an intro to sdn - cisco networking academysession of the software defined networking webinar series!...

An Intro to SDN

Hostess: Kara Sullivan

29 November 2016

Software Defined Networking Webinar Series

Speakers: Serges Nanfack

© 2015 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 2

Welcome to the 2nd session of the Software Defined Networking webinar series!

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NEXT SESSION:

Applications of SDN in Cisco

TBD, late January time frame

Details will be posted at: bit.ly/SDNSeries

bit.ly/SDNSeries

Serges Nanfack – Technical Manager Africa

[email protected]

29 November 2016

Automating Network Design

Software Defined Networking

mailto:[email protected]

5© 2016 Cisco and/or its affiliates. All rights reserved. Cisco Confidential

Last Session

Today’s network What’s Network

programmingWhy do we

need them ?What enable them

Social Media

Disruptions

Mobile

Data ( Big)

Cloud

Open Systems

Dumb & Passive

Virtualization of

the control

plane

Customized

programs into

the nodes of the

network

Active packets

Leverage

computation in the

network.

Make network more

agile

Load new services on

demand.

Field-

programmable

gate arrays

(FPGAs).

Component-based

software

engineering

Code Mobility


Agenda

SDN Architecture

OpenFlow

Cisco Application Centric Infrastructure – APIC-EM


SDN Architecture


3

Today1990’s

+

+

or

Evolution of the Server Configuration


9

Security QoS Path

Optimization

Today’s IT Model - Complex, Not Fast Enough


3

VirtualizedTraditional

Network Virtualization


What is SDN? - Classical Approach

Control

Plane

Data plane

Control

Plane

Data plane

Where/How to Send packet

Forwarding Packets

Control

Plane

Data plane

Controller

NETops/DEVops

“…In the SDN architecture, the control

and data planes are decoupled, network

intelligence and state are logically

centralized, and the underlying network

infrastructure is abstracted from the

applications…”Source: www.opennetworking.org

The Classis Approach : SDN


Control

Plane

Data plane

Control

Plane

Data plane

Where/How to Send packet

Forwarding Packets

Control

Plane

Data plane

Controller

NETops/DEVops

Control

PlaneControl

Plane

PRESERVE

WHATS

WORKING

EVOLVE FOR

EMERGING

REQUIREMENTS

• Resiliency• Scale & Security• Rich Feature Set

• Operational Simplicity

• Programmability• Application Aware

REVOLUTIONEvolution NOT

What is SDN? – Cisco ApproachThe Cisco Approach : ACI – Application Centric Infrastructure


Hybr idPure OpenFlow

• Controller to network connection can fail

• Needs large number of match entries

• Flow update and network reaction issues

• Network resiliency through proven L2/L3 protocols

• IOS does heavy lifting

• Do fine tuning via SDN

• Leverage faster network reactions through

traditional mechanism

• Less number of flow updates

X

X

X

IOS

IOS

IOS

Traditional Network Architecture

Control Plane

Data Plane

Network Architecture with SDN

IOS

Hardware

In other words…

In the SDN paradigm, not all

processing happens inside

the same device


3

SDN Framework


OpenFlow


OpenFlow is a communications protocol that

gives access to the forwarding plane of a

network switch or router over the network

What is Openflow?


Four part to Openflow

• Openflow Controller

• Northbound API

• Openflow Device Agent

• Openflow Protocol


Central Administration and

Operations point for Network

Elements

Openflow Controller


Openflow Controller | Northbound API

Northbound API

Integral part of Controller

“Network enabled” application can

make use of Northbound API to

request services from the

network…


Openflow Device Agent

Agent runs on the network device

Agent receives instructions from

Controller

Agent programs device tables


Openflow Protocol

Openflow Protocol is…

“A mechanism for the Openflow

Controller to communicate with

Openflow Agents…”

Openflow does not equal SDN

Openflo

w

Software

Defined

Networking

Openflow is one flavor of SDN


Easy QoS

Follow Me QoS

Compliance Assurance

Enabling Network Virtualization

Automated Performance Routing (PfR) Configuration

Automated WAN Policy Compliance Assurance

SDN types

Device-based

SDN

Controller-based

SDNPolicy-based

SDN


Cisco Application Centric Infrastructure – APIC EM


3

• Application Network profile:

Collection of end-points groups

• Application policy Infrastructure Controller:

is the brain of the ACI architecture

• Cisco Nexus 9000 Series Switches

Core components of Cisco ACI


3

• Discovery

• Device inventory

• Host Inventory

• Topology

• Policy

• Policy Analysis

APIC –EM features


Easy QoS

Follow Me QoS

Compliance Assurance

Network-Wide Rapid Threat Detection and Mitigation (Sourcefire)

Solving the Most Pressing, Complex and Tedious IT Problems

Automated Performance Routing (PfR) Configuration

Automated WAN Policy Compliance Assurance

QoS

Cisco APIC - Enterprise Module: Initial Deployment Scenarios


3

Cisco APIC - EM: Automatic Threat Detection and MitigationNetwork Wide Security Deployed Rapidly

