Mellanox Technologies, Ltd.

Mellanox Technologies Tlv Ltd.

Dror Goldenberg

Michael Kagan

Diego Crupnicoff

Liran Liss

Benny Koren

Idan Burstein

Michael Tsirkin

Yuval Itkin

Hillel Chapman

Aviad Shaul Yehezkel

Eitan Zahavi

Peter Paneah

Ori Rottenstreich

Ron Yuval Efraim

Noam Bloch

Barak Gafni

Gil Bloch

Daniel Marcovitch

Matty Kadosh

Ariel Shachar

Yamin Friedman

Shachar Raindel

Rabia Loulou

Tzah Oved

Alexander Eli Rosenbaum

Gil Levy

Gil Stoler

Shlomo Raikin

Itamar Rabenstein

Yaron Haviv

Ariel Almog

Boris Pismenny

Ido Bukspan

Oded Wertheim

Alex Shpiner

Oren Duer

Ophir Turbovich

Gilad Shainer

Dror Bohrer

Aviad Raveh

Doron Fael

Ilya Vershkov

Achiad Shochat

Tal Anker

Ali Ayoub

Yaniv Saar

Marina Lipshteyn

Tamir Azarzar

Gil Adar

Dror Borer

Eyal Rond

Tomer Ben-David

Apparatus for data communication includes a network interface for connection to a packet data network and a host interface for connection to a host computer, which includes a central processing unit (CPU) and a host memory. Packet processing circuitry receives, via the host interface, from a kernel running on the CPU, associations between multiple remote direct memory access (RDMA) sessions and multiple different User Datagram Protocol (UDP) 5-tuple, which are assigned respectively to the RDMA sessions, and receives from an application running on the CPU a request to send an RDMA message, using a selected group of one or more of the RDMA sessions, to a peer application over the packet data network, and in response to the request, transmits, via the network interface, one or more data packets using a UDP 5-tuple that is assigned to one of the RDMA sessions in the selected group.

Session-based remote direct memory access

A cross-network bridging apparatus includes a bus interface and bridging circuitry. The bus interface is configured for connecting to a system bus. The bridging circuitry is configured to translate between (i) system-bus transactions that are exchanged between one or more local devices that are coupled to the system bus and served by the system bus and one or more remote processors located across a network from the apparatus, and (ii) data units that convey the system-bus transactions, for transmitting and receiving as network packets over the network to and from the remote processors.

Cross network bridging

A peripheral device includes a host interface and processing circuitry. The host interface is to communicate with one or more hosts over a peripheral bus. The processing circuitry is to expose on the peripheral bus a peripheral-bus device that communicates with the one or more hosts using one or more instances of at least one bus storage protocol, to receive, using the exposed peripheral-bus device, Input/Output (I/O) transactions that are issued by the one or more hosts, and to complete the I/O transactions for the one or more hosts in accordance with one or more instances of at least one network storage protocol, by running at least part of a host-side protocol stack of the at least one network storage protocol.

Enhanced storage protocol emulation in a peripheral device

A network interface apparatus includes a host interface for connection to a host processor and a network interface, which includes multiple distinct physical ports. Processing circuitry associates each of a plurality of virtual entities running on the host processor with a respective one of the physical ports, so that while both of the first and second physical ports are operational, the processing circuitry transmits data packets on behalf of first and second virtual entities, using assigned upper-layer addresses, through associated first and second physical ports. In response to an indication that the first physical port has ceased to operate, the processing circuitry transmits the data packets on behalf of the first virtual entity through the second physical port without changing the upper-layer addresses.

Transparent failover in a network interface controller

Computerized methods and systems are disclosed for configuring a network controller (NC). These methods and systems recognize, via a network device, e.g., hardware, software, processors, storage media, memory, a predetermined command from a management controller (MC). The network device responds to the predetermined command by configuring the NC with a message type associated with an event, and controlling enablement of a message associated with the message type using a selectable enable bit as defined in the predetermined command.

