Emulex Design & Manufacturing Corporation

Avago Technologies General IP (singapore) Pte. Ltd.

Mukund T Chavan

Chaitanya Tumuluri

Parag Bhide

Ravindra Sadanand Shenoy

Sriram Rupanagunta

A rate limiter incorporated in a server connected to a network. The rate limiter is adapted to reduce congestion in the network in response to a congestion notification message. The server is adapted to send packets over the network. The rate limiter includes at least one of: a server rate limiter engine adapted to rate limit the packets in response to the server; a virtual machine rate limiter engine adapted to rate limit the packets in response to a virtual machine associated with the packets, the virtual machine hosted by the server; a flow rate limiter engine adapted to rate limit the packets in response to a flow associated with the packets; the flow being one of a plurality of flows transporting packets over the network; and a transmit engine adapted to rate limit the packets in response to a virtual pipe of the network for transmitting the packets.

Method and system for controlling traffic over a computer network

A hardware switch for use with hypervisors and blade servers is disclosed. The hardware switch enables switching to occur between different guest OSs running in the same server, or between different servers in a multi-root IOV system, or between different guest OSs running in the same server in single-root IOV systems. Whether embedded in a host bus adapter (HBA), converged network adapter (CNA), network interface card (NIC) or other similar device, the hardware switch can provide fast switching with access to and sharing of at least one external network port such as a Fibre Channel (FC) port, 10 Gigabit Ethernet (10 GbE) port, FC over Ethernet (FCoE) port, or other similar port. The hardware switch can be utilized when no hypervisor is present or when one or more servers have hypervisors, because it allows for switching (e.g. Ethernet switching) between the OSs on a single hypervisor.

Hardware switch for hypervisors and blade servers

An intelligent network processor is disclosed that provides a PCI express (PCIe) host bus adapter with firmware selectable hardware capabilities and firmware enabled emulation of capabilities not supported by hardware. Support for Fibre Channel (FC) and Gigabit Ethernet (GbE) protocols are provided through the same fabric ports, including multiple port trunking for both protocols. On chip protocol conversion is provided for switching and routing between FC and GbE ports. Switching using the same crossbar module is provided for both FC and GbE protocols. The crossbar module is coupled to directly access external DDR memory so that messages from FC, GbE, and PCIe interfaces may be switched directly to the DDR memory.

Growing community of inventors

Costa Mesa, CA, United States of America

Mukund T Chavan