1. Parenting for Success Rui DU durui@digitalchina.com

2. Company Overview Why DCN Case Studies 01 02 03 Agenda

3. Company Overview

4. Mission Company Overview DCN’s mission is to achieve excellent worldwide Ethernet solution provider by providing global customers with a full range of networking products and solutions.

5. 1: 2000 Split from Lenovo Group Lenovo Digital China 2: 2001 IPO in HK Stock Market 861HK Date by 01/05/2011 57.14%13.64% 5.52% 5.13% 18.56% Public Hony Capital KIL Lenovo Holding SAIF Partners DCN Profile Company Overview

6. 71% average annual benefits growth 24% average annual revenue growth Market Position in China Market: Leading in Top Market Enterprise Market No.1 No.1 in Government No.2 in Finance No.4 in Tele-com Source: IDC SP 2010 Market Achievements Company Overview Revenue : 75 Millions USD in 2009, 85 Millions USD in 2010 Growth: Healthy and rapid growth in both revenue and benefits Overseas revenue year on year growth rate is over 200%

7. Human Resources Company Overview R&D 55% Supply Chain 10%Administration 5%Sales/Marketing 30% 1 ， 000 highly trained employees Sales/Marketing R&D Supply Chain Administration 30% 55% 10% 5%

8. Quality control oriented product delivery In-depth understanding and satisfaction of customers’ quality requirements Quality culture oriented for supply chain and factories Quality Control oriented Company Overview

9. Global Presence Company Overview 6 Sales Areas: Great China, EMEA, Russia, India, Southeast Asia and America Representative offices in Frankfurt in Europe, Moscow in Russia, Bangalore in India, Singapore in Asia Pacific India Russia Mexico Hong Kong Germany DCN (Headquarters) Beijing DCN Financial Centre Singapore

10. Why DCN

11. GE L3 Switch( Copper) GE L2 Switch Chassis Switch DCRS-7604DCRS-7608DCRS-9808DCRS-9816 FE L3 Switch Network Management System Link Manager NM FE L2 Switch DCS-3650-26C/DC/PoE DCS-4500-26TDCS-4500-26T-PoEDCS-4500-50T DCS-4500-24T(V2) DCRS-5650-28C DCRS-5650-52C DCRS-5200-28 DCRS-5200-52 DCRS-5950-24DCRS-5950-26 DCRS-5960-28T/28T-DC/PoE DCRS-5980-28T-DC/PoE DCS-3650-8C/DC/PoE DCS-3650-16T DCRS-5980-52T-DC/PoE DCRS-5960-28F GE L3 Switch( Fiber) DCRS-5960-52T/52T-DC/PoE DCRS-5950-28T DCRS-5950-52T DCRS-5960-52F DCNOS INSIDE DCRS-5750-28T/28T-DC/PoE DCRS-5750-52T/52T-DC/PoE DCS-3950-26CDCS-3950-28CDCS-3950-52CDCS-3950-28CT-PoE DCS-3650-16C DCS-3650-24T DCS-3650-8T Full Range Product Line Why DCN

12. 100G platform chassis switc 100GE Platform Chassis Switch Why DCN 10G L3 Switch IPv4/IPv6 MPLS L2/L3 QoS DCRS9800 Core Routing switch DCRS7600 Core Routing switch MRPP RIPv1/V2 OSPFv2 BGPv4 MVR 24*GE SFP4*10G XFP24*10G SFP+ 24*GE 24*GE SFP4*10G XFP48*GE SFP 7604-M1XFP12GX12GB HA 48*GE 7604-M4GX24TX7604-M1XFP12GX12GB PIM-SM/DM IPv4/IPv6 MPLS L2/L3 QoSMRPP RIPv1/V2 OSPFv2 BGPv4 MVR HAPIM-SM/DM

13. Layer3+ 10GE Switch Why DCN DCRS5980 10G Routing switch IPv4/IPv6 MPLS L2/L3 QoSMRPP RIPv1/V2 OSPFv2 BGPv4 MVR AC+DCPIM-SM/DM 10G Advance MPLS Enhanced Stack Switch 20(or 44)*10/100/1000Base-T+ 4*GE Combo+2*Slots /most 4*10GE DCRS5960 10G Routing switch 10G Advance Stack Switch 20(or 44)*10/100/1000Base-T+ 4*GE Combo+2*Slots /most 4*10GE IPv4/IPv6 MPLS QoSMRPP RIPv1/V2 OSPFv2 BGPv4 MVR AC+DCPIM-SM/DM PoE 10G Advance Full GB Fiber Switch 16(or 44)*GB SFP slots+ 8*GE Combo+2*Slots /most 4*10G XFP

