Sales Guide for DES3810 Series Apr 2010 DLink

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

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

Positioning Overview D-Link Fast Ethernet Managed Switch Product Portfolio DES-3810 Series Next Generation L 3 DES-3800 Series DES-3528/52 Series L 2 Next Generation DES-3200 Series DES-3028/52 Series Campus / Enterprise D-Link Confidential Telecom / Metro

Product Overview Position Highlights L 3 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 Qo. S, multicast and L 2 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 L 3 routing protocols and L 2 VPN functions make it suitable for the business gateway / ISP access • Fully IPv 6 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 Overview Model Overview Product Models 24 port 10/100 Base-TX + 4 Combo 1000 Base-T/SFP DES-3810 -28 Q 2 ’ 1 1 ? ? ? DES-3810 -52 48 port 10/100 Base-TX + 2 Combo 1000 Base-T/SFP + 2 SFP Software Images Q 2 ’ 1 1 Standard Image (SI) Enhanced Image (EI) D-Link Confidential For Enterprise, Campus, Hospitality L 2/L 3 features, Routing, Multicasting, Security, Qo. S, AAA, OAM For Telecom, IPv 6 networks All SI features, VPWS, BGP, IPv 6 routing, SRM

Product Overview High Flexibility Uplink ports DES-3810 -28 supports 4 combo GE/SFP ports; DES-3810 -52 supports 2 SFP + 4 combo GE/SFP ports 4 SFP ports provides the ability of 2 G aggregation ring or mixed ring/chain topology GE copper ports provide cost-effective cat. 5 uplinks to core switches Aggregation Ring 1 G Fiber 1 G Copper Remote District Rack / Wiring Closet D-Link Confidential

Product Overview Port Comparison Competitor Port Count D-Link DES-3810 -28 24 FE + 4 Combo GE/SFP HP 3500 -24 20 FE + 4 Combo GE/SFP Less supported client ports 3 Com 5500 -EI-28 24 FE + 4 SFP Requires expensive fiber & transceivers for uplink in the cabinet H 3 C 24 24 S 3600 -28 P-SI/EI S 3600 -28 TP-SI S 3610 -28 P S 3610 -28 TP FE FE + + 4 2 Remark SFP GE + 2 SFP Huawei S 3328 TP-SI/EI 24 FE + 2 SFP + 2 Combo GE/SFP Cisco 3750 -24 TS Cisco 3750 -Metro 24 FE + 2 SFP + 2 ES D-Link DES-3810 -52 24 FE + 2 SFP + 2 Combo GE/SFP HP 3500 -48 44 FE + 4 Combo GE/SFP Less supported client ports 3