Open vSwitch with DPDKMark Gray

Current Release of Open Vswitch (OVS)

Open vSwitch (OvS)

• Open-source community project offered under the Apache 2.0 license

• OvS Rel 2.6.0 available for download (Sept 28th 2016)

• Available at www.openvswitch.org

• OvS-DPDK available through:

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Data Plane Development Kit (DPDK) Architecture

*Other brands and names are the property of their respective owners

DPDK Sample Applications

Linux Kernel

User Space

KNI IGB_UIO

Customer Applications ISV Eco-System Applications

EAL

MALLOC

MBUF

MEMPOOL

RING

TIMER

Core Libraries

KNI

POWER

IVSHMEM

Platform

LPM

EXACT MATCH

ACL

Classify

E1000

IXGBE

VMXNET3

IGB

I40e

VIRTIO

Packet Access(PMD – Native & Virtual)

ETHDEV

XENVIRT

PCAP

Mellanox*

PacketFrmWork

DISTRIB

Extensions

Cisco VIC* METER

SCHED

QoS

Libraries for network application development on Intel Platforms Speeds up networking functions

Enables user space application developmentFacilitates both run-to-completion and pipeline models

Multiple CPU architectures supported (on dpdk.org)Intel x86_64, ia32, targeting Intel® Xeon® to Intel®

Atom™Power 7/8 (Added by DPDK community members)

Tilera TlleGx (Added by DPDK community members)Multiple vendor NICs supported open source

Intel Mellanox, Cisco (Added by DPDK community members)

Kernel Space

User Space Main forwarding plane runs in kernel space

Exception packets are sent to vswitchdin userspace using Netlink

Standard Linux network interfaces to communicate with physical network

NATIVE Open vSwitch – architecture

ovs-vswitchd

OVS Kernel Space Forwarding Plane

(openvswitch.ko)

NIC NICNIC

Netlink

ovs-vswitchd

OVS Kernel Space Forwarding Plane

NIC NICNIC

Netlink

DPDK

PMD Driver

User Space

User Space

Kernel Space

Kernel Space

PMD Driver

PMD Driver

acePMD

Driver

User Space

Kernel Space

PMD Driver

PMD Driver

OVS User Space Forwarding Plane

OVS with DPDK

ovs-vswitchd

Integrate DPDK library into OVS• Main forwarding plane runs in userspace as

separate threads of vswitchd

• DPDK PMD to communicate with physical network

• Achieve near native performance when using shared memory

• Available as a compile time option for standard OVS

NIC NICNIC

DPDK

Native OVS

NIC NICNIC

Open vSwitch With DPDK – architecture

Control Path

Open vSwitch (OVS) With DPDK ARCHITECTURE

ovs-vswitchd

dpif-netdev (User Space Forwarding)

Compute Node:User Space

Controllerovsdb OpenFlow

ovsdb server

ofproto

Compute Node:Hardware

VNF

Virtio

Qemu

VNF

Ivshmem

DPDK

Qemunetd

ev

Data Path

Control Path

netdev-dpdk

DPDKlibrte_ring

DPDKlibrte_vhost

DPDKlibrte_eth

Open vSwitch with DPDK Packet Flow

Open vSwitch With DPDK – Performance

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Open vSwitch With DPDK – Performance

Disclaimer: Software and workloads used in performance tests may have been optimized for performance only on Intel microprocessors. Performance tests, such as SYSmark and MobileMark, are measured using specific computer systems, components, software, operations and functions. Any change to any of those factors may cause the results to vary. You should consult other information and performance tests to assist you in fully

evaluating your contemplated purchases, including the performance of that product when combined with other products. E5-2658 (2.1GHz, 8C/16T) DP; PCH: Patsburg; LLC: 20MB; 16 x 10GbE Gen2 x8; 4 memory channels per socket @ 1600MT/s, 8 memory channels total; DPDK 1.3.0-154 E5-2658v2 (2.4GHz, 10C/20T) DP; PCH: Patsburg; LLC: 20MB; 22 x 10GbE Gen2 x8; 4 memory channels per socket @ 1867MT/s, 8

memory channels total; DPDK 1.4.0-22 *Projection data on 2 sockets extrapolated from 1S run on Wildcat Pass system with E5-2699 v3.

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• Virtual Switches provide network connectivity for virtual machines in the datacentre. NFV has imposed increased performance requirements on the virtual switch.

• Open vSwitch is an open source virtual switch that uses DPDK software acceleration in order to increase the performance for NFV use cases.

SUMMARY