Sales Guide for DES-3810 Series Apr 2010 D-Link HQ

D-Link Confidential Agenda Product Introduction Positioning Overview Product Overview Target Market Competitive Comparison & Analysis Positioning Highlight Key Comparison Art of the War Technology Briefing

D-Link Confidential Campus / Enterprise Telecom / Metro DES-3028/52 Series L3 L2 DES-3528/52 Series DES-3200 Series DES-3800 Series DES-3810 Series Positioning Overview D-Link Fast Ethernet Managed Switch Product Portfolio Next Generation Next Generation

D-Link Confidential Product Overview Position Highlights L3 Fast Ethernet enterprise/metro solution More powerful metro features than existing DES-3800 series Ideal for entry level enterprise, midmarket, branch office and metro access Delivers high availability, security and reliability Advanced QoS, multicast and L2 VPN features guarantee the performance for triple play service and ISP Service Level Agreement (SLA) Rich AAA, access control features help administrators well-manage the visitors of the networks Powerful L3 routing protocols and L2 VPN functions make it suitable for the business gateway / ISP access Fully IPv6 support, future proven Switch Resource Management (SRM) function helps users optimize the system resource for different environment Various attack prevention features and redundancy protocols Power saving features save your money, save the earth.

D-Link Confidential Product Models Software Images Product Overview Model Overview 24 port 10/100Base-TX + 4 Combo 1000Base-T/SFP DES port 10/100Base-TX + 2 Combo 1000Base-T/SFP + 2 SFP DES ??? For Enterprise, Campus, Hospitality L2/L3 features, Routing, Multicasting, Security, QoS, AAA, OAM Standard Image (SI) For Telecom, IPv6 networks All SI features, VPWS, BGP, IPv6 routing, SRM Enhanced Image (EI) Q2’11

D-Link Confidential Product Overview High Flexibility Uplink ports DES supports 4 combo GE/SFP ports; DES supports 2 SFP + 4 combo GE/SFP ports 4 SFP ports provides the ability of 2G aggregation ring or mixed ring/chain topology GE copper ports provide cost-effective cat.5 uplinks to core switches Aggregation Ring Remote District Rack / Wiring Closet 1G Fiber 1G Copper

D-Link Confidential Product Overview Port Comparison CompetitorPort CountRemark D-Link DES FE + 4 Combo GE/SFP HP FE + 4 Combo GE/SFPLess supported client ports 3Com 5500-EI-2824 FE + 4 SFP Requires expensive fiber & transceivers for uplink in the cabinet H3C S P-SI/EI H3C S TP-SI H3C S P H3C S TP 24 FE + 4 SFP 24 FE + 2 GE + 2 SFP 24 FE + 4 SFP 24 FE + 2 GE + 2 SFP Huawei S3328TP-SI/EI24 FE + 2 SFP + 2 Combo GE/SFP Cisco TS Cisco 3750-Metro 24 FE + 2 SFP 24 FE + 2 SFP + 2ES Requires expensive fiber transceivers for uplink in the cabinet D-Link DES FE + 2 SFP + 2 Combo GE/SFP HP FE + 4 Combo GE/SFPLess supported client ports 3Com 5500-EI-5248 FE + 4 SFP Requires expensive fiber transceivers for uplinks in the cabinet H3C S P-SI/EI H3C S P 48 FE + 4 SFP Requires expensive fiber transceivers for uplinks in the cabinet Huawei S3352TP-SI/EI48 FE + 4 SFP Requires expensive fiber transceivers for uplinks in the cabinet Cisco TS48 FE + 4 SFP Requires expensive fiber transceivers for uplinks in the cabinet

D-Link Confidential Target Applications Enterprise Access/Aggregation DES-3810 Stack DES-3810 ECMP & PBR provides redundant/load sharing capability of uplink. IMPB, ARP Spoofing Prevention, DHCP Server Screening, BPDU Attack Protection, and L3 Control Packet Filtering expel threats out of core networks. MAC, WAC, and Compound authentication provide clientless/easy-to-deploy mechanisms to authenticate users and devices. Embedded DHCP server, auto-configuration, and trap/ alerts make the network management much easier. Data Center

