How taking a strategic approach to WAN optimization supports application delivery

Business Optimized Networks

How taking a strategic approach to WAN optimization supports application delivery

Mark Burton,

Product Management Director,

Ipanema Technologies

Business Optimized Networks www.ipanematech.com 1

AgendaAgenda

Enterprises and service providers tend to offer WAN optimization as a tactical “quick fix” to performance problems in certain partsas a tactical quick fix to performance problems in certain parts of the network. Taking a more strategic approach to WAN optimization can yield benefits across the enterprise that are not limited to fixing short term performance and bandwidthlimited to fixing short term performance and bandwidth challenges.

Drawbacks of a “quick fix” tactical approachDrawbacks of a quick fix tactical approach

Benefits of a strategic approach to WAN optimization

2Business Optimized Networks www.ipanematech.com

What are the drawbacks of a “quick fix” approach?What are the drawbacks of a quick fix approach?

Li it d l bilitLimited scalability

Limited effectiveness

High management costs

Significant investment costs


Limited scalabilityLimited scalability

Traditional systems are “box based”B b d t i l t f fi tiBox based systems require a lot of configurationBox based systems lack global visibilitySimply accelerating traffic without knowing what/where/why will lead to a bigger problem later

Box based QoS mechanisms rely on policiesQ y pNumber of policies can be restrictive (just a few 1000s)In large datacentres, this leads to generalisationNeed to constantly keep policies current (manpowerNeed to constantly keep policies current (manpower intensive)


Limited scalabilityLimited scalability

R&D1HQ2

HQ1

DC2 Factory3

Factory2

DC1

Factory2

Site1

R&D2 Site2

Factory1

Site5


R&D2 Site2Site3

Site5Site4

Limited effectivenessLimited effectiveness

Traditional WOCs struggle to deal with meshed networks and meshed traffic flowsmeshed traffic flows

Traditional systems are designed to work point-to-point or in hub and spoke (star) networks

S l ti d l t d t ti li i l d t t dSelective deployment and static policies lead to unexpected results

Selective deployment denies unequipped sites the full benefitStatic policies cannot cope with modern dynamic WANs


Limited effectiveness in meshed networks

Congestion occurs at the destination, devices placed at the source cannot

Limited effectiveness in meshed networks

Minimum bandwidth per session required by SAP for a good end-user

The bursty Email sessions “kills” the SAP transactionsphandle it properly

for a good end user quality of experience

HQRegional HQ

WAN

SAPEmail

Branch officeBranch office

WAN

A user in the unequipped branch office initiates a SAP sessionThe same user in the unequipped branch office initiates an Email sessionA second user in the unequipped branch office initiates an Email

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A user in the unequipped branch office initiates a SAP sessionThe same user in the unequipped branch office initiates an Email sessionA second user in the unequipped branch office initiates an Email session

High management costsHigh management costs

Optimization methods need to be configured individuallyC fi ti d t b i t t ll t llConfiguration needs to be consistent across all controllersCentral manager not always helpful as local parameters still need to be set (WAN access, limitations etc)

Not easy to adapt to changes in the WANWANs are constantly evolving entities, changes happen all y g , g ppthe timeNew application roll out can cause huge workload in updates and reconfigurationgEach change can have same cost as original deployment


High management costsHigh management costs

Operational costs and

i k

WAN changes WOC operation

The number of SAP users in London offices increase by 20%

Reconfigure SAP parameters in LondonLegacy policy

based modelrisks Move application from primary

to secondary datacentreReconfigure all WOCs for new application policy

Launch new CRM application Reconfigure all WOCs for new application policy

Unmanageable zone

pp p y

Open a new branch Configure new WOC and reconfigure all WOCs that communicate with it

Globally deny access to a Reconfigure all WOCs for

Increasing number of sites and changes

Globally deny access to a new recreational application

Reconfigure all WOCs for new application policy


Significant investment costsSignificant investment costs

Despite cost decreases, WOCs are still expensive devicesE i ll i dditi t b h ffi tEspecially in addition to a branch office router

To get optimization benefits, you need to deploy at least one device in EVERY location

This is not practical in many networks


Significant investment costsSignificant investment costs

Even in a small network, significant device investment is needed

R&D1HQ2

HQ1

2 datacentre devices4 large office devices

2 HQDC2 Factory3

2 HQ2 R&D

3 Factory devices5 it d i

Factory25 site devices

Total: 14 sites, 14 devicesDC1

Site1

R&D2 Site2

Factory1

Site5Site4


Site3Site4

What is an Autonomic WAN Optimization System (AWOS)?What is an Autonomic WAN Optimization System (AWOS)?

