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Software-Defined WAN 101

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WWW.GTRI.COM © 2016 Global Technology Resources, Inc. All rights reserved. Software Defined WAN 101 Mani Ganesan - Cisco Michael Edwards - GTRI
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WWW.GTRI.COM© 2016 Global Technology Resources, Inc. All rights reserved.

Software Defined WAN 101Mani Ganesan - CiscoMichael Edwards - GTRI

Agenda• What is SD-WAN ?• IWAN Architecture Overview

• Transport Independence• Intelligent Path Control• Application Optimization• Secure Connectivity

• Orchestration & Automation• Closing

2

Digital Innovation Overwhelming the Branch

3

BRANCH

OSUpdates

HD Video

Mobile Apps

Online Training

Social Media

Guest Wi-Fi

MORE USERS

MORE APPS

MORE THREATS

80% Of employee and customers are servedin branch offices*

20-50%Increase in enterprise bandwidth per year through 2018**

30%Of advanced threats will target branch offices by 2016 (up from 5%) ***

OmnichannelApps

SaaS Enterprise Apps

Digital Displays

* Tech Target, Branch Office Growth Demands New Devices., 2013

** Gartner, Forecast Analysis: Worldwide Enterprise Network Services, Q2 2015 Update

*** Gartner: “Bring Branch Office Network Security Up to the Enterprise Standard, Jeremy D’Hoinne, 26 April. 2013.

58% OF IT BUDGETS SPENT ON WAN CONNECTIVITY

4

Source: IDG

What If Your WAN Can…

5

Hours Minutes

Pinpoint Application Issues Instantly

Improve Your Application Performance

1x 2x -20x

Increase WAN Utilization

Deliver More Bandwidth for Lower Cost

BackhaulLocal & Cloud

Consistent Security Policies

Ensure Security Over Any Connection

By Device System

Simplify Operations

Reduce Network Complexity

Internet as an Extension of Enterprise WAN

6

Commodity Transports Viable Now

Dramatic Bandwidth, Price Performance Benefits

Higher Network Availability

Improved Internet Performance

ONUG - Software Defined-WAN Requirements

Branch

PrivateCloud

VirtualPrivateCloud

PublicCloud

MPLS (IP-VPN)

Internet

CSR1000-AX

1) Physical or Virtual* devices2) Zero Touch Deployment

7) L2/3 Interoperability

8) Management Dashboard9) Open North-bound API

3) Dynamic Traffic Engineering

5) HA and Resilient WAN6) App Visibility, Prioritization and Steering

4) Active-Active Architecture

APICPrime

10) FIPS 140-2 w/ Cert Management

OptimizedSecure Transport

Direct InternetAccess

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SD-WAN and beyond with Cisco IWAN

8

SD-WAN and Beyond with Cisco Intelligent WANApplicationsUsers/Devices

Private(MPLS)

Public(Internet/4G LTE)

Hybrid(MPLS, Internet)

SMART• Intelligent Path Control• Application Optimization• Advanced Content Caching

SECURE• Secure Direct Internet Access• Advanced Threat Defense• Robust Data Encryption

SIMPLE• SD-WAN Policy Management• Deployment Automation• Open APIs

TransportIndependence

Application Optimization

Secure Connectivity

Intelligent Path Control

Technology Blocks

Intelligent WAN: Leveraging the InternetSecure WAN Transport and Cloud Access

10

OptimizedSecure Transport

Branch

Direct CloudAccess

PrivateCloud Virtual

PrivateCloud

PublicCloud

1. IWAN Secure transport for private and virtual private cloud access

2. Leverage local Internet path for public cloud and Internet access

Increase WAN transport capacity and app performance cost effectively!