D-Link Confidential Target Applications Telecom Access of Enterprises VPWS Tunnel Tunnel VPWS ISP MPLS Core DES-3810 HQ Branch GVRP STP VLAN QiQ & L2PT GVRP STP VLAN GVRP STP VLAN ETTB CPE for business subscribers Up to 4 GE FTTB interfaces providing higher bandwidth to customers and fault tolerance capability Provides L2 transparency to customers through the ISP network Y.1731, 802.1ag/3ah Ethernet OAM improves the efficiency of ISP network management

D-Link Confidential Target Applications Enterprise Routers for Remote Sites Internet DES-3810 HQ Branch RIP OSPF Larger routing table provides the capability for a large-scale enterprise Border Gateway Protocol (BGP) allows central routing management of all remote sites regardless of physical connections CPE RIP OSPF BGP RIP OSPF BGP VPN

D-Link Confidential Agenda Product Introduction Positioning Overview Product Overview Target Market Competitive Comparison & Analysis Positioning Highlight Key Comparison Art of the War Technology Briefing

D-Link Confidential Price Performance DES-3810 Huawei S3300 Complete supported models Support IS-IS Only 2 SFP ports for all models No WAC No Gratuitous ARP No Web UI Strength Weakness Position Highlight Enterprise/Campus/Hospitality Networks H3C S3600 (HP A3600, E5500) HP 3500 Cisco 3750 Only 20 or 44 FE ports No stacking No ERPS No Private VLAN No PBR No Round-robin Scheduling No IPv6 routing protocol No BGP No CPU protection function No Web UI Complete supported models Very large flash memory 64K MAC Addresses Complete supported models No copper GE port for 48 port models No ERPS No Private VLAN No IPv6 management No IPv6 routing protocol No BGP No CPU protection function No WAC No Embedded Web UI Complete supported models 32G stacking bandwidth Support IS-IS Only 2G uplink for 24 port for models Very small MAC table No ERPS No Gratuitous ARP No CPU protection function Limited Web UI functions Note: Compare according to: DES-3810 EI, S3300 EI, S3600 EI and 3750 IP Services image

D-Link Confidential Key Comparison FeatureDES HP H3C S TP (HP A3600, E5500) Huawei S3328TPCisco TS Port Configuration 24 FE + 4 Combo GE/SFP 20 FE + 4 Combo GE/SFP 24 FE + 2 GE + 2 Combo GE/SFP 24 FE + 2 SFP Stacking Yes (R3.00)NoYes ERPS YesNo Yes (RRPP)No Private VLAN YesNo Yes Policy-based Route YesNoYes Yes (Only IPv4) RIPng/OSPFv3 Yes (EI, R3.00)No Yes (EI)Yes (IP Service Lic.) BGP Yes (EI, R3.00)No Yes (EI)Yes (IP Service Lic.) Queue Scheduling SDWRR Shared Queue + SP WRR, WFQWRRSRR Safeguard Engine YesNo No (S3600/A3600) Yes (E5500) YesNo Web Access Control YesYes (Port-based)No Yes MAC Access Control YesYes (Port-based) Yes (Port-based, S3600/A3600) Yes (E5500) Yes (Port-based)Yes Web UI Yes Yes (Limited function) Yes (NMS required, S3600/A3600) Yes (E5500) No Yes (Only dashboard) List Price $1,515 (SI) $3,500 (EI) $2,449 $2,571 (SI) $3,571 (EI) $3,484 (SI) $4,400 (EI) $5,995 (IP Base Lic.) $9,990 (IP Service Lic) Reseller Price $1,812 $1,140 (SI) $1,500 (EI) $731 (SI) $924 (EI) $3,177 (IP Base Lic.) $5,295 (IP Service Lic)

