1 - What is OpenFlow

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OpenFlow and Software Defined Networkingpresented by Greg Ferro

What is OpenFlow


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More Data Center Webinars

Availability

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Yearly subscription

Other options

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Inter-DC FCoE has very limited use and requires no bridging

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Next-Generation IP Services

Data Center 3.0 for Networking Engineers

Intro to Virtualized Network

Data Center Fabric Architectures

Data Center Interconnects

OpenFlow

VMware Networking


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More Virtualization Webinars

Availability

Live sessions

Recordings of individual webinars

Yearly subscription

Other options

Customized webinars

ExpertExpress

On-site workshops

Inter-DC FCoE has very limited use and requires no bridging

More information @ http://www.ipSpace.net/Webinars

Introduction to Virtualized Networking

Virtual Networking SecuritvSphere 5 Update

OpenFlow

Spring 2012

VXLAN Deep Dive

Cloud Computing NetworkVMware Networking

Coming in 2012 Coming


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Introduction to OpenFlow

Break

Software Defined Network

Demo

Questions


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FORWARDING

PLANE

?

?

?


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Forwarding Tables=

Forwarding

Information Base

=

FIB


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RIB

RIB

RIB

RIB


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Let me ask, are Routing protocols good enoug

Is OSPF/BGP the only way to map paths thro

the network ?

Are there other options ? Are theyBETTER


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reliable

proven

deterministic ( knowable / predictable )

self healing (around network failures)

autonomous

scalable ?


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RIB

RIB

RIB

RIB

Routing

Protocol

Routing

Protocol

Routing

Protocol

Routing

Protocol


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Controller

use an externa

to update the

forwarding ta

on routers and

switches


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Device Control Plane

Routing

Table

Router Router Router

Forwarding

Table

Device Forwarding Plane

Routing Table =

Information Ba

Many routes to

Only best route

is loaded into F

FIB = Forwardi

Information Ba

Contains Layer

encapsulation d

hop


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Typical devicearchitecture t

Complex softw

BGP/LDP/OSP

Multicast etc

Simplified De

Architecture o

changes to .....

Network Device

Control Plane

Management

Data Path / Forwarding


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But a device c

maintain prot

AND have Ope

support

More on this l

OpenFlow

Client

Data Path / Forwarding

Network OSManagement

OpenFlowController

STP/ OSPF / BGP

Neighbors


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The Device Operating System handles all deviceoperations such as Boot, Flash, Memory Manage

TCAM, OpenFlow Protocol handler, SNMP agent

on.

Consider a device with no OSPF, Multicast, BGP, MAC address tables, VLAN tagging, LDP.......

Or a device without code bloat, only what you nee

Smaller code = less bugs, less resources, less cost


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If a device has a forwarding a table that forwEthernet frames that encapsulate IP packets

Is it a router or a switch ?

Answer: ?


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Switching = forwarding by

destination MAC

Routing = forwarding by

destination IP

Flow Forwarding by flow

rule ( CEF ? )


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switching vs bridging.

switching=

L2 switching,

L3 switching or

L4 switching.


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its software, its an application (appliance)

connectivity to all network devices

builds a network topology in memory.

runs an algorithm

then updates the Forwarding table by an API using the Opprotocol.

Similarities to Stack Master, Cisco supervisors, XRE in Q

valid.

'OpenFlow' Controller


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Network

Model

OpenFlow

p

UI

Controller

Network


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http://packetpushers.net

http://www.bigswitch.com

http://ipspace.net

Documents

1 - What is OpenFlow