Improve application performance (right flows to right places)

MPLS (IP-VPN)

Internet

Intelligent WAN (IWAN) ArchitectureEnterprise

11

MPLS

UnifiedBranch

3G/4G-LTE

Internet

PrivateCloud

VirtualPrivateCloud

PublicCloud

Application Optimization

Enhanced ApplicationVisibility and Performance

Secure Connectivity

ComprehensiveThreat Defense

Intelligent Path Control

ApplicationAware Routing

TransportIndependence

SimplifiedHybrid WAN

Management Automation

Cisco Intelligent WANEnabling the Next-Generation

Branch

Mani Ganesan - Cisco

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Transport-IndependenceVirtualizing the Enterprise WAN

13

Simplifies WAN Design Dynamic Full-Meshed Connectivity Proven Robust Security

Flexible Secure IWAN Over Any TransportSecureFlexible

• Easy multi-homing with several providers

• Single routing control plane over the top of provider networks

• Consistent design over all WAN transport types

• Scalable Hub-n-spoke with dynamic full mesh topology

• Industry Certified security compliance

• Scalable high-performance cryptography in hardware

ISR

WAN

Internet

MPLSASR 1000

ASR 1000

Transport-Independent

Data CenterBranch14

IWAN Transport IndependenceConsistent deployment models simplify operations

Internet MPLS

Branch

DMVPN DMVPN

IWAN HYBRID

Data Center

ISR

ASR 1000 ASR 1000

ISP A SP B

4G/LTE

Branch

DMVPN

IWAN HYBRID/LTE

Data Center

ISP C SP B

ASR 1000

MPLS

Branch

MPLS

DMVPN

IWAN Dual MPLS

Data Center

ISR

ASR 1000 ASR 1000

SP A SP B

DMVPN

MPLS

DMVPN

ISR

ASR 1000

15

Intelligent Path ControlImproving Application Delivery and WAN Efficiency

23

Getting the Most Out of Your WAN InvestmentBenefits of Intelligent Path Control

Data CenterBranch

ASR 1000

ASR 1000

ISR

MPLS

Internet

EnablingHybrid WANs

Efficient Distribution of Traffic Based Upon Load

or Path Preference

Application Best Path Based on Quality

Protection FromCarrier Black Holes

and Brownouts

Lower WAN Costs

Full Utilization of WAN Bandwidth

Improved Application

Performance

Higher ApplicationAvailability

24

Intelligent Path Control with PfRVoice and Video Use-Case

Branch

MPLS

Internet

Virtual PrivateCloud

Private Cloud

• PfR monitors network performance and routes applicationsbased on policy

• PfR load balances traffic based upon link utilization levels to efficiently utilize all available WAN bandwidth

Other traffic is load balanced to maximize bandwidth Voice/Video will be rerouted if

the current path degrades below policy thresholds

Voice/Video take the best delay, jitter, and/or loss path

25

SP1 (MPLS) ISP (FTTH)

• Protect voice and video quality

Latency < 150 msJitter < 20 ms

• Protect Email applications from WAN congestion

Loss < 5%

• Voice and video preferred path SP1

• Email preferred path ISP• Increase utilization

by load sharing

Multimedia and Critical Data Policy

Business App

Best-Effort Traffic

High Delay Detected

SP1 (MPLS) ISP (DSL)

Voice and Video

High JitterDetected

Email

Best-Effort Traffic

Protecting Critical Applications While Increasing Link Efficiency

• Protect transactionalbusiness app from brownouts

delay < 250ms• Preferred path SP1 (MPLS)

• Increase WAN bandwidth efficiency by load-sharing traffic over all WAN paths, MPLS + Internet

Business App and Load-Balancing Policy

27

Load BalancingMaximizing Link Utilization to Increase Available Bandwidth

• Traffic distributed across all paths to efficiently use all WAN bandwidth

• Load Balancing based upon link utilization levels

• External links can have different bandwidth capacitiesMPLS = 1.5MbpsInternet = 15Mbps

ISR

WAN

Internet

MPLSASR 1000

ASR 1000

Data Center

50% T1 = 750kbps

50% 15Mbps = 7.5Mbps

28

Application Optimization

32

Today’s Network is an IT Blind Spot

• Static port classification is nolonger enough

• More and more apps are opaque

• Increasing use of encryptionand obfuscation

• Application consists of multiple sessions (video, voice, data)

• What if user experience is not meeting business needs?

