Introduction to

Wan Acceleration Devices

Rishabh DangwalAbout me:Trivia geek, redbull addict & Independent security enthusiastic.

Currently employed at Orange Business Serviceswww.theprohack.com

Agenda The Elephant & the mice

Spoke end issues

Wan Acceleration

Wan Optimization

The Techniques

Lets talk about.. A mice..& An Elephant

(I am not kidding..)

A *Closer* look ..

Short-live TCP connections <1 sec Causes timeouts (due to

3WHS)

Long lived TCP connections >1 hour Consistent, but take huge

network resource

Issues at Spoke End Application performance

Bandwidth choking Latency/jitter/chatty applications

Complex Infra Different types of servers Storage

Data Security? Compliances ?

Issues at Spoke End continued..

QOS ? Reactive measure Almost useless in solving congestion issues

Increase Bandwidth ? Is not a solution

Rise of hybrid networks.

WAN Acceleration?

Techniques for increasing data-transfer efficiency across WAN

At core is WAN Caching

Maturing at a good rate

WAN Acceleration continued..

Kick in Wan accelerators & we have got –

Less local servers

Achieve LAN Level app performance

Centralize

Converge

Preserve services

Wan Optimization Traditional Wan Optimization

Results Changes header info Applications break, services may not work *Extra* integration required Moooore downtime

Image credits : Cisco

Wan Optimization Continued..

Latest Deployment

Results NO header changed*

NO app misbehavior*

Data Offloading Less headaches

*till the time your connectivity is stableImage Credits : Cisco

The Techniques

Selective Acknowledgement

Window Scaling, Protocol matching

Latency Mitigation

Reduce Data Redundancy

The Techniques continued..

Pattern Matching

Fingerprinting & Reconstruction

Load Shedding

Chunk Storing

& much *much* more..

Bottomline• Is one of the next big things

• Need of hour in complex hybrid networks

• BigData over WAN?

Questions ?

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