Abstract: Methods and systems for stateless address translation in multi-tenant cloud environments are provided. Network traffic is received from a first tenant of a multi-tenant system. The received network traffic is associated with first source and destination host addresses of a first host allocated to the first tenant and a first destination host associated with the network traffic. The first source and destination host addresses are provided as an input to a bi-directional address translation function that translates given host addresses to networking addresses and converts given host addresses to networking addresses and given networking addresses to host addresses. One or more outputs of the bi-directional address translation function are obtained, which include a first source networking address and a first destination networking address.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: Device, system, and method of distributing messages. For example, a data publisher capable of communication with a plurality of subscribers via a network fabric, the data publisher comprising: a memory allocator to allocate a memory area of a local memory unit of the data publisher to be accessible for Remote Direct Memory Access (RDMA) read operations by one or more of the subscribers; and a publisher application to create a message log in said memory area, to send a message to one or more of the subscribers using a multicast transport protocol, and to store in said memory area a copy of said message. A subscriber device handles recovery of lost messages by directly reading the lost messages from the message log of the data publisher using RDMA read operation(s).

Abstract: Device, system, and method of distributing messages. For example, a data publisher capable of communication with a plurality of subscribers via a network fabric, the data publisher comprising: a memory allocator to allocate a memory area of a local memory unit of the data publisher to be accessible for Remote Direct Memory Access (RDMA) read operations by one or more of the subscribers; and a publisher application to create a message log in said memory area, to send a message to one or more of the subscribers using a multicast transport protocol, and to store in said memory area a copy of said message. A subscriber device handles recovery of lost messages by directly reading the lost messages from the message log of the data publisher using RDMA read operation(s).

Abstract: Device, system, and method of distributing messages. For example, a data publisher capable of communication with a plurality of subscribers via a network fabric, the data publisher comprising: a memory allocator to allocate a memory area of a local memory unit of the data publisher to be accessible for Remote Direct Memory Access (RDMA) read operations by one or more of the subscribers; and a publisher application to create a message log in said memory area, to send a message to one or more of the subscribers using a multicast transport protocol, and to store in said memory area a copy of said message. A subscriber device handles recovery of lost messages by directly reading the lost messages from the message log of the data publisher using RDMA read operation(s).

Abstract: Device, system and method of multicast communication. For example, an apparatus in accordance with an embodiment of the invention includes a non-kernel multicast protocol handler adapted to perform a multicast operation of a user mode application by bypassing the operating system kernel and directly accessing a communication adapter having an operating system bypass capability.

Abstract: Device, system and method of multicast communication. For example, an apparatus in accordance with an embodiment of the invention includes a non-kernel multicast protocol handler adapted to perform a multicast operation of a user mode application by bypassing the operating system kernel and directly accessing a communication adapter having an operating system bypass capability.

Abstract: Device, system and method of UDP communication. For example, an apparatus in accordance with an embodiment of the invention includes a non-kernel UDP protocol handler adapted to perform a UDP operation of a user mode application by bypassing the operating system kernel and directly accessing a communication adapter having an operating system bypass capability.

Abstract: Device, system, and method of publishing information to multiple subscribers. For example, a data publisher capable of communication with one or more subscribers includes: a memory allocator to allocate a memory area of a local memory unit of the data publisher for storing data to be accessible for Remote Direct Memory Access (RDMA) read operations by one or more of said subscribers.

Abstract: Device, system, and method of distributing messages. For example, a data publisher capable of communication with a plurality of subscribers via a network fabric, the data publisher comprising: a memory allocator to allocate a memory area of a local memory unit of the data publisher to be accessible for Remote Direct Memory Access (RDMA) read operations by one or more of the subscribers; and a publisher application to create a message log in said memory area, to send a message to one or more of the subscribers using a multicast transport protocol, and to store in said memory area a copy of said message. A subscriber device handles recovery of lost messages by directly reading the lost messages from the message log of the data publisher using RDMA read operation(s).

Abstract: Device, system, and method of publishing information to multiple subscribers. For example, a data publisher capable of communication with one or more subscribers includes: a memory allocator to allocate a memory area of a local memory unit of the data publisher for storing data to be accessible for Remote Direct Memory Access (RDMA) read operations by one or more of said subscribers.

Abstract: Device, system and method of multicast communication. For example, an apparatus in accordance with an embodiment of the invention includes a non-kernel multicast protocol handler adapted to perform a multicast operation of a user mode application by bypassing the operating system kernel and directly accessing a communication adapter having an operating system bypass capability.

Abstract: Device, system and method of UDP communication. For example, an apparatus in accordance with an embodiment of the invention includes a non-kernel UDP protocol handler adapted to perform a UDP operation of a user mode application by bypassing the operating system kernel and directly accessing a communication adapter having an operating system bypass capability.