SDN Basics – What You Need to Know about Software-Defined Networking

SDN University™ 101What You Need to Know About SDN

Copyright 2013. All Rights Reserved.

Meet our speakers

2Copyright 2013. All Rights Reserved.

Roy Chua Matt GriffithsMatthew Palmer

SDNCentral SDNCentral COMPUTERLINKS

• What is SDN» History of SDN and OpenFlow

• What can you do with SDN – Use Cases• SDN Ecosystem

» SDN Players» SDN Open Source Projects» SDN Products

• How to Get Started» What to do in 2013» Where to Learn More

What you should take away from our session


About COMPUTERLINKS


• Founded 1984 Munich Germany

• Focus on key vendors and technologies

• True value added distributer

• Global and local market access

• Enterprise Security focused

• 600+ employees world wide

• Global 24/7 support center

The COMPUTERLINKS Group is a global market leader with over 20 years experience in the distribution of IT security and Internet Technology solutions and services.

• Featured Content:» Interviews» Products» Use Cases» Videos» Whitepapers

• Newsletter» Daily and Weekly

Newsletter• Education and Training

» SDN University™• Events

» DemoFriday™» Webinars» Chats» Virtual Panels

• Social Media» Twitter» Linkedin» Google» FaceBook

About SDNCentralIndependent Community for SDN and #1 Resource for Network Virtualization

Copyright 2013. All Rights Reserved. 5

• Demographics:» 30%: Buyers» 10%: Vendors» 20%: Channels» 40%: Integrators

• Key Stats:» 80K+ monthly page views» 22K+ monthly unique visitors» 150+ companies profiled» 35+ open source project profiled

SDNCentral: Rapidly Growing Community

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Web Linkedin @SDN_Tech @SDN_News

Community Participants


What is SDN?

sdncentral.com I computerlinks.com

First, Why SDN?Networks are an order of magnitude larger; automation has lagged


SDN solves inflexibilities and inefficiencies that inhibit scale & automation

SDN Definition

Centralization of control of the network via the

Separation of control logic to off-device compute, that

Enables automation and orchestration of network services via

Open programmatic interfaces

SDN Benefits

Efficiency: optimize existing applications, services, and

infrastructure

Scale: rapidly grow existing applications and services

Innovation: create and deliver new types of applications and services and

business models

What is SDN and What are Its Benefits?



History of SDN: Before OpenFlow (BO)The Distributed Control Plane is not new…..

Separated Control & Data PlanesEarly ‘90’s

Distributed Control Plane w/in Switch

Mid- ‘90’s

All Data w/in Control Plane Early ‘00’s

Separated Control & Data Planes Late ‘00’s

MPLS & 3GPP Vendors…


Past Experience to Draw On

• Focused on centralized management & wireless control-plane

• Lack of northbound APIs

• Control-plane/Data-plane Separation• Proprietary communications channel

DC Chassis-based switches & routersTelco Equipment (MPLS, etc)Controller-based wireless


Evolution of OpenFlow and SDN

SANE ETHANE NOX/OpenFlow

OpenFlow 1.0

OpenFlow 1.1

OpenFlow 1.2

OpenFlow 1.3

Stanford Clean Slate/Berkeley• Martin Casado• Nick McKeown• Scott Shenker• And others…

RouteFlow

Beacon

POX

TremaFlowScale

Frenetic

Indigo

FlowVisorPantou

Ryu

Many many more…


Packet-Forwarding Hardware

Operating System

L2/L3 L4-7 App App

Pre-SDN Network


Operating System

L2/L3 L4-7 App App


Operating System

L2/L3 L4-7 App App

RoutersSwitchesRemote-access devices…Forwarding Plane

Control Plane

Management Plane

Operating System


SDN Controller/ Network Operating System

App App App App

OpenFlow


OpenFlow compliant OS

SDN-Powered Network





Well-definedOpen API


OpenFlow Basics

Flow 1

Flow 2

Flow 3

Flow N

…

Rule(exact & wildcard) Action Statistics




…

OpenFlow BasicsExploit the flow table in switches, routers, and chipsets


+ I2RS, ForCES, SDNP, PCE, NFV etc

SDN is More than Just OpenFlow

OpenFlow

CLI

NetConf/YANG

XML-RPC

RESTful APIs, XMPP

vSphere APIs

OpenStack

SNMP

NetFlow, sFlow, jFlow, IPFIX, NetStream

Configuration Signaling Status/Alerts Statistics Sampling

SDN Use Cases


Simplification-----

ConsolidationStandardizationConvergence

Automation

-----People, Policy,

ProcessGovernance

Assurance

-----Security

ComplianceDashboards

What’s Core to SDN Use Cases

18

Customers need a portion of each element to adopt SDN in production


• Network Virtualization

» Slicing the network» Multi-tenancy for private, public and hybrid clouds

» Flexible network configuration – replicate existing topologies

» Stretching the network» Across racks within datacenter

» Inter-datacenter for private and hybrid clouds

» Automation and orchestration» Coordination across all resources, including networks, compute, storage

