公开(公告)号：US11709321B2

公开(公告)日：2023-07-25

申请号：US17503314

申请日：2021-10-17

Applicant: MELLANOX TECHNOLOGIES TLV LTD.

Inventor： Henning Lysdal ,  Barak Gafni

IPC: G02B6/35 ,  F21V8/00 ,  H04J14/02

CPC classification number: G02B6/3548 ,  G02B6/0026 ,  H04J14/0209

Abstract: An optical cable includes a single optical connector configured for insertion into an optical receptacle so as to receive optical signals at a plurality of different wavelengths from the optical receptacle, and multiple electrical connectors, configured for insertion into respective electrical receptacles. Each electrical connector includes a transceiver configured to convert the optical signals into electrical output signals for output to an electrical receptacle. The optical cable further includes a plurality of optical fibers, having respective first ends connected together to the single optical connector so as to receive the optical signals. Each of the optical fibers has a respective second end coupled to a respective one of the electrical connectors. Wavelength selection optics are associated with the optical fibers so that the transceiver in each of the electrical connectors receives the optical signals at a different, respective one of the wavelengths.

公开(公告)号：US20220353174A1

公开(公告)日：2022-11-03

申请号：US17246736

申请日：2021-05-03

Applicant: Mellanox Technologies TLV Ltd.

Inventor： Aviv Kfir ,  Barak Gafni ,  Ilya Vershkov

IPC: H04L12/707 ,  H04L12/721

Abstract: A network device includes processing circuitry and multiple ports. The multiple ports are configured to connect to a communication network. The processing circuitry is configured to select a first port among the multiple ports to serve as an egress port for a packet, and to forward the packet to the first port, irrespective of whether or not the first port is usable as the egress port. The processing circuitry is further configured to, when the first port is usable as the egress port, transmit the packet to the communication network via the first port, and when the first port is unusable as the egress port, forward the packet from the first port to a second port among the multiple ports and transmit the packet to the communication network via the second port.

公开(公告)号：US11102146B2

公开(公告)日：2021-08-24

申请号：US16706892

申请日：2019-12-09

Applicant: MELLANOX TECHNOLOGIES TLV LTD.

Inventor： Zachy Haramaty ,  Aviv Kfir ,  Ilya Vershkov ,  Barak Gafni

IPC: H04L12/927 ,  H04L12/46 ,  H04L29/06 ,  H04L29/12 ,  H04L12/911

Abstract: One embodiment includes a network device including multiple interfaces to serve as ingress ports for receiving network packets from nodes in remote customer-site network(s) via a tunnel in a provider network, and from nodes in a local customer-site network, and egress ports for forwarding at least some of the network packets, and control circuitry to make a decision to drop a network packet to reduce packet duplication in at least one of the nodes, responsively to the network packet being identified as a packet of broadcast, unknown unicast, or multicast traffic, the network packet being subject to decapsulation of an encapsulation header, being assigned to one of the egress ports, and having a header including one of a plurality of virtual local area network identifications, or one of a plurality of source identifications.

公开(公告)号：US20210021503A1

公开(公告)日：2021-01-21

申请号：US16515060

申请日：2019-07-18

Applicant: Mellanox Technologies TLV Ltd.

Inventor： Aviv Kfir ,  Barak Gafni ,  Zachy Haramaty ,  Gil Levy ,  Liron Mula ,  Jacob Ruthstein ,  Michael Taher

IPC: H04L12/26

Abstract: In one embodiment a network device includes multiple interfaces including at least one egress interface, which is configured to transmit packets belonging to multiple flows to a packet data network, control circuitry configured to generate event-reporting data-items, each including flow and event-type information about a packet-related event occurring in the network device, a memory, and aggregation circuitry configured to aggregate data of at least some of the event-reporting data-items into aggregated-event-reporting data-items aggregated according to the flow and event-type information of the at least some event-reporting data-items, store the aggregated-event-reporting data-items in the memory, and forward one aggregated-event-reporting data-item of the aggregated-event-reporting data-items to a collector node, and purge the one aggregated-event-reporting dam-item from the memory.

公开(公告)号：US20210006513A1

公开(公告)日：2021-01-07

申请号：US16459651

申请日：2019-07-02

Applicant: Mellanox Technologies TLV Ltd.

Inventor： Barak Gafni ,  Aviv Kfir ,  Benny Koren

IPC: H04L12/861 ,  H04L12/863 ,  H04L12/927

Abstract: One embodiment includes a communication apparatus, including multiple interfaces including at least one egress interface to transmit packets belonging to multiple flows to a network, and control circuitry to queue packets belonging to the flows in respective flow-specific queues for transmission via a given egress interface, and to arbitrate among the flow-specific queues so as to select packets for transmission responsively to dynamically changing priorities that are assigned such that all packets in a first flow-specific queue, which is assigned a highest priority among the queues, are transmitted through the given egress interface until the first flow-specific queue is empty, after which the control circuitry assigns the highest priority to a second flow-specific queue, such that all packets in the second flow-specific queue are transmitted through the given egress interface until the second flow-specific queue is empty, after which the control circuitry assigns the highest priority to another flow-specific queue.