Pain but no solutionNo Pain

You know thatyou’re not doing it

You don’t know that you’re not doing it Conscious

incompetenceUnconsciousincompetence

No pain because it’s fixed Pain and a solution!

AutonomicSystem

No pain because it s fixed

Y d i i h

Pain and a solution!

You can do it, butUnconscious ConsciousYou can do it without thinking about it

ou ca do t, butIt requires consciouseffort

Unconsciouscompetence

Consciouscompetence


How does an AWOS address the challenges?How does an AWOS address the challenges?

U li it d l bilitUnlimited scalability

Full effectiveness, even in fully meshed networks

Reasonable management costs

Low investment costs – minimal TCO, maximum value


AWOS - Unlimited scalabilityAWOS Unlimited scalability

Systematic, “not box based” approach – global visibilityCapture real time synchronized flow performance dataCapture real-time synchronized flow performance dataCentralize visibility and reporting using very little bandwidthDeliver the information in a variety of ways

Hi t i l tiHistorical reportingReal-time views and reports

U Q S th t l t th ti t kUses QoS that scales to the entire networkNo limitation on numbers of flow characteristics or actionsQoS delivered accurately regardles of numbers of sites or di ti (10 100 1000 )directions (10s, 100s, 1000s)Uses real-time visibility measurements to dynamically calculate most applicable QoS policies, second by second.


Autonomic system - simple centralized managementAutonomic system simple centralized management

Central Management Software

Cooperating devices

HQR i l HQ HQRegional HQ

B h ffiBranch office

WANBranch officeBranch office

Tele-managed sites (unequipped)


( q pp )

Capture and centralize flow data in real-time

Time

pTopology (subnets)

atio

nsAp

plic

a

Synchronized Global TableMonitoring & AlarmingReporting

HQRegional HQ


WAN


Global visibility and application discovery – real-time and historical


Use Global QoS mechanisms…

Global objectives

Use Global QoS mechanisms…

HQRegional HQ


WAN


… to manage the traffic dynamically across the entire networkReal-time traffic analysis

Automated global

… to manage the traffic dynamically across the entire network

Global objectivesg

computation of local parameters every second

Manage traffic across the entire networkg

HQRegional HQ


WAN


Full effectiveness, even in fully meshed networksFull effectiveness, even in fully meshed networks

AWOS is designed to deal with meshed networks and meshed traffic flowstraffic flows

Works with any network topologyHub-spoke (star)Lightly meshed (some to many)Fully meshed (any to any)

Don’t need to deploy devices to every locationp y ySelective deployment still guarantees unequipped sites the full benefitAutomatically adapts to modern dynamic WANs evenAutomatically adapts to modern dynamic WANs, even without devices everywhere


The Ipanema System can be deployed cost effectively and globally th k t C ti T l M tthanks to Cooperative Tele-Management

One to AnySingle Data Center

Any to AnyMultiple Data Centers

Some to AnyMultiple Data Centers

Branch Offices Branch Offices w/ inter site traffic

Tele managed site

w/ inter-site traffic

Tele-managed site (unequipped)

Physical device

Real-time cooperation


Real time cooperationBranch Offices

Define per user Application Performance Objectives …Define per user Application Performance Objectives …

Key Applications

Application Criticality

Per User Service Level Definition Library

Bandwidth (Kbps) Delay (ms) Jitter (ms) Loss (%)Application Criticality

SAP Top

Citrix (CRM) Top

……. ……. ……. …….

……. ……. ……. …….

……. ……. ……. …….

VoIP (G729) High

Oracle High

Cit i (MS Offi ) M di

50 100-300 n/a 1-3

20 100-300 n/a 1-3

20 50-150 40-80 0-1

Citrix (MS Office) Medium

Web (http://intranet/*) Medium

Other Low

20 100-300 n/a 1-5

20 200-1000 n/a 1-5

20 200-1000 n/a 1-5

10 200 1000 n/a 1 5

FTP Low

CIFS Low

10 200-1000 n/a 1-5

……. ……. ……. …….

……. ……. ……. …….

……. ……. ……. …….


Email Low ……. ……. ……. …….