33

Branch

PrivateCloud

Make Your IWAN Application AwareApplication Visibility and Control (AVC)

DC/Headquarters

PublicCloud

Cisco AVC

Application Performance Visibility

• Application inspection with existing routers

• Rich data collection using NetFlow v9/IPFIX

• Easy to integrate into many reporting tools

Smart CapacityPlanning

• Better use of costly bandwidth

• Per-branch and per-application level reporting

Business Objective Enforcement

• Service Level monitoring per application

• Better Analytics to adjust network policies to maintain compliance

AVCAVC

34

What applications, how much bandwidth, flow direction?(NBAR2 and Flexible Netflow) Basic Monitoring

Performance Collection & ExportingIntegrated performance monitoring and advanced metrics for different type of applications and use cases

HTTP HTTP

Voice and Video Performance(Media Monitoring)

Unified Monitoring

30% of traffic is voice and video

Critical Applications Performance(Application Response Time)

40% of traffic is critical applications

AVC

35

PrivateCloud

Add WAN Optimization with WAAS + AkamaiSpeed and Bandwidth Benefits on Top of the IWAN

Branch DC/POP

ApplicationOptimization

• Improved Application performance, delay mitigation, less bandwidth

• Twice as many Citrix users over same WAN, 70% faster

• Typical ROI in less than one year, 65% BW cost savings

Content Caching& Prepositioning Simple and Scalable

• Works with existing branch routers

• Scale out optimizations resources with AppNav

• Native HA resiliency

vWAAS AppNav-XEController

CSR

WAVE,vWAAS

WAN

Improving Application Performance

• Reduces WAN bandwidth usage, while accelerating applications

• Intelligent caching of internal and Internet content

• Prepositioning of data and rich media before it is needed

37

WAAS and Akamai Connect Synergy

AKAMAI ConnectTransparent

Cache Dynamic URL Cache Akamai Connected Cache

Content Pre-positioning

CISCO WAASLZ

CompressionTCP

OptimizationData

De-duplicationApplication Specific

Acceleration

38

IWAN Secure Connectivity

45

Intelligent WAN: Secure ConnectivitySecuring the network and users

Secure WAN Transport

Branch

MPLS (IP-VPN)

InternetSecureInternetAccess

PrivateCloud Virtual

PrivateCloud

PublicCloud

Two areas of concern1. Protecting the network from outside threats with data privacy over provider networks2. Protecting user access to Public Cloud and Internet services; malware, privacy, phishing,…

46

Securing the IWAN TransportIPSec VPN and Access Control

• Step 1: Authenticate hardware and softwareTrust Anchor Module verification

• Step 2: Secure TransportProven IPsec VPN overlayStrong Cryptography: IKEv2 + AES-GCM 256F-VRF to isolate provider networks

• Step 3: Access ControlIOS Zone-based Firewall or ACLs protectionRole based access to router w/ loggingMinimize exposure

Provider assigned addressing to hide routersDon’t put tunnel addresses into DNS

MPLS Internet

Branch

ASR 1000 ASR 1000

ISP A ISP C

Data Center

47

* RFC 6379 Suite B ** Not supported on older RP1 based ASR 1000s

Cisco Router Security Certifications

FIPS Common Criteria NG Strong Crypto140-2, Level 2 EAL4 AES-GCM-256*

Cisco ISR 890 Series

Cisco ISR 1900 Series

Cisco ISR 2900 Series

Cisco ISR 3900 Series

Cisco ISR 4000 Series

Cisco ASR 1000 Series **

48

MPLS Internet

Branch

ASR 1000 ASR 1000

ISP A ISP C

Data Center

Add Network Integrated Threat DefenseIOS Zone-Based Firewall

• Control the Perimeter:• External and internal protection: internal network is no longer trusted• Protocol anomaly detection and stateful inspection

• Communicate Securely: • Call flow awareness (SIP, SCCP, H323)• Prevent DoS attacks

