Sitara QoSworksSitara QoSworks

www.sitaranetworks-korea.co.krwww.sitaranetworks-korea.co.kr

General tech on the IP networkGeneral tech on the IP network

•고속의 ATM/FR switch 를 이용한 별도 Subnet 구성을 위한 여러 개의 PVC 생성 . 마치 Virtual circuit 을 이용한 TDM 개념 도입으로 회선 효율을 배제한 Application 보호 . ( 고가의 Operation cost 와 전체적인 회선효율 저하 초래 .)

•여러 대의 Router 구성 또는 회선의 다중화로 Traffic 의 물리적 분리 .

•사용 회선의 무한적 속도 Upgrade.

Why QoS?Why QoS?

• e-Business capability is now an e-Business capability is now an essential corporate initiativeessential corporate initiative

• Network performance is critical for Network performance is critical for successful e-Business performancesuccessful e-Business performance

– Although bandwidth is getting cheaper and Although bandwidth is getting cheaper and technical innovation has provided new technical innovation has provided new performance heights, new and diverse performance heights, new and diverse applications increase demands on the networkapplications increase demands on the network

WAN ChallengesWAN Challenges

• Distribute applications to remote usersDistribute applications to remote users

– Use the same applications across the global enterpriseUse the same applications across the global enterprise

• Maintain consistent performance for critical Maintain consistent performance for critical applicationsapplications

– Keep remote users productiveKeep remote users productive

– Keep performance up while allowing new capabilitiesKeep performance up while allowing new capabilities

• Manage wide-area costs proactivelyManage wide-area costs proactively

– Make the most effective use of existing capacityMake the most effective use of existing capacity

– Postpone costly expansionPostpone costly expansion

Ban

dw

idth

B

and

wid

th

Req

uir

emen

tsR

equ

irem

ents

HighHigh

LowLow

LowLow HighHighLatency SensitivityLatency Sensitivity

Text Text e-mail e-mail

E-commerceE-commerceERPERP

VoiceVoice

TerminalTerminal ModeMode

TransactionsTransactions

Internet/Internet/intranetintranet

E-mail with E-mail with AttachmentsAttachments

Streaming Streaming VideoVideo Video Video

ConferencingConferencing

Different Applications and Network RequirementsDifferent Applications and Network Requirements

The Challenge of Today’s The Challenge of Today’s Corporate Networks:Corporate Networks:

Corporate HQ

Remote Offices

WAN

•Fewer applications with predictable behavior and similar network requirements

•Applications coexist with a high quality of service (QoS)

In the Old Days...In the Old Days...

WAN

Today’s NetworksToday’s Networks

Internet

VVoiceoice

Corporate HQERPERP emailemail

•Critical application performance suffers

•Web traffic clutters the WAN

•Latency and jitter degrade voice and video performance

Remote Offices

Better Tools Are RequiredBetter Tools Are Required

• MonitoringMonitoring

– Need to determine existing traffic mixNeed to determine existing traffic mix

• Traffic managementTraffic management

– Prioritize critical traffic and reduce loadsPrioritize critical traffic and reduce loads

• Reduced operating expenseReduced operating expense

– Minimize staff expensesMinimize staff expenses

Router

LAN Clients

WAN

QoSWorksQoSWorks Integration Integration

Console

W AN LAN

Pow er

QoSWorksQoSWorks at Work at Work– Prioritize Critical TrafficPrioritize Critical Traffic

• ERP traffic put at high priorityERP traffic put at high priority

• Web and TN3270 traffic going to IBM systems put at Web and TN3270 traffic going to IBM systems put at high priorityhigh priority

• Keeps response times low!Keeps response times low!

– Allocate Available BandwidthAllocate Available Bandwidth

• Mail servers not squeezed out, but don’t dominateMail servers not squeezed out, but don’t dominate

• External web traffic allowed when there is roomExternal web traffic allowed when there is room

– Reduce Traffic with Smart CacheReduce Traffic with Smart Cache

• All web traffic passes through the cache to reduce All web traffic passes through the cache to reduce traffictraffic

• Improves response time for cached objectsImproves response time for cached objects

BenefitsBenefits• Dynamically deploys the right tool for Dynamically deploys the right tool for

the right application type, enabling new the right application type, enabling new e-business and legacy applications to e-business and legacy applications to coexist on the same networkcoexist on the same network

• Ensures business-critical application Ensures business-critical application performanceperformance

• Increases network efficiencyIncreases network efficiency

• Puts network managers in control of the Puts network managers in control of the networknetwork

• Integrated approach means fewer devices, Integrated approach means fewer devices, lower deployment, maintenance, and lower deployment, maintenance, and training costs.training costs.

Huge Huge MarketMarket Opportunity Opportunity

• High growthHigh growth

– 123%+ this year - even 123%+ this year - even without factoring in policy without factoring in policy management, SLA management, SLA management, monitoring, management, monitoring, and reporting figuresand reporting figures

• QoSWorksQoSWorks

– Sits at the confluence of Sits at the confluence of hot trendshot trends

– Leapfrogs competition at Leapfrogs competition at the high growth stage of the high growth stage of the marketthe market

$0

$500

$1,000

$1,500

$2,000

$2,500

$3,000

'98 '99 '00 '01 '02

Year

Re

ven

ue

(M

illio

ns

) Bandw idthManagement

Caching

Failsafe Data Flow Failsafe Data Flow

Hardware

Software

WAN LAN

Classifier, redirector to proxy

and scheduler

Power off bypass

Passive mode - via repeater

Active - no policies

Active - policies in force

LED Red (failure)

LED Green (active)

LED Green (active)

Transparent Bridge

LED off (no power!)

Network management systemNetwork management system

• SNMPSNMP

– Ethernet interface MIB IIEthernet interface MIB II

– HP openviewHP openview

• Save & Restore ConfigurationsSave & Restore Configurations

• Web , CLI , Telnet accessWeb , CLI , Telnet access

QoSWorksQoSWorks ModelModel

2GB2GB2GB2GB22GBGB22GBGB22GBGBCacheCache

100100MM4545MM1010MM2.0482.048MM384384KK6464KKThrougThroughputhput

Model Model 1000010000

Model Model 90009000

Model Model 80008000

Model Model 70007000

Model Model 50005000

Model Model 30003000

QoSarray with Giga bit , 100B-TQoS director

2GB2GB

Qos - The whole pictureQos - The whole picture

Monitor

Set Policy

Enforce

Reports

Monitor TrafficMonitor Traffic

Set PolicySet Policy

Application 보장 /Busty 보장 /Busty Link speed 512K/ Default 50K/ 50K 50K/ 50K 시세 80K/100K 40K/ 80K UDP data 40K/ 60K 30K/ 50K VoIP 120K/120K 120K/120K Internet 40K/300K 200K/400K 관리업무 50K/ 80K 40K/ 60K Lotus notes 50K/120K 30K/ 60K

업무시간 업무 이외시간07:00 – 19:00 19:00 – 07:00

PolicyPolicy

ReportReport