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    Adjusting rate of outgoing data requests for avoiding incast congestion
    31.
    发明申请
    Adjusting rate of outgoing data requests for avoiding incast congestion 审中-公开

    公开(公告)号：US20200084150A1

    公开(公告)日：2020-03-12

    申请号：US16559640

    申请日：2019-09-04

    Applicant: Mellanox Technologies, Ltd.

    Inventor： Idan Burstein ,  Noam Bloch ,  Roee Moyal ,  Ariel Shahar ,  Yamin Friedman ,  Yuval Shpigelman

    IPC: H04L12/801 ,  H04L12/927 ,  H04L12/841 ,  H04L12/863 ,  H04L29/08

    Abstract: A network adapter includes circuitry and one or more ports. The ports connect to a communication network including multiple network elements. The circuitry accesses outbound messages that are pending to be sent over the communication network to multiple remote nodes via the ports. At least some of the outbound messages request the remote nodes to send respective amounts of data back to the network adapter. Based on the amounts of data requested by the outbound messages, the circuitry forecasts a bandwidth of inbound response traffic, which is expected to traverse a selected network element in response to the outbound messages toward the network adapter, determines a schedule for transmitting the outbound messages to the remote nodes so that the forecasted bandwidth meets a bandwidth supported by the selected network element, and transmits the outbound messages to the remote nodes in accordance with the determined schedule.

    REMOTE DIRECT MEMORY ACCESS (RDMA) MULTIPATH
    35.
    发明公开
    REMOTE DIRECT MEMORY ACCESS (RDMA) MULTIPATH 审中-公开

    公开(公告)号：US20240195728A1

    公开(公告)日：2024-06-13

    申请号：US18443928

    申请日：2024-02-16

    Applicant: Mellanox Technologies, Ltd.

    Inventor： Yamin Friedman ,  Idan Borshteen ,  Roee Moyal ,  Yuval Shpigelman

    IPC: H04L45/12 ,  H04L43/0864 ,  H04L45/24 ,  H04L47/52

    CPC classification number: H04L45/124 ,  H04L43/0864 ,  H04L45/24 ,  H04L47/52

    Abstract: Technologies for spreading a burst of data across multiple network paths in remote direct memory access (RDMA) over converged Ethernet (RoCE) and InfiniBand are described. A network interface controller sends a first burst of a transport flow directed to a second node over a first network path. The network interface controller determines that a second burst is to be sent over a different network path, and identifies a second network path using a multipath context. The multipath context stores a first weight value or a first state associated with the first network path and a second weight value or a second state associated with the second network path. The network interface controller sends the second burst of data to the second node via the second network path.

    Transaction-based reliable transport
    39.
    发明授权
    Transaction-based reliable transport 有权

    公开(公告)号：US11622004B1

    公开(公告)日：2023-04-04

    申请号：US17890385

    申请日：2022-08-18

    Applicant: Mellanox Technologies, Ltd.

    Inventor： Yamin Friedman ,  Idan Burstein ,  Ariel Shahar ,  Diego Crupnicoff ,  Roee Moyal

    IPC: H04L67/1097

    Abstract: A method for communication includes receiving in a network device work requests posted by a host processor to perform a series of communication transactions, including at least a first transaction and a second transaction comprising first and second operations to be executed in a sequential order in response to corresponding first and work requests posted by the host processor. In response to the work requests, data packets are transmitted over a network from the network device to a destination node and corresponding responses are received from the destination node. Based on the received responses, completion of the first operations in the first transaction is reported from the network device to the host processor according to the sequential order, and completion of the second operation in the second transaction is reported from the network device to the host processor regardless of whether the first transaction has been completed.

    Selective retransmission of packets
    40.
    发明申请
    Selective retransmission of packets 有权

    公开(公告)号：US20220158772A1

    公开(公告)日：2022-05-19

    申请号：US17107990

    申请日：2020-12-01

    Applicant: MELLANOX TECHNOLOGIES, LTD.

    Inventor： Idan Burstein ,  Roee Moyal ,  Ariel Shahar ,  Noam Bloch ,  Ran Koren

    IPC: H04L1/18 ,  G06F15/173

    Abstract: A method for data transfer includes transmitting a sequence of data packets from a first computer over a network to a second computer in a single RDMA data transfer transaction. Upon receipt of a second packet in the sequence without previously having received the first packet, the second computer sends a NAK packet over the network to the first computer, indicating that the first packet was not received. A retransmission mode is selected responsively to the type of the transaction, such that when the transaction is of a first type, the first packet is retransmitted from the first computer to the second computer in response to the NAK packet without retransmitting the second packet, and when the transaction is of a second type, both the first and second packets are retransmitted from the first computer to the second computer in response to the NAK packet.

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