1. Sitara QoSworks www.sitaranetworks-korea.co.kr

2. General 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.

3. Why QoS? e-Business capability is now an essential corporate initiativee-Business capability is now an essential corporate initiative Network performance is critical for successful e-Business performanceNetwork performance is critical for successful e-Business performance –Although bandwidth is getting cheaper and technical innovation has provided new performance heights, new and diverse applications increase demands on the network

4. WAN Challenges Distribute applications to remote usersDistribute applications to remote users –Use the same applications across the global enterprise Maintain consistent performance for critical applicationsMaintain consistent performance for critical applications –Keep remote users productive –Keep performance up while allowing new capabilities Manage wide-area costs proactivelyManage wide-area costs proactively –Make the most effective use of existing capacity –Postpone costly expansion

5. Bandwidth Requirements High Low LowHigh Latency Sensitivity Text e-mail E-commerce ERP Voice Terminal Mode Transactions Internet/intranet E-mail with Attachments Streaming Video Video Conferencing Different Applications and Network Requirements The Challenge of Today’s Corporate Networks:

6. 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...

7. WAN Today ’ s Networks Internet V oice Corporate HQ ERP email Critical application performance suffers Web traffic clutters the WAN Latency and jitter degrade voice and video performance Remote Offices

8. Better Tools Are Required MonitoringMonitoring –Need to determine existing traffic mix Traffic managementTraffic management –Prioritize critical traffic and reduce loads Reduced operating expenseReduced operating expense –Minimize staff expenses

9. Router LAN Clients WAN QoSWorks Integration

10. QoSWorks at Work QoSWorks at Work –Prioritize Critical Traffic ERP traffic put at high priorityERP traffic put at high priority Web and TN3270 traffic going to IBM systems put at high priorityWeb and TN3270 traffic going to IBM systems put at high priority Keeps response times low!Keeps response times low! –Allocate 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 Cache All web traffic passes through the cache to reduce trafficAll web traffic passes through the cache to reduce traffic Improves response time for cached objectsImproves response time for cached objects

11. Benefits Dynamically deploys the right tool for the right application type, enabling new e-business and legacy applications to coexist on the same networkDynamically deploys the right tool for the right application type, enabling new e-business and legacy applications to coexist on the same network Ensures business-critical application performanceEnsures business-critical application performance Increases network efficiencyIncreases network efficiency Puts network managers in control of the networkPuts network managers in control of the network Integrated approach means fewer devices, lower deployment, maintenance, and training costs.Integrated approach means fewer devices, lower deployment, maintenance, and training costs.

12. Huge Market Opportunity High growthHigh growth –123%+ this year - even without factoring in policy management, SLA management, monitoring, and reporting figures QoSWorksQoSWorks –Sits at the confluence of hot trends –Leapfrogs competition at the high growth stage of the market

13. Failsafe Data Flow Hardware Software WANLAN 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) Transparent Bridge LED off (no power!)

14. Network management system SNMPSNMP –Ethernet interface MIB II –HP openview Save & Restore ConfigurationsSave & Restore Configurations Web, CLI, Telnet accessWeb, CLI, Telnet access

15. QoSWorks Model 2GB2GB 2GB Cache 100M 45M 10M 2.048M 384K 64K Throug hput Model 10000 Model 9000 Model 8000 Model 7000 Model 5000 Model 3000 QoSarray with Giga bit, 100B-T QoS director 2GB

16. Qos - The whole picture Monitor Set Policy Enforce Reports

17. Monitor Traffic

18. Set Policy Application 보장 /Busty 보장 /Busty Link speed512K/ Default 50K/ 50K 50K/ 50K 시세 80K/100K 40K/ 80K UDP data 40K/ 60K 30K/ 50K VoIP 120K/120K120K/120K Internet 40K/300K 200K/400K 관리업무 50K/ 80K 40K/ 60K Lotus notes 50K/120K 30K/ 60K 업무시간 업무 이외시간 07:00 – 19:00 19:00 – 07:00

19. Policy

20. Report