AWOS – co-operative design to deal with meshed flows anywhere

Congestion occurs at the destination, devices placed at the source cannot

AWOS co operative design to deal with meshed flows anywhere

Minimum bandwidth per session required by SAP for a good end-user

The bursty Email sessions “kill” the SAP transactions

AWOS devices coordinate together and traffic is controlled at the sourcep

handle it properlyfor a good end user quality of experience

SAP transactions

HQRegional HQ

WAN

SAPEmail


WAN

A user in the unequipped branch office initiates a SAP sessionThe same user in the unequipped branch office initiates an Email sessionA second user in the unequipped branch office initiates an EmailCooperative Tele Optimization guarantees the performance


A user in the unequipped branch office initiates a SAP sessionThe same user in the unequipped branch office initiates an Email sessionA second user in the unequipped branch office initiates an Email session

Cooperative Tele-Optimization guarantees the performance of critical applications on unequipped sites

Reasonable management costsReasonable management costs

Centralized management means no individual configuration necessarynecessary

Configuration automatically consistent across all controllersNo local WOC parameters (apart from ip@, gateway)

Automatically adapts to changes in the WANWANs are constantly evolving entities, changes happen all y g , g ppthe timeNew application roll out easily managed through central management GUIgEach change has minimal cost


Reasonable management costsReasonable management costs

Operational costs and

i k

WAN changes AWOS operation

The number of SAP users in London offices increase by 20%

Automatically adaptsLegacy policy based model

risks Move application from primary to secondary datacentre

Automatically adapts

Launch new CRM application Create a new application performance objective and

Unmanageable zone

p jclick “update”

Open a new branch Define the site in the CMS and click “update”

Globally deny access to a Create a new application

AWOS objective based model

Increasing number of sites and changes

Globally deny access to a new recreational application

Create a new application performance objective at 0 kbps and click “update”


AWOS - minimal TCO, maximum valueAWOS minimal TCO, maximum value

Does not require devices in every site

Write meaningful SLA/SLO

Rightsize WAN for optimum price/performance

Accelerate where there’s a needAccelerate where there s a need

Make full use of redundant network paths

Understand cost of application usage


Write meaningful SLA/SLOWrite meaningful SLA/SLO

AQS > 9 for 99% of the time

MOS > 4 for 99% of the time

Exhaustive, per flow measurement of real traffic MOS

AQS

Application quality indicatorsApplication flow quality metrics

Application performance SLAs

Link delay < 50 ms during 99% of the timeA ti li k t ti Link delay 50 ms during 99% of the time

Link loss < 1% during 99% of the time

Link quality metrics

Active, per link testing (PING, SAA …)

Link performance SLAs


Rightsize the WAN to the desired service levelsRightsize the WAN to the desired service levels

With 1700 Kbit/s all applications meet their performance

bj ti 100% f th ti

With 512 Kbit/s, criticalapplications meet their performance objectives objectives 100% of the timeperformance objectives

100% of the time

2048

ess

rate

K

bit/s

1024

Acc

e K 1024

512


% of time with right Service Level

Use tactical acceleration techniques where there’s a needUse tactical acceleration techniques where there s a need

Source devices replace redundant

Without redundancy elimination Data Centers

patterns across sessions with labels

Network

+Response time

Network throughput

Destination devices store patterns in multi-level caches to reconstruct the original stream of information

With redundancy eliminationBranches

RAM or Disk based cache/compressionAccelerate up to 20x (RAM cache) or 100x

(RAM + disk cache)TCP and protocol acceleration techniques

Available throughput


Response time

TCP and protocol acceleration techniques

Automatically select the best access link with Objective-based RoutingAutomatically select the best access link with Objective based RoutingData Center

SAP Email Dynamically select the best network path for each session

Maximize both application performance and access links usage based on:g

Link resources, quality and availability

Application Performance Objectives

MPLS @Objectives

Optional IP Sec encryption on non-trusted networks


Branch

Encourage good practices through cost allocation based on usage and d li d fdelivered performance

Allocation per sites and B U

Real delivered quality

Weighted Business criticality

Departments Volume (Gbytes) Criticality Index AQS/MOS Index (K€)

Fi 4 351 0 55 0 88 283

and B.U. qualityBusiness criticality

Finances 4 351 0,55 0,88 283Sales & Marketing 1 211 0,43 0,92 64R&D 5 933 0,28 0,77 173Manufacturing Europe 18 285 0,32 0,93 736Manufacturing RoW 23 335 0,40 0,92 1 154

Common services 17 733 0,72 0,69 1 190

Total 70 848 0,46 0,85 3 600

Regions Volume (Gbytes) Criticality Index AQS/MOS Index (K€)

Asia 22 412 0,51 0,91 1 296Europe 25 603 0,54 0,74 1 269North America 22 832 0,40 0,91 1 035

Total 70 848 0,46 0,85 3 600


Ipanema – the Advanced WAN Optimization SystemIpanema the Advanced WAN Optimization System

Align the network with business goalsNetwork Application Governance

ControlVisibility

Automate A t i Guarantee

Accelerate

Optimization

Acceleration

Automate global

operations

Autonomic System

Scalable Service Delivery


Deploy scalable servicesy

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How taking a strategic approach to WAN optimization supports application delivery

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