D-Link Confidential Attacking Point Physical Interfaces 3500 has only 20 or 44 FE ports, less client ports. Stacking 3500 does not support stacking which makes management of access switch much complicated. Administrators have to manage all the access switch one-by-one. High Reliability 3500 does not support any mini-sec level ring protection protocol which is important for the reliability of campus backbone nowadays does not have any CPU protection function like Safeguard Engine or L3 Control Packet Filtering that makes the network exposed to un-predictable virus or worm attack from mobile users in intranet. When CPU is under attack, switch becomes inaccessible and administrators are not able to cut troubled traffic off remotely, which makes the damage bigger and worse. IPv6 IPv4 addresses are predicted to be exhausted by IPv6 routing protocols are necessary for L3 switches nowadays which HP 3500 does not support. Painless User Authentication HP 3500 supports only port based MAC and WAC. If there are multiple clients under the same port, there will be security breaches. Advanced Routing HP 3500 only supports basic RIP, OSPF without advanced routing features like PBR or BGP. Policy-based Route enhances the security and load sharing of L3 traffic. Making the expensive L3 investment more efficiency. BGP centralizes the L3 management of all remote sites, make management more easily and help reduce IT expense. Accurate QoS HP 3500 sets minimum bandwidth for each queue instead of queue scheduling mechanism. This will impact the flexibility and accuracy of QoS. Art of War Competition with HP 3500 Series ERPS BGP SDWRR

D-Link Confidential Defending Point 64K MAC addresses DES-3810 supports only 16K MAC address which is only ¼ of A L3 switch will only learn MAC addresses of routers’ and the nodes under its owned IP interfaces. Unless there are 64,000 nodes in the network and there is no proper IP subnet segmentation in the network, 64K MAC address table only wastes system resource and cost. Art of War Competition with HP 3500 Series (Continue) Myth/Truth Usage of flash memory HP claims they support 4MB on board flash and 128MB compact flash on 3500 series. Flash memory is used to store F/W and configuration files. The size of F/W files is the key to decide how many memory space a device needs. Generally speaking, flash memory size that allows to store 3~4 firmware files is enough for an enterprise switch. Large flash size does not increase the flexibility. DES-3810 F/W size is about 5MB, and HP 3500 is about 10MB. However, HP supports even less function than D-Link does. Attacking Point User Friendly HP provides limited functions and configurations on embedded Web UI. Switch embedded Web UI shall perform the same ability to other user interfaces. With completed configuration pages, Web UI can make the switch configuration more friendly. On the other hand, a completed Web UI support shall not need extra software and expense to customers. All D-Link Managed Switch support completed configuration on Web-UI Green HP 3500 does not support any green feature.

D-Link Confidential Attacking Point Physical Interfaces S3600 has no copper GE interface on 48 port version, making uplink among the cabinet very expensive. High Reliability S3600 does not support any mini-sec level ring protection protocol which is important for the reliability of campus backbone nowadays. S3600 does not have any CPU protection function like Safeguard Engine or L3 Control Packet Filtering that makes the network exposed to un-predictable virus or worm attack from mobile users in intranet. When CPU is under attack, switch becomes inaccessible and administrators are not able to cut troubled traffic off remotely, which makes the damage bigger and worse. IPv6 IPv4 addresses are predicted to be exhausted by 2011, IPv6 routing protocols are necessary for L3 switches nowadays which S3600 does not support.. Advanced Routing S3600 only supports basic RIP, OSPF without advanced routing features. BGP centralizes the L3 management of all remote sites, makes management more easily and help reduce IT expense. Painless User Authentication Clientless user authentication such as Web-based Auth or MAC-based Auth help reduce the effort of administrators to install/configure all the clients. H3C S3600 supports only port based MAC and no WAC support. If there are multiple clients under the same port or multiple users sharing one device, there will be security breaches. User Friendly S3600 does not have embedded Web UI. It requires external NMS (iMC) to support user-friendly graphic user interface. And it requires expense to customers. All D-Link Managed Switch support completed configuration on Web-UI Green H3C S3600 does not support any green feature. Art of War Competition with H3C S3600 Series ERPS BGP

