理为复制集中的每个会话的分组分配描述符,并将描述符复制到每个接口队列。 每接口传输处理检查每接口队列中的每个描述符,复制相应的数据包以进行传输,在每个数据包被复制时调整计数器,并根据调整后的计数器清除交换机中的数据包。
    • 5. 发明授权
    • Scheduling of guaranteed-bandwidth low-jitter traffic in input-buffered switches
    • 在输入缓冲交换机中调度保证带宽低抖动流量
    • US07359384B2
    • 2008-04-15
    • US10348385
    • 2003-01-21
    • Muralidharan S. KodialamTirunell V. LakshmanDimitrios Stiliadis
    • Muralidharan S. KodialamTirunell V. LakshmanDimitrios Stiliadis
    • H04L12/56
    • H04L47/521H04L47/28H04L47/50H04L47/56H04L49/254
    • A switch schedules guaranteed-bandwidth, low-jitter-traffic characterized by a guaranteed rate table (GRT) method. A rate matrix generated from collected provisioning information is decomposed into schedule tables by a low jitter (LJ) decomposition method. The LJ decomposition method imposes a set of constraints for the schedule tables: schedule tables are partial permutation matrices, weighted sum of the partial permutation matrices is greater than or equal to the weighted sum of the rate matrix, and each entry in the rate matrix belongs to one element of the LJ decomposition schedule matrices. An integer LJ decomposition programming problem is employed to generate the schedule tables that are scheduled for each time slot of the period of the switch. Schedule tables are selected in turn based upon selecting eligible tables having the earliest finishing time. If necessary, the rate matrix is updated prior to decomposition for a subsequent period.
    • 交换机调度保证带宽,低抖动流量,其特征在于保证速率表(GRT)方法。 从收集的配置信息生成的速率矩阵通过低抖动(LJ)分解方法分解为调度表。 LJ分解方法对调度表施加一组约束:调度表是部分置换矩阵,部分置换矩阵的加权和大于或等于速率矩阵的加权和,并且速率矩阵中的每个条目都属于 到LJ分解调度矩阵的一个元素。 采用整数LJ分解编程问题来生成为交换周期的每个时隙调度的调度表。 根据选择具有最早完成时间的合格表,依次选择计划表。 如果需要,速率矩阵在分解之前在随后的时间段内被更新。