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    Dynamic flowlet prioritization
    4.
    发明授权
    Dynamic flowlet prioritization 有权

    公开(公告)号：US10382345B2

    公开(公告)日：2019-08-13

    申请号：US15682339

    申请日：2017-08-21

    Applicant: Cisco Technology, Inc.

    Inventor： Mohammadreza Alizadeh Attar ,  Thomas James Edsall ,  Sarang Dharmapurikar

    IPC: H04L12/833 ,  H04L12/841

    Abstract: In one embodiment, a next set of packets in a first flow may be identified. A counter may be incremented, where the counter indicates a first number of initial sets of packets in first flow that have been identified. The identified next set of packets may be prioritized such that the first number of initial sets of packets in the first flow are prioritized and a sequential order of all packets in the first flow is maintained. The identifying, incrementing, and prioritizing may be repeated until no further sets of packets in the first flow remain to be identified or the first number of initial sets of packets is equal to a first predefined number.

    Dynamic protection of shared memory used by output queues in a network device
    5.
    发明授权
    Dynamic protection of shared memory used by output queues in a network device 有权

    公开(公告)号：US10305819B2

    公开(公告)日：2019-05-28

    申请号：US14710822

    申请日：2015-05-13

    Applicant: Cisco Technology, Inc.

    Inventor： Mohammadreza Alizadeh Attar ,  Vinod Mitulal ,  Krishnan Subramani ,  Georges Akis ,  Peter Newman

    IPC: H04L12/823 ,  H04L12/863 ,  H04L12/925 ,  H04L12/933 ,  H04L12/935 ,  H04L12/931

    Abstract: A network switch includes a buffer to store network packets linked to queues to feed the packets to output ports of the switch associated with the queues. The buffer is shared dynamically among multiple traffic pools. The network switch determines per-pool dynamic thresholds each based on an amount of unused buffer space, and per-queue dynamic thresholds based on amounts of unused buffer space available in the pools with which the queues are associated. The network switch receives packets, and for each received packet, the network switch admits the packet to the pool with which the packet is associated and the queue for which the packet is destined if (i) occupancy of the associated pool is less than the corresponding per-pool dynamic threshold, and (ii) occupancy of the queue for which the packet is destined is less than the corresponding per-queue dynamic threshold, and otherwise drops the packet.

    Dynamic Protection Of Shared Memory And Packet Descriptors Used By Output Queues In A Network Device
    9.
    发明申请
    Dynamic Protection Of Shared Memory And Packet Descriptors Used By Output Queues In A Network Device 有权
    网络设备中输出队列使用的共享内存和数据包描述符的动态保护

    公开(公告)号：US20160337142A1

    公开(公告)日：2016-11-17

    申请号：US14710974

    申请日：2015-05-13

    Applicant: Cisco Technology, Inc.

    Inventor： Mohammadreza Alizadeh Attar ,  Sha Ma ,  Vinod Mitulal ,  Krishnan Subramani ,  Georges Akis ,  Peter Newman

    IPC: H04L12/18 ,  H04L12/861 ,  H04L12/865 ,  H04L12/863

    CPC classification number: H04L12/1881 ,  H04L47/6255 ,  H04L47/6275 ,  H04L49/901 ,  H04L49/9047

    Abstract: A network switch includes a buffer to store network packets and packet descriptors (PDs) used to link the packets into queues for output ports. The buffer and PDs are shared among the multiple traffic pools. The switch receives a multicast packet for queues in a given pool. The switch determines if there is unused buffer space available for packets in the given pool based on a pool dynamic threshold, if there is unused buffer space available for packets in each queue based on a queue dynamic threshold for the queue, if there are unused PDs available to the given pool based on a pool dynamic threshold for PDs, and if there are unused PDs available for each queue based on a queue dynamic threshold for PDs for the queue. The network switch admits the packet only into the queues for which all of the determining operations pass.

    Abstract translation: 网络交换机包括用于存储用于将分组链接到用于输出端口的队列的网络分组和分组描述符（PD）的缓冲器。 缓冲区和PD在多个流量池之间共享。 交换机接收给定池中队列的组播数据包。 如果存在未使用的PD，则根据队列的动态阈值，如果每个队列中的数据包有可用的未使用的缓冲区空间，交换机将根据池动态阈值确定是否存在可用于给定池中的数据包的未使用的缓冲区空间 基于PD的池动态阈值对给定池可用，以及基于队列的队列动态阈值的队列动态阈值是否存在可用于每个队列的未使用的PD。 网络交换机仅将数据包仅允许到所有确定操作通过的队列中。

    SYSTEM AND METHOD FOR MULTI-PATH LOAD BALANCING IN NETWORK FABRICS
    10.
    发明申请
    SYSTEM AND METHOD FOR MULTI-PATH LOAD BALANCING IN NETWORK FABRICS 审中-公开
    网络织物多路负载平衡的系统与方法

    公开(公告)号：US20150127797A1

    公开(公告)日：2015-05-07

    申请号：US14308464

    申请日：2014-06-18

    Applicant: Cisco Technology, Inc.

    Inventor： Mohammadreza Alizadeh Attar ,  Thomas J. Edsall ,  Sarang M. Dharmapurikar ,  Janakiramanan Vaidyanathan

    IPC: H04L12/803

    Abstract: In accordance with one embodiment, a source leaf device receives a packet. The source leaf device identifies a flowlet associated with the packet and a destination leaf device to which the packet is to be transmitted. The source leaf device may determine whether the flowlet is a new flowlet. The source leaf device may select an uplink of the source leaf device via which to transmit the flowlet to the destination leaf device according to whether the flowlet is a new flowlet. The source leaf device may then transmit the packet to the destination leaf device via the uplink.

    Abstract translation: 根据一个实施例，源叶设备接收分组。 源叶设备识别与分组相关联的流和要发送分组的目的地叶设备。 源叶装置可以确定该流是否是新的流。 源叶设备可以根据该流是否是新的流，选择源叶设备的上行链路，通过该源设备向该目的地叶设备传送该流。 源叶设备然后可以经由上行链路将分组发送到目的地叶设备。

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