D-Link Confidential Art of War Competition with H3C S3600 Series (Continue) Myth/Truth Limitation of Smart Link H3C claims the performance of Smart Link is good as ERPS. Smart Link is a function that provides mini-second recovery time for switch uplinks. When the major uplink port fails, it will switch to the backup uplink port immediately to prevent service interruption. SmarkLink only provides fast failover for uplink ports per device basis, it’s not a global redundant protocol for whole network link ERPS or STP. Defending Point WFQ DES-3810 supports Smoothed Deficit Weighted Round Robin (SDWRR) which is a similar schedule mechanism with WFQ. SDWRR

D-Link Confidential Attacking Point Physical Interfaces S3300 does not have copper GE interface on 48 port version, making uplink among the cabinet very expensive. Accurate QoS Huawei S3300 Series support only WRR scheduling mechanism which does not consider the packet size when doing queue round-robin. It will impact the accuracy of bandwidth allocation if the packet size of each queue is not balanced. Painless User Authentication Clientless user authentication such as Web-based Auth or MAC-based Auth help reduce the effort of administrators to install/configure all the clients. Huawei S3300 supports only port based MAC and no WAC support. If there are multiple clients under the same port or multiple users sharing one device, there will be security breaches. User Friendly S3300 does not support embedded Web UI for providing graphic and intuitional switch configurations. Web UI makes configuration more easier especially for entry-level users or large cabinets with multi-vendor devices. All D-Link Managed Switch support completed configuration on Web-UI Green S3300 does not support any green feature. Art of War Competition with Huawei S3300 Series Defending Point IS-IS OSPF, as an Interior Gateway Protocol (IGP), is more popular and mature than IS-IS. For medium-to-large size network such as campus, enterprise or government, OSPF is the best choice. SDWRR

D-Link Confidential Art of War Competition with Huawei S3300 Series (Continue) Myth/Truth Sales talk of 10G stacking bandwidth Huawei claims that S3300 supports up to 10G stacking bandwidth, however, there is no any 10G port or dedicated stacking port on S3300! S3300 supports 9 switches per stack. If stacking with ring topology, there will be 10x1G cables. So that the true stacking bandwidth should be 1G.

D-Link Confidential Attacking Point Physical Interfaces 3750 does not have copper GE interface on both 24 and 48 port version, making uplink among the cabinet very expensive. High Reliability 3750 does not support any mini-sec level ring protection protocol which is important for the reliability of campus backbone nowadays does not have any CPU protection function like Safeguard Engine or L3 Control Packet Filtering that makes the network exposed to un-predictable virus or worm attack from mobile users in intranet. When CPU is under attack, switch becomes inaccessible and administrators are not possible to cut troubled traffic off remotely which makes the damage bigger and worse. User Friendly Web UI embedded in Cisco switches supports only dashboard monitoring. Switch embedded Web UI shall perform the same ability to other user interfaces. With completed configuration pages, Web UI can make the switch configuration more friendly. In the other hand, a completed Web UI support shall not need extra software and expense to customers. Cost Effective By default, Cisco 3750 embedded with IP Base Image which has only L2+ feature set, the MSRP is $5,995 already. To enable completed L3 features, such as OSPF, BGP, & PIM, requires IP Service Image. The MSRP is $9,990. Art of War Competition with Cisco 3750 Series ERPS Defending Point IS-IS OSPF, an Interior Gateway Protocol (IGP), is more popular and mature than IS-IS. For medium-to-large size network such as campus, enterprise or government, OSPF is the best choice. 32G stacking bandwidth Cisco 3750 has 2 dedicated 32G Stackwise ports on each device. But the maximum data rate on the 48 port version is only 4.8G. That means rest of the bandwidth are wasted.