Configurable AEN notification

A network connection device having a security processor exchanges data traffic between a data network and a host computer via a network port. Security management data is exchanged exclusively between the security processor and a management network via a management network connectivity port that is inaccessible to the data traffic.

Utilizing management network for secured configuration and platform management

A network adapter includes one or more ports and circuitry. The ports are configured to connect to a switch in a communication network. The circuitry is coupled to a network node that includes multiple hosts, and is configured to exchange management packets between a control server and multiple BMC units associated respectively with the multiple hosts, and to exchange, over the communication network via the one or more ports, data packets between the hosts and one or more remote nodes.

Multi-host network interface controller with host management

Communication apparatus includes a plurality of interfaces configured to be connected to a Layer-3 packet network and to serve as ingress and egress interfaces to receive and transmit packets from and to the network. Routing logic is coupled to process respective Layer-3 headers of the packets received through the ingress interfaces and to route the packets via the egress interfaces to respective destinations indicated by the Layer-3 headers. Congestion detection logic is coupled to identify a flow of the received packets that is causing congestion in the network and a Layer-3 address from which the flow originates, and to direct the routing logic to route a backward congestion notification message (CNM) packet via one of the egress interfaces to the identified Layer-3 address.

Backward congestion notification in layer-3 networks

A method for designing a Network Function Virtualization (NFV) architecture includes accepting a definition of multiple Virtual Network Functions (VNFs), and of one or more packet types having respective occurrence probabilities, wherein each packet type is associated with a respective subset of the VNFs that are to be applied to packets of that packet type. Information on multiple available physical computers, each capable of running only a partial subset of the multiple VNFs, is further accepted. The VNFs are allocated to the physical computers by applying an optimality criterion to definition and the information.

Time-efficient network function virtualization architecture

A method in a network node that includes a network adapter, a Baseboard Management Controller (BMC) and a host, includes connecting to a switch in a communication network using first and second ports of the network adapter, as member ports of a Link Aggregation Group (LAG). Management and data packets are simultaneously exchanged over the communication network via the LAG member ports, so that the management packets are exchanged between the BMC and a control server, and the data packets between the host and a remote node.

Simultaneous operation of remote management and link aggregation

A method in a network element that includes multiple interfaces for connecting to a communication network includes receiving from the communication network via an ingress interface a flow including a sequence of packets, and routing the packets to a destination of the flow via a first egress interface. A permission indication for re-routing the flow is received in the ingress interface. In response to receiving the permission indication, subsequent packets of the flow are re-routed via a second egress interface that is different from the first egress interface. Further re-routing of the flow is refrained from, until receiving another permission indication.

Adaptive routing controlled by source node

Lock access is managed in a data network having an initiator node and a remote target by issuing a lock command from a first process to the remote target via an initiator network interface controller to establish a lock on a memory location, and prior to receiving a reply to the lock command communicating a data access request to the memory location from the initiator network interface controller. Prior to receiving a reply to the data access request, an unlock command issues from the initiator network interface controller. The target network interface controller determines the lock content, and when permitted by the lock accesses the memory location. After accessing the memory location the target network interface controller executes the unlock command. When the lock prevents data access, the lock operation is retried a configurable number of times until data access is allowed or a threshold is exceeded.

Accelerating and offloading lock access over a network

A method for communication in a packet data network that includes at least first and second subnets interconnected by multiple routers and having respective first and second subnet managers. The method includes assigning respective local identifiers to ports for addressing of data link traffic within each subnet, such that the first subnet manager assigns the local identifiers in the first subnet, and the second subnet manager assigns the local identifiers in the second subnet. The routers are configured by transmitting and receiving control traffic between the subnet managers and the routers. Data packets are transmitted between network nodes in the first and second subnets via one or more of the configured routers under control of the subnet managers.

Routing controlled by subnet managers

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Zichron Yaakov, Israel

Dror Goldenberg