14. Layer3 10GE Switch Why DCN DCRS5950 10G Routing switch IPv4/IPv6 QoSMRPP RIPv1/V2 OSPFv2 BGPv4 10G IPv6 Routing Fiber Switch 24*1000Base-X （ SFP ）＋ 8*GB Combo(SFP/GT)+ 2*10G XFP** DCRS5750 10G Routing switch 10G Advance Full GB Fiber Switch 22 (or 44)*GB SFP slots+ 4*GE Combo+ 4*10G XFP IPv4/IPv6 MRPP RIPv1/V2 Basic Routing PoE AC+DC 10G IPv6 Routing Stack Switch 24 (0r 48)*10/100/1000Base-T ＋ 4*GB Combo+4*10GE 10G Switch 20(or 44)*10/100/1000Base-T+ 4*GE Combo+4*10GE

15. Layer2 GE/FE Switch Why DCN DCS 3950 FE Switch 24*FE +2*GE Combo 24*FE+2*GE Combo+2*GT 48*FE +4*GE Combo 24*FE +4*GE Combo DCS-3950-26C DCS-3950-28CT-PoE DCS-3950-28C DCS-3950-52C DCS3650 FE Switch DCS-3650-26C DCS-3650-24 DCS-3650-16C 8*FE +(1 /2 GE Combo) 24*FE +2*GE Combo 16*FE +1*GE Combo DCS-3650-26C-PoE DCS-3650-8C DCS-3650-10C 24*FE DCS4500 GE Switch IPv4/IPv6 QoSSecurity Full Gigabit Intelligent L2 Aggregation Switch 26(or50)*10/100/1000Base-T+4* GB SFP(Combo) PoE QinQ

16. IPv4/v6 Security Networks 802.1X Equipments sFlow CPU filter DHCP snooping option82 URPF ICMP limited Firmware backup AM and Strong ACL MAC-binding MPLS P ： BGP 、 LDP PE ： LDP 、 MPBGP 、 RT/RD ACL 、 EXP QOS CE ： VRF 、 OSPF Multicast  DVMRP  PIM-DM  PIM-SM  PIM-SSM  PIM-DM FOR IPV6  PIM-SM FOR IPV6  IPV4 multicast over IPV6 tunnel  Multicast source detect  Multicast controlled received  IGMPv1  IGMPv2  IGMPv3  IGMP v1 Snooping  IGMP v2 Snooping  IGMP v3 Snooping  MLD v1  MLD v2  MLD v1 Snooping  MLD v2 Snooping  MVR for ipv4 and ipv6  IGMP Proxy DCNOS HA LACP(802.3AD) STP/RSTP/MSTP VRRP VRRP v3 ECMP PBR ISP1ISP2 MRPP Link trunk OSPF Technology Advantages: DCNOS Why DCN

17. Technology Advantages: IPv6 Why DCN

18. Multi-layer Ring Protection Protocol Min 50ms Ring refresh Ethernet based ring protocol Real time state detect Auto refresh Master Node Master portSlave port Transit Node Hello packets Sent LINK-DOWN Sent Flush √ Enhanced Multiple VLAN subnet Traffic Engineering MVTE Min 50ms refresh time （ ULPP+ULSM ） Traffic Load balance Redundancy V 41-60 V 41-80 V 1-40 V 1-20 V 21-40 V 61-80 V 1-80 SW ASW BSW C Master Slave ULPP ULSM Technology Advantages: 50ms Protection Why DCN EMVTE MRPP

19. Service Management System: 5 Regional Service Team from Oversea Market Dept. Product Management Dept. After-Sales Service Dept. Testing Dept. and R&D Dept. Key Partner/ Key Customer Contact window: 7*24 hotline, IM etc EU Office Agency Key Customer/Key Partner contact window Service management system Customer service hotline OEM partner Service Support Team Service quality control system Users Professional Service With Quick Response Why DCN Users Partners OEM Users

20. Agility, Adaptability, Alignment (3A) supply chain management ensures a quick response to market requirements with high quality and low cost Worldwide logistic platform, with hubs established in Frankfurt, Beijing, Hongkong and Shenzhen AAA Supply Chain Management Why DCN

21. Case Studies

22. RENMIN University IPv6 Network Case Studies China Devices deployed:DCRS7608 DCRS7604 and DCS4500 No1 IPv6 Network in China More than 10,000 Access CERNET2 Campus IPv4 Network DCRS7604 DCRS7608 DCS4500 DCRS5950 IPv6 NMS IPv6 Server

23. Devices deployed:DCRS5950F and DCS3950 The project covers one city of 5,000 homes DCN MRPP and Ring technique ensure high reliability and expandability, providing IPTV, VoIP and Internet access Russia FTTx in Russia Case Studies MRPP 5950-26 Backbone Network DCS 3950-28C

24. Netherlands Enterprise User Case Studies Devices deployed:DCRS7608 and DCRS5750 High reliability, each L2 Switch dual-homed to the backbone switches for redundancy MSTP runs between the backbone switches and Layer 2 switches Fully interoperable with existing standard-based devices Netherlands NMS F/W Cisco Router DCRS5750 DCRS7608 Server Farm High Speed Network Offices

25. Thanks!