lagopus: sdn software switch - events |...

Copyright©2014 NTT corp. All Rights Reserved.

Lagopus: SDN Software Switch

April 2015

NTT Network Innovation Laboratories

Hirokazu Takahashi

1 Copyright©2014 NTT corp. All Rights Reserved.

What’s Lagopus?

A software implementation of OpenFlow switch

Can be run on commodity x86 servers and Linux

High performance

> 10Gbps wire-rate packet processing

Almost fully conforms to OpenFlow 1.3.4 spec.

Open source

http://lagopus.github.io/

OpenFlow controller

Control plane

OpenFlow protocol

OpenFlow switch

Data plane

Flow Table

Flow pattern Flow pattern

Flow pattern Flow pattern Flow pattern

Flow pattern

Flow Table

#2

Flow Table

#3

Flow Table

#4


Agenda

Motivation and Target

Basic Design and Evaluation

Current Development

Community Activities


Motivation

Agile and flexible networking Full automation in provisioning, operation and management

Seamless networking for customers

Server virtualization and NFV needs a high-performance software switch Small latency

Wire-rate with short packet (64B)

NO high-performance OpenFlow 1.3 software switch for wide-area networks 1M flow rules

10Gbps-wire-rate

Management protocol


Target of Lagopus

High performance software-based OpenFlow switch 10Gbps wire-rate packet processing 1M flow rules

Expands the application to wide-area networks Not only for data centers WAN protocols, e.g. MPLS and PBB Various management/configuration interfaces

Open Innovation Already released as OSS, http://lagopus.github.io/


Agenda



Current Development



Design

Switch agent and data plane component Connected via event queue

Supports multiple data plane implementations

Switch agent Modular architecture

Easy to add configuration and management protocols

Software data plane User space implementation

using Intel DPDK

Easy deployment

OpenFlow controller

OpenFlow 1.3


Software data plane implementation

OpenFlow data plane processing Reducing data copy, packet batching, polling, ...

Exploit many core CPUs Pipelining: dividing I/O and packet processing Parallelizing each processing

Improves performance and reduces I/O overhead

NIC 1 RX

NIC 2 RX

I/O RX CPU0

I/O RX CPU1

NIC 1 TX

NIC 2 TX

I/O TX CPU6

I/O TX CPU7

Flow lookup packet processing

CPU2


CPU4


CPU3


CPU5

NIC 3 RX

NIC 4 RX

NIC 3 TX

NIC 4 TX

NIC RX buffer

Ring buffer

Ring buffer NIC TX buffer


Functional evaluation example

Conformance test results by Ryu Certification http://osrg.github.io/ryu/certification.html

OpenFlow Switch Action (56) Set Field (170) Match (714) Group (15) Meter (36) Total (991)

Switch A 34 90 467 8 0 599

Switch B 34 96 534 6 0 670

Switch C 50 103 599 15 26 793

Switch D 24 68 428 3 4 527

Switch E 50 159 708 15 34 966

Lagopus 56 161 714 15 34 980


Performance evaluation example WAN-DC Gateway, throughput vs packet size, 1 flow, flow-cache

0

1

2

3

4

5

6

7

8

9

10

0 200 400 600 800 1000 1200 1400 1600

Throughput(Gbps)

Packetsize(byte)

10flowrules

100flowrules

1kflowrules

10kflowrules

100kflowrules

1Mflowrules


Performance evaluation example WAN-DC Gateway, throughput vs flows, 1518 bytes packet

0

1

2

3

4

5

6

7

8

9

10

1 10 100 1000 10000 100000 1000000

Throughput(Gbps)

flows

10kflowrules

100kflowrules

1Mflowrules


Agenda



Current Development



Virtual NIC

VM to VM and VM to physical NW forwarding Reducing data copy and context switching between VM and Lagopus

Has been released as OpenSouce

Will be merged to Intel DPDK 2.0.0

Guest1

QEMU

App

DPDK

Guest2

QEMU

App

DPDK

Vir o-netPMD Vir o-netPMD

Lagopusvswitch

DPDK

PMD

MapmemoryinguestVMtolagopusmemory

MapmemoryinguestVMtolagopusmemory

vir o vir o

viro

queu

e

viro

queu

e

PMDvNIC

PMDvNIC


Management data store

Common data store connected to multiple management I/F Switch setting data store includes

NIC, bridge, controller, logs, ...

Multiple namespaces, atomic region (transaction), rollback, ...

Will be released in 2Q 2015


What’s next?

Agent

OpenFlow 1.5

Openconfig

Data-plane

40Gbps wire-rate

Whitebox switch


Agenda



Current Development



Open Source

Released on Jul. 2014

http://lagopus.github.io/


Promotion (last 12 months)

5/13 NV Symposium (Japan) 5/21 ONDM (Sweden) 5/22 IPOP2014 (Japan) 5/30 NV&SDN World (UK) 6/6 Press release 6/11-13 Interop Tokyo 2014 (Japan) 6/27 PIF (Japan) 7/30 NWGN Symposium (Japan) 7/31 NV Symposium (Japan) 7/31 Open source release 8/1 OCS summer school (Japan) 8/4-6 Lagopus Hands-on (Taiwan) 8/30 Lagopus Day Tokyo (Japan) 9/8 DPDK Summit (USA) 9/19 Cloud & SDN Seminar (Japan) 9/27 Lagopus Day Yokohama (Japan) 10/3 CIAJ (Japan) 10/7 ICT innovation forum (Japan) 10/14 SDN & OpenFlow World Congress (Germany) 10/22 Broadband World Forum (Netherland) 10/31 SDN Japan (Japan) 11/3-5 SDN/MPLS 2014 (USA) 11/12-14 SDN Taiwan & Lagpus Hands-on (Taiwan) 11/18 Internet Week 2014 (Japan) 11/27-28 Docomo R&D Open House (Japan) 12/11-12 Okinawa OpenDays (Japan) 12/19 Lagopus Day Osaka (Japan) 12/22 Nikkei Electronics Magazine (Japan) 2/1 Nikkei Communication Magazine (Japan) 2/19-20 NTT R&D Forum (Japan) 2/27-28 Open Source Conference (Japan) 3/2-6 APRICOT-APAN 2015 (Japan) 3/16-17 NV workshop 3/31-4/2 Internet 2 workshop (USA)

Lagopus Day Tokyo

Interop Tokyo 2014

Hands-on in Taiwan

Open Source Conference (Japan)


Demonstration experiment in SDN Japan

Location-aware bandwidth control for conference Wifi

Good audience, good connection

Front area, good connection

Back area, poor connection ■ A Pの識別(V LA N )

■ V ID毎にQoS制御

ＰｏＥスイッチ

インターネット

アクセスポイント( ＡＰ)

La g op u sの役割

アクセスポイント Access points

Fro

nt

Bac

k


Related business

Stratosphere Inc.

Press release for Lagopus professional support

Riava Inc.

Sells Lagopus-inside box


Thank you for your attention

This research is a part of the project for “Research and Development of Network Virtualization Technology” supported by the Ministry of Internal Affairs and Communications.

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