D-Link Confidential Price Performance DES-3810 Cisco 3750 Metro Huawei S3300 H3C S3610 (HP A3610) Complete supported models Very aggressive when bidding Support IS-IS Completed model support Support IS-IS No MPLS VPN features No mini-sec ring protection No OAM No flow collection features No green features No MPLS VPN features No OAM No flow collection features No green features Limited MPLS support on ES port Unreasonable price for advanced routing and MPLS No flow collection features No green features Strength Weakness Position Highlight Metro Networks Note: Compare according to: DES-3810 EI, S3300 EI and 3750 Metro Advanced IP Services image Support IS-IS

D-Link Confidential Key Comparison FeatureDES H3C S TP (HP A3610) Huawei S3328TPCisco 3750 Metro Port Configuration24 FE + 4 Combo GE/SFP 24 FE + 2 GE + 2 Combo GE/SFP 24 FE + 2 SFP + 2 SFP ES ERPSYesNo (Smart Link Only)Yes (RRPP)Yes (REP) Host-based IGMP/MLD Snooping Fast Leave YesNo MPLS VPNYes (VPWS) (EI, R3.00)No Yes (MPLS, Adv IP Lic) sFlowYesNo SRMYes (EI, R3.00)No Yes (SDM) 802.3ah/802.1ag OAMYesNoYes Y.1731 CCMYes (R3.00)No Power SavingYesNo List Price $1,515 (SI) $3,500 (EI) $4,829 (EI) Note 1 $3,484 (SI) $4,400 (EI) $5,995 (Device) $3,000 (IP Service Lic) $7,000 (Adv IP Lic) Reseller Price $2,028 (EI) Note 1, 2 $731 (SI) $924 (EI) $4,436 (Device) $2,200 (IP Service Lic) $5,180 (Adv IP Lic) Note1: SI version is no longer on price book. Note2: Reseller price on price book. Real price should be lower but shouldn’t be lower than Huawei

D-Link Confidential Attacking Point Physical Interfaces S3610 does not have copper GE interface on 48 port version, making uplink among the cabinet very expensive. High Reliability S3610 does not support any mini-sec level ring protection protocol which is important for the reliability of telecom access/aggregation nowadays. Future Proved IPTV Service Propose multiple IPTV channels in single port to ISPs. This solution requires DHCP (relay) option 60/61, host-based IGMP (snooping), flow-based bandwidth control/CIR, traffic shaping to guarantee the services quality. However, S3610 do not support all these features. Role of MPLS PE S3610 can only be CE of MPLS environment. It does not have the ability to build up VPN tunnels. Improving the Management Efficiency S3610 does not have any OAM protocol or flow collection functions (sFlow or IPFIX). Strong OAM support is a trend in ISP that help administrators manage the links or service in the network. Initiative flow collection such as sFlow or IPFIX helps ISP monitor, analyze and locate the abnormal traffic in real-time. Administrators can minimize the damage by taking immediate action for those troubled traffic. Green H3C S3610 does not support any green features. Art of War Competition with H3C S3610 Series ERPS DHCP Relay Options Host-based IGMP Bandwidth Control Traffic Shaping VPWS Y.1731 OAM

D-Link Confidential Art of War Competition with H3C S3600 Series (Continue) Myth/Truth Limitation of Smart Link H3C claims the performance of Smart Link is good as ERPS. Smart Link is a function that provides mini-second recovery time for switch uplinks. When the major uplink port fails, it will switch to the backup uplink port immediately to prevent service interruption. SmarkLink only provides fast failover for uplink ports per device basis, it’s not a global redundant protocol for whole network link ERPS or STP. L2 & L3 MPLS VPN The Virtual Routing Forwarding (VRF) function makes S3610 possible to be the MCE of L3 MPLS environment which shares the loading of PE. However, without LDP support, S3610 cannot be the PE of MPLS environment. VRF is not a necessary feature to Virtual Private Wire Service (VPWS). With VPWS function, DES-3810 can be the PE of MPLS environment directly. Since VPWS is using LDP forwarding as well, it is still compatible with existing ISP MPLS core network. Defending Point WFQ DES-3810 supports Smoothed Deficit Weighted Round Robin (SDWRR) which is a similar schedule mechanism with WFQ. IS-IS OSPF, as an Interior Gateway Protocol (IGP), is more popular and mature than IS-IS. OSPF is more suitable for medium-to-large size network. SDWRR VPWS