» L2/3 and L4-7 coordination and service insertion

• Visibility and troubleshooting

» Tap aggregation

DataCenter Use Case Examples


• Service chaining» Configuring L4-7 chain of functions dynamically» Related to NFV initiative

• Dynamic WAN reroute» Allow large dataflows to bypass bottlenecks

• Dynamic WAN interconnects» Create instant exchanges between peering networks

• Bandwidth on demand» Programmatic interface for end-user to request instant BW

• End-to-end service provisioning» SP datacenter all the way to mobile handsets with QoS, SLA

Service Provider Use Case Examples


SDN Ecosystem


•Broadcom, Centec, EZChip, Intel/Fulcrum, Netronome, MarvellSilicon

•Arista, Brocade, Cisco, Dell, Extreme, HP, IBM, Juniper, Mellanox, NEC, Pica8,…Switches

•Cisco, Juniper, HuaweiRouters

•6WIND, Embrane, LineRate/F5, Vyatta/Brocade, QOSMOSL3/4-7

•Anuta Networks, LyattisOrchestration and Automation

•Cyan, GuavasManagement and Analytics

•Contextream, VMware, Midokura, vCider/CiscoVirtualization

•Big Switch Networks, Cisco, HP, IBM, Juniper, NECControllers

All Networking Vendors are now SDN Vendors150+ companies at SDNCentral.com


• Extreme, HP, NECOpenFlow-centric

• ALU, Arista, Brocade, Cisco, Dell, Ericsson, IBM, Huawei, JuniperStraddle

• VMware/NiciraProprietary

Competing Approaches from the Major Vendors


• NOX/POX, Floodlight, Trema, Ryu, Daylight**• FlowVisor*Controllers

• OpenvSwitch, Indigo, LINC,Of13 softswitchVirtual/ Soft Switches

• Quagga, RouteFlowRouting

• OpenStack Quantum, CloudStackOrchestration

• FortNOX, Fresco, ResonanceSecurity

SDN Open-source Projects - Sample

24

Check out SDNCentral.com for latest


Getting Started



Custom Solutions

Tailored Solutions

Packaged Software

Is SDN Ready to Deploy in 2013?Maybe, since SDN early stage in typical enterprise software market evolution

Early Market Mature Market

SDN Today

• Limited developer communities / concentrated at few companies• Usually controlled by single commercial entity. Potentially risky• Lack of reference implementation slowing down OpenFlow

Open Source

• Scrambling to claim everything new is ‘SDN’• Spotty and inconsistent support for SDN• Not one vendor / product fits all customers or specific problems.

Established Vendors

• Attempt to sell packaged products at a stage where value is created by custom solutions

• Few or no production customersStart Ups

• Early adopters looking to reap competitive advantage via SDN• Financials, Web 2.0, Service Providers• Most revenue is professional services driven

Customers

SDN Perspectives in 2013

27

Our learnings from client engagements & operating SDNCentral


Attempting to Run before Crawling

Lack of clear business objective / problem statement

Failure to manage expectations

Failure to understand limitations of current software & hardware

Believing people who say they know how to solve your

problem

Usually set up to sell products

Product designed 2–3 years back before problems and use cases were

well understood

Forces you on a path with solution that was never designed for your use case

in mind

Pitfalls to Avoid

28

Mistakes we see clients making and have provided advice on


Use learnings to determine appropriate next steps in late 2013, early 2014,when vendor products mature

Work with trusted vendors and advisors to design a POC

Establish a valid business use-case where SDN can bring value

Learn and read-up on SDN

So, What to Do in 2013?


• How many production / paid deployments?

• How many current trials do you have running??

• How much money have you raised & when?

• Where does <insert your company name > sit on your priority list?

• Who are your typical customers?

• Are you SP or Enterprise focused?

• How what use-cases / solutions do you support? Which one are you focused on?

• Do you provide products or services?

Questions to Ask Prospective SDN Vendors

30

How to separate SDN reality from SDN and vendor hype in an early market.


SDN: Real World Perspectivesfrom a Real World

Networking Practitioner


Questions and Answers


Please Visit:SDNCentral.com

The Independent Community for SDN and Network Virtualization

Copyright 2013. All Rights Reserved. February 2, 2012

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