Abstract: A communication apparatus includes input circuitry, an encapsulator, transmission circuitry and flow control circuitry. The input circuitry is to receive packets from a data source in accordance with a first communication protocol that employs credit-based flow control. The encapsulator is to buffer the packets in a memory buffer and to encapsulate the buffered packets in accordance with a second communication protocol. The transmission circuitry is to transmit the encapsulated packets over a communication link in accordance with the second communication protocol. The flow control circuitry is to receive from the encapsulator buffer status indications that are indicative of a fill level of the memory buffer, and to exchange credit messages with the data source, in accordance with the credit-based flow control of the first communication protocol, responsively to the buffer status indications.

Abstract: A network adapter includes a host interface, a network interface, a packet processor, and a telemetry handler. The host interface is to communicate with a host. The network interface is to send packets to a network. The packet processor is to process the packets prior to sending the packets to the network. The telemetry handler is to receive from the host, over the host interface, an indication specifying a flow or application, to mark one or more packets associated with the flow or application with a specified identifier in response to the indication, and to send the marked packets using the packet processor to the network via the network interface.

Abstract: A network device includes processing circuitry and one or more ports. The one or more ports are configured to connect to a communication network. The processing circuitry is configured to receive a packet originating from a network node running an application program, the packet includes application-level metadata relating to the application program, to generate telemetry data based at least on the application-level metadata, and to transmit the telemetry data via one of the ports, over the communication network.