D-Link Confidential Attacking Point Physical Interfaces S3300 does not have copper GE interface on 48 port version, making uplink among the cabinet very expensive. Future Proved IPTV Service Propose multiple IPTV channel in single port to ISPs. This solution requires DHCP (relay) option 60/61, host-based IGMP (snooping), flow-based bandwidth control/CIR, traffic shaping to guarantee the services quality. However, S3300 do not support all these features. Role of MPLS PE S3300 can only be CE of MPLS environment, it does not have the ability to build up VPN tunnels. Improving the Management Efficiency S3300 supports only IEEE802.1ag/3ah OAM and has no flow collection function. Y.1731 is a super set of IEEE 802.1ag defined by International Telecommunication Union (ITU) providing more coverage of the demand of telecom applications. Initiative flow collection such as sFlow or IPFIX helps ISP monitor, analyze and locate the abnormal traffic in real-time. Administrators can minimize the damage by taking immediate action for those troubled traffic. Green S3300 do not support any green features. Art of War Competition with Huawei S3300 Series DHCP Relay Options Host-based IGMP Bandwidth Control Traffic Shaping VPWS Y.1731 Defending Point IS-IS OSPF, as an Interior Gateway Protocol (IGP), is more popular and mature than IS-IS. OSPF is more suitable for medium-to-large size network. OAM

D-Link Confidential Art of War Competition with Huawei S3300 Series (Continue) Myth/Truth L2 & L3 MPLS VPN The Virtual Routing Forwarding (VRF) function makes S3300 possible to be the MCE of L3 MPLS environment which shares the loading of PE. However, without LDP support, S3300 cannot be the PE of MPLS environment. VRF is not a necessary feature to Virtual Private Wire Service (VPWS). With VPWS function, DES-3810 can be the PE of MPLS environment directly. Since VPWS is using LDP forwarding as well, it still compatible with existing ISP MPLS core network. VPWS

D-Link Confidential Attacking Point Physical Interfaces Although there are 4 fiber ports on 3750 Metro, advanced metro features such as VLAN translation, MPLS, CBWFQ, RED… can only supported on 2 ES ports. Wirespeed Performance 3750 Metro does not support wired speed data forwarding. The packet forwarding rate is only 8.55mpps while wired speed should be 9.5mpps Future Proved IPTV Service Propose multiple IPTV channel in single port to ISPs. This solution requires DHCP (relay) option 60/61, host-based IGMP (snooping), flow-based bandwidth control/CIR, traffic shaping to guarantee the services quality. However, 3750 Metro do not support all these features. Improving the Management Efficiency 3750 Metro supports only IEEE802.1ag/3ah OAM and has no flow collection function. Strong OAM support is a trend in ISP that help administrators manage the links in the network. Initiative flow collection such as sFlow or IPFIX helps ISP monitor, analyze and locate the abnormal traffic in real-time. Administrators can minimize the damage by taking immediate action for those troubled traffic. Green Does not support any green features, neither Cisco EnergyWise. Art of War Competition with Cisco 3750 Metro DHCP Relay Options Host-based IGMP Bandwidth Control Traffic Shaping Y.1731 Defending Point WFQ DES-3810 supports Smoothed Deficit Weighted Round Robin (SDWRR) which is a similar schedule mechanism with WFQ. IS-IS OSPF, as an Interior Gateway Protocol (IGP), is more popular and mature than IS-IS. OSPF is more suitable for medium-to-large size network. SDWRR OAM