• Flexible:• Split Tunnel-Branch direct Internet access• Internal FW— addresses regulatory compliances

• Integrated: • No need for additional devices, expenses and power• Works with other IWAN Services: CWS, WAAS, UCS -E,…

• Manageable: • APIC-EM, Prime, CLI, SNMP, CCP, and CSM

51

Intelligent WAN—Direct Cloud Access

Branch

MPLS (IP-VPN)

InternetDirect

InternetAccess

PrivateCloud

VirtualPrivateCloud

PublicCloud

• Leverage Local Internet path for Public Cloud and Internet access• Improve application performance (right flows to right places)

SolutionsOn Premise – Zone Based FirewallCloud Based – Cloud Web Security

CWS

ISR-AXZBFW

55

Secure Internet Access with Cisco Cloud Web Security (CWS) with ISR-4000 and ISR-G2 Series Routers

Secure Public Cloud and Internet

Access

ISR Connector toCWS Firewall towers

Web Filtering, Access Policy, Malware Detect

WAN1(IP-VPN)

CWS

PrivateCloud

PublicCloud

Branch

WAN2(Internet)

IWAN IPsec VPN for Private Cloud

TrafficIOS Firewall to protect Internet

Edge

Internet

60

Orchestration and Automation

61

Network-Wide Abstractions Simplify the NetworkApplications

SecurityOrchestration Automation Collaboration

SOUTHBOUND ABSTRACTION LAYER

REST API

CATALYST® CISCO NEXUS® ASRISR WIRELESSASA OTHER

SDN Ideal: Controller as the

Application Platform

The SDN Ideal:

Controller as the Application

Platform

Virtualization

64

IWAN SD-WAN Automation with APIC-EM

`

Cisco® APIC-EM centralized policy expression and distribution

Distributed policy enforcement

Automated application and topology discovery

Application and network performance monitoring

Adaptive path selection and QoS to sustain policy

Performance analytics collected network-wide and reported centrally

MCBranch

MCLarge Site

MCCampus

Data Centeror POP

4GLTE Internet

Data Centeror POP #2...n

MPLS (IP-VPN)

IWAN Domain ControllerPolicy Rendering

Policy Distribution and Domain Control

Distributed Policy Enforcement

IWAN APP

Policy Expression

66

Cisco IWAN Management PortfolioCovering a broad range of requirements and preferences

• Customer wants advanced provisioning, life cycle management, and customized policies

• System-wide network consistency assurance

• Lean IT OR IT Network team

Cisco

Prime Infrastructure

• Customer needs customizable IWAN with end-to-end monitoring

• One Assurance across Cisco portfolio from Branch to Datacenter

• IT Network team

Enterprise Network Mgmt and Monitoring

Ecosystem Partners

IWAN App

• Customer wants considerable automation and operational simplicity

• Requirements consistent with prescriptive IWAN Validated Design

• Lean IT organization

Prescriptive Policy Automation

• Customer looking for advanced monitoring and visualization

• QoS/ PfR/ AVC configuration, Real-time analytics and network troubleshooting

• IT Network team

Application Aware Performance Mgmt

AdvancedOrchestration

67

IWAN AppDemo

68

GTRI SDN Solutions• GTRI’s Virtualization and Advanced Networking Professional Services

(PS) practice has expertise with SDN vendor solutions.• GTRI has top-tier partner status with the most relevant long-term

vendors in the IT virtualization market.• GTRI offers an SDN readiness assessment service to assess your

infrastructure, your applications, and the benefits to your business gained from using SDN.

• GTRI has a SDN test bed where we can learn and teach SDN solutions and help validate solutions prior to deployment.

• GTRI is performing SDN deployments and we will freely share the latest vendor and industry information with you.

© 2016 Global Technology Resources, Inc. All Rights Reserved. 85

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teams together• Review SDN capabilities within your existing networked systems• Discuss SDN architecture and design options• Review network automation and network programmability potential• Engage in conversation on securely deploying IPv6 and using SDN for

security

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