Host Network Accelerators for Data Center Overlay Networks

A host network and accelerator technology, applied in the field of computer networks, can solve problems such as high cost, non-determinism, loss, etc.

A host network and accelerator technology, applied in the field of computer networks, can solve problems such as high cost, non-determinism, loss, etc.

CN104954247BActive Publication Date: 2018-05-01JUMIPER NETWORKS INC
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  • Host Network Accelerators for Data Center Overlay Networks
  • Host Network Accelerators for Data Center Overlay Networks
  • Host Network Accelerators for Data Center Overlay Networks

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0151] Example 1. A host network accelerator comprising: a physical network interface for connecting to a switch fabric comprising a plurality of switches providing connectionless, packet-based switching for packets over the physical network; input / output (I / O) bus interface for connecting to an I / O bus of a server providing an operating environment for executing one or more virtual machines associated with one or more virtual networks; and a hardware-based virtual router, located on a data path between the physical network interface and the I / O bus interface, the virtual router configured to apply routing information of the virtual network to the virtual A packet is routed between a virtual machine and a virtual machine executing on one or more remote servers coupled to the physical network.

example 2

[0152] Example 2. The host network accelerator of example 1, wherein the I / O bus interface includes memory for storing outgoing packets written directly by the virtual machine.

example 3

[0153] Example 3. The host network accelerator of example 1, wherein the I / O bus interface comprises a PCIe interface configured to connect to a Peripheral Component Interconnect Express (PCIe) bus of a respective one of the servers.

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Abstract

Embodiments of the present invention relate to a host network accelerator for a data center overlay network. Describe a high-performance, scalable, and call-drop-free data center switching fabric and infrastructure. Data center switching fabrics can utilize low-cost, off-the-shelf packet-based switching components such as IP over Ethernet (IPoE) and overlay forwarding technologies rather than proprietary switching fabrics. In one example, a host network accelerator (HNA) is positioned between servers (eg, virtual machines or dedicated servers) in a data center and an IPoE core network that provides point-to-point connectivity between the servers. The HNA is a hardware device that embeds a virtual router on one or more integrated circuits, where the virtual router is configured to extend one or more virtual networks to virtual machines and use an overlay network to seamlessly transfer packets through a switch fabric. In other words, the HNA provides a seamless hardware-based interface to the overlay technology used to communicate packet flows through the data center's core switching network.

Description

[0001] Cross References to Applications [0002] This application claims the benefit of U.S. Provisional Application No. 61 / 973,045, filed March 31, 2014, the entire contents of which are hereby incorporated by reference. technical field [0003] The present invention relates to computer networks, and more particularly to data centers providing virtual networks. Background technique [0004] In a typical cloud-based data center, a large collection of interconnected servers provides computing and / or storage capacity for executing various applications. For example, a data center may include a facility that hosts applications and services for subscribers, such as customers of the data center. A data center may, for example, host all infrastructure equipment, such as networking and storage systems, redundant power supplies, and environmental controls. In most data centers, clusters of storage systems and application servers are interconnected via a high-speed switching fabric...

Claims

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Application Information

Patent Timeline
01 May 2018
Publication
CN104954247B
IPC
H04L12/701; H04L12/863
CPC
H04L49/70; H04L12/4633; G06F13/385; H04L12/4641; H04L47/12; H04L47/50
Inventors
P·辛胡