D-Link Confidential Art of War Competition with Cisco 3750 Metro (Continue) Myth/Truth L2 & L3 MPLS VPN 3750 Metro supports many MPLS features such as VRF, LDP, FRR,… making it possible to be a PE of L3 MPLS environment. However, with Virtual Private Wire Service (VPWS), DES-3810 can also be the PE of L2 MPLS environment directly. Since VPWS is using LDP forwarding as well, it still compatible with existing ISP MPLS core network. VPWS

D-Link Confidential Agenda Product Introduction Positioning Overview Product Overview Target Market Competitive Comparison & Analysis Positioning Highlight Key Comparison Art of the War Technology Briefing

D-Link Confidential STPRSTPERPS Topology TypeAny Topology Ring / Multiple Ring Convergence Time30-50 seconds1 second ms! Technology Briefing Ethernet Ring Protection Switching (ERPS) First industry standard (ITU-T G.8032) on Ethernet ring protection switching Support interconnected ring or multiple rings application Best case: 50ms recovery time for 16-node ring with <1,200 Km circumference Aggregation Ring Access Ring Master Link Down! Disable Blocking

D-Link Confidential Single user/service per port, with bandwidth limit (Port Bandwidth Control) Multiple users/services per port, with bandwidth limit (Flow-based Bandwidth Control) Multiple users/services per port, with bandwidth limit and guaranteed bandwidth (Three Color Marker & Policing) Committed Information Rate (CIR): Guarantees the bandwidth of each service by limiting the bandwidth of each other. Peak Information Rate (PIR): Allows services take the unused bandwidth for better bandwidth usage. Traffic Policing: Drops or remarks the packet priority tag for traffic exceeding CIR. Doing best-effort forwarding when peak of each service are conflicted. Total UNI (User Network Interface) Bandwidth CIR PIR CIR PIR VoIP IPTV Data Technology Briefing Bandwidth Control & 3 Color Marker

D-Link Confidential To lower the packet lose rate, almost all switch controllers have built-in expensive buffer memory to prevent the data re-transmission. Switch stores the traffic in buffer memory and delays the transmission until the egress bandwidth is available. However, the best-effort traffic shaping is no longer enough for the QoS requirement nowadays. Store to buffer Time Data Max. Switching Capacity bps Buffer Memory Time Data bps Delay Forwarding Technology Briefing Traffic Shaping Delay Forwarding

D-Link Confidential To well manage the buffer resource, DES-3810 supports some advanced features: Reserve buffer memory for important services Configurable buffer size for each important service - Excess Burst Size (EBS) - Peak Burst Size (PBS) - Committed Burst Size (CBS) Store to PBS/EBS Store to CBS PIR/EIR CIR Guaranteed Forwarding PIR/EIR CIR Buffer Memory IPTV Data Time bps EBS for IPTV CBS for IPTV CBS for Data Guaranteed Forwarding Store to CBS Store to PBS/EBS Delay Forwarding Max. Switching Capacity Overall Output Technology Briefing Traffic Shaping (Continue) No reservation for Data exceeding PIR Delay Forwarding Drop

D-Link Confidential Technology Briefing Smoothed Deficit Weighted Round Robin (SDWRR) Accurate and fair scheduling is required to make the egress bandwidth usage more properly nowadays Fair Queue (FQ), WFQ, Deficit Round Robin (DRR), WDRR: Forward/scheduling decision made by byte count and utilization of queues, the true weight of each queue. Smoothed round-robin mechanism makes rapid passes for each queue and use more turns for high queues instead of waiting all packets transmitted in high queues. WRR DRR/ WFQ WRR Smoothed Round-robin First Round Second Round