Defense Center

REMEDIATION ACTION

THREAT DETECTED

UPDATE

Cisco

APIC -

Enterprise

Module


QoS Use Case Summary

CVD* or IT Template-Based

QoS Policy

Flag Against Policy Automated QoS

for User Mobility

* CVD – Cisco Validated Design

QoS


Cisco APIC Enterprise Module: Easy QoSQoS Management Automation

Cisco

Validated

Design

Based

Templates

Config.Cisco

APIC

Enterprise

Module

QoS

http://www.google.com/url?sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&docid=ln_0goqaJV_MOM&tbnid=fbpPXIoFBe-8DM:&ved=0CAUQjRw&url=http://www.engageselling.com/training/sales-mastery-home-action-kit.php&ei=A992UruEBOjSiAL1poCAAw&psig=AFQjCNGEdyJtQSH_IxOVNaDM1Ky7EL_ReQ&ust=1383608435713168


http://www.google.com/url?sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&docid=wD6qqBPp296joM&tbnid=3CTNtmKltT3HCM:&ved=0CAUQjRw&url=http://www.fuelinteractive.com/blog/awesome-apps-for-productivity&ei=UHt2Utm5DMGsiALSpYHoBg&bvm=bv.55819444,d.cGE&psig=AFQjCNEarkurAtJBylLEvWeupsKE5EnJuA&ust=1383582858989392

http://www.google.com/url?sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&docid=wD6qqBPp296joM&tbnid=3CTNtmKltT3HCM:&ved=0CAUQjRw&url=http://www.fuelinteractive.com/blog/awesome-apps-for-productivity&ei=UHt2Utm5DMGsiALSpYHoBg&bvm=bv.55819444,d.cGE&psig=AFQjCNEarkurAtJBylLEvWeupsKE5EnJuA&ust=1383582858989392

https://www.google.com/url?sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&docid=IQB-vVWPWKlTmM&tbnid=2RvAbhKnj1CFgM:&ved=0CAUQjRw&url=https://www.fccu.org/?Cabinet=Main&Drawer=Information&Folder=Mobile+Services/Mobile+Apps&SubFolder=Mobile+Services/Mobile+Apps&ei=pHp2UsenH-OgjAL7kYCQCg&bvm=bv.55819444,d.cGE&psig=AFQjCNHAYauJAiEaXHoxucx8nop8l5JvQQ&ust=1383582748233728

https://www.google.com/url?sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&docid=IQB-vVWPWKlTmM&tbnid=2RvAbhKnj1CFgM:&ved=0CAUQjRw&url=https://www.fccu.org/?Cabinet=Main&Drawer=Information&Folder=Mobile+Services/Mobile+Apps&SubFolder=Mobile+Services/Mobile+Apps&ei=pHp2UsenH-OgjAL7kYCQCg&bvm=bv.55819444,d.cGE&psig=AFQjCNHAYauJAiEaXHoxucx8nop8l5JvQQ&ust=1383582748233728

http://www.google.com/url?sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&docid=PxPbPsND6-rNhM&tbnid=z6Wg7Z7j4xgTsM:&ved=0CAUQjRw&url=http://www.clker.com/clipart-25224.html&ei=OHx2UvfwD8fxiwLKlYDgBQ&bvm=bv.55819444,d.cGE&psig=AFQjCNFjyNWxTAdABo7mqh-b_xx-8SXjOQ&ust=1383583139727504

http://www.google.com/url?sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&docid=PxPbPsND6-rNhM&tbnid=z6Wg7Z7j4xgTsM:&ved=0CAUQjRw&url=http://www.clker.com/clipart-25224.html&ei=OHx2UvfwD8fxiwLKlYDgBQ&bvm=bv.55819444,d.cGE&psig=AFQjCNFjyNWxTAdABo7mqh-b_xx-8SXjOQ&ust=1383583139727504


QoS

Cisco APIC – EM : QoS ProvisionQoS Management Automation


Cisco APIC Enterprise Module: QoS ComplianceQoS Management Automation

Config.

Automated

QoS Compliance

Check

Configuration

Change

Cisco

APIC

Enterprise

Module

QoS




Updated

Cisco APIC Enterprise Module: Follow-Me QoSQoS Management Automation

Config.

Updating…

Cisco Prime

Updated

Cisco

APIC

Enterprise

Module

QoS




75,000 Employees,160 Sites Globally7,000 Switches and 29,000 Routers

Cisco

APIC -

Enterprise

Module

Before: Weeks

5-7 Lines of Manual Configuration

on Every Edge Device

Manually Customize Configuration

for Each Type and Model of Device

Ad-hoc Script for Scale

Manual Quarterly Compliance Check

After: Hours

Automated Configuration

for Every Edge Device

Automatically Customized Configuration

For Each Type and Model of Device

Just a Click

Automatic Compliance Check Whenever Desired

Cisco on Cisco: Deploying HD Jabber Video Across Cisco

QoS


Pages of Interest

• www.opennetworking.org

• www.openstack.org

• Cisco application policy interface controller (apic)

http://www.opennetworking.org/

http://www.openstack.org/

http://www.cisco.com/c/en/us/products/cloud-systems-management/application-policy-infrastructure-controller-apic/index.html


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an intro to sdn - cisco networking academysession of the software defined networking webinar series!...

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