公开(公告)号：US10387074B2

公开(公告)日：2019-08-20

申请号：US15161316

申请日：2016-05-23

Applicant: Mellanox Technologies TLV Ltd.

Inventor： Roy Kriss ,  Barak Gafni ,  George Elias ,  Eran Rubinstein ,  Shachar Bar Tikva

IPC: H04L12/933 ,  G06F3/06 ,  H04L12/935 ,  H04L12/861

Abstract: Communication apparatus includes multiple ports configured to serve as ingress ports and egress ports for connection to a packet data network. A memory is coupled to the ports and configured to contain both respective input buffers allocated to the ingress ports and a shared buffer holding data packets for transmission in multiple queues via the egress ports. Control logic is configured to monitor an overall occupancy level of the memory, and when a data packet is received through an ingress port having an input buffer that is fully occupied while the overall occupancy level of the memory is below a specified maximum, to allocate additional space in the memory to the input buffer and to accept the received data packet into the additional space.

公开(公告)号：US20190182366A1

公开(公告)日：2019-06-13

申请号：US15836986

申请日：2017-12-11

Applicant: Mellanox Technologies TLV Ltd.

Inventor： Aviv Kfir ,  Barak Gafni ,  Avner Hadash ,  Ortal Ben Moshe

IPC: H04L29/06

CPC classification number: H04L69/22

Abstract: Communication apparatus includes multiple interfaces configured to be connected to a network so as to receive and transmit data packets having respective packet headers, which can include sub-headers of different, respective types. A memory stores instructions for parsing each type of sub-headers and a transition table, which indicates, for each of the types, a location of the instructions for parsing a subsequent sub-header depending upon the type of the subsequent sub-header. A plurality of predefined types are represented in the transition table by a common alias. Routing logic parses the first sub-header in a packet, reads the type of the second sub-header from the first sub-header, and accesses the transition table using the common alias in place of the type of the first sub-header so as to locate and read the instructions for parsing the second sub-header.

公开(公告)号：US20190097929A1

公开(公告)日：2019-03-28

申请号：US15713776

申请日：2017-09-25

Applicant: Mellanox Technologies TLV Ltd.

Inventor： Barak Gafni ,  Matty Kadosh ,  Aviv Kfir

IPC: H04L12/743 ,  H04L12/46 ,  H04L12/713 ,  H04L12/741

CPC classification number: H04L45/7453 ,  H04L12/4645 ,  H04L45/54 ,  H04L45/586

Abstract: Communication apparatus includes a plurality of interfaces and routing logic coupled between the interfaces. The routing logic includes a parser, which extracts header data from selected fields of each data packet received from the network through an ingress interface. At least one hash calculator computes a hash over a first set of the header data extracted by the parser from each received data packet. A virtual routing and forwarding (VRF) instance selector selects a VRF instance for each received data packet responsively to both an ingress indicator associated with the received data packet and a second set of the header data extracted by the parser from the received data packet. A lookup engine selects an egress interface responsively to the selected VRF instance and the computed hash. Forwarding and switching logic forwards the data packet to the selected egress interface for transmission to the network.

公开(公告)号：US10015112B2

公开(公告)日：2018-07-03

申请号：US14961923

申请日：2015-12-08

Applicant: Mellanox Technologies TLV Ltd.

Inventor： Amir Roitshtein ,  Niv Aibester ,  Barak Gafni ,  George Elias

IPC: H04L12/931 ,  H04L12/861 ,  H04L12/741

CPC classification number: H04L49/201 ,  H04L45/745 ,  H04L49/205 ,  H04L49/9005

Abstract: Communication apparatus includes multiple interfaces connected to a packet data network. A memory is coupled to the interfaces and configured as a buffer to contain packets received through ingress interfaces while awaiting transmission to the network via respective egress interfaces. Packet processing logic is configured, upon receipt of a multicast packet through an ingress interface, to identify a number of the egress interfaces through which respective copies of the multicast packet are to be transmitted, to allocate a space in the buffer for storage of a single copy of the multicast packet, to replicate and transmit multiple copies of the stored copy of the multicast packet through the egress interfaces, to maintain a count of the replicated copies that have been transmitted, and when the count reaches the identified number, to release the allocated space in the buffer.

公开(公告)号：US20180152372A1

公开(公告)日：2018-05-31

申请号：US15641240

申请日：2017-07-04

Applicant: MELLANOX TECHNOLOGIES TLV LTD.

Inventor： Zachy Haramaty ,  Liron Mula ,  George Elias ,  Aviv Kfir ,  Barak Gafni ,  Gil Levy ,  Benny Koren ,  Itamar Rabenstein ,  Maty Golovaty

IPC: H04L12/26 ,  H04L12/18 ,  H04L12/939

CPC classification number: H04L43/50 ,  H04L12/1877 ,  H04L12/1886 ,  H04L49/55 ,  H04Q11/0478

Abstract: A method for packet generation includes designating a group of one or more ports, from among multiple ports of one or more network elements, to perform the packet generation. A circular packet path, which traverses one or more buffers of the ports in the group, is configured. A burst of one or more packets is provided to the group, so as to cause the burst of packets to repeatedly traverse the circular packet path. A packet stream, including the repeated burst of packets, is transmitted from one of the ports.