D-Link Confidential Compatible with existing MPLS network, using LDP for label switching Transparency of subscriber’s L3 routing protocol in ISP network, reduces the effort of ISP and also provides better extensibility in subscriber networks Co-works with QinQ and L2PT to provide L2 transparency to customers Technology Briefing Virtual Private Wire Service (VPWS)

D-Link Confidential Switch Resource Management templates allows user optimizing the switch databases for different application. Routing Mode: For applications requires larger routing tables such as company gateway VPWS Mode: For applications requires lots of L2 VPN tunnels such as ISP access switch Technology Briefing Switch Resource Management (SRM) Application Mode Routing ModeVPWS Mode IPv4 Unicast Route IPv4 Host Entry IPv6 Unicast Routes Dynamic NDP IPv4 Static Route256 (Guarantee) IPv6 Static Routes128 IPv4 Multicast Routes1024 IPv6 Multicast Routes256 IPv4 Interface256 (Guarantee) IPv6 Interface32 (Guarantee) Policy Route128 (Guarantee) Q in Q (Guarantee) VPWS tunnel for PW3232 (Guarantee) Pseudo Wires (Guarantee)

D-Link Confidential Link OAM Check the link status hop-by-hop IEEE802.3ah Live & death check Failure indication (Power, link, critical events) Discovery Technology Briefing OAM ISP Cloud Local ISP Cloud VPN Service Link OAM … Service OAM for customer level Service OAM for ISP level Service OAM for local ISP Service OAM Check the channel status of different service levels IEEE802.1ag, ITU-T Y.1731 Live & death check Performance Monitoring Management Operation Test Operation

D-Link Confidential Y.1731 is a super set of IEEE 802.1ag, providing better OAM control for customers Both Y.1731 and 802.1ag support: Continuity Check Message (CCM): Loss of connectivity defect detection Loopback Message (LBM): Defect localization Link Trace Message (LTM): Verification of network configuration Y.1731 also support: Note Alarm Indication Signal (AIS): Alarm suppression of server (customer) layer Locked (LCK): Indication of service unavailability due to maintenance activities Test: Throughput, frame loss and bit error measurement Loss measurement (LM): Frame loss measurement Delay measurement (DM): Frame delay measurement Maintenance Communication Channel (MCC) Experimental OAM (EXP) Vendor Specific OAM (VSP) Technology Briefing ITU-T Y.1731 Note: DES-3810 supports AIS, LCK only

D-Link Confidential IGMP / PIM IGMP Snooping Legacy Device Host-based IGMP Snooping Access Layer Aggregation Layer IP STB Technology Briefing Host-based IGMP Snooping Bandwidth of Ethernet allows multiple IPTV channels in the same time Host-based IGMP Snooping is future proofing for IPTV service: Multiple IPTV under a single port. Channel surfing of one IPTV does not effect others Support fast leave for quick channel switch

D-Link Confidential IP STB 1 Internet IPTV Partner 1 IPTV Partner 2 IP STB 2 ISP DHCP Server 1 ISP DHCP Server 2 IP STB 1 IP STB 2 IP STB 1 IP STB 2 Insert customized string Option 82 Option 60 Option 61 Technology Briefing DHCP Relay Option 60/61 The DHCP options provide accurate IP manageability for network administrators DHCP option 82: Assign IP based on circuit ID (client VLAN, port, or switch's MAC address) DHCP option 60: Assign IP based on pre-defined string DHCP option 61: Assign IP based on MAC address or pre-defined string Insert MAC Insert a user- defined string Insert MAC Relay to different DHCP server based on inserted MAC Relay to different DHCP server based on inserted string

D-Link Confidential Change pair, no need to change cable Usually multi-pair cables are used for the network construction of cabinets or buildings Detecting various of errors - Lines of specific pair is left open - Two lines of a pair is shorted - Lines of different pair are short - Cable does not exist or quality is too bad Locating the position of cable errors, saving time on cable repair Note Technology Briefing Cable Diagnostics Note: DES-3810 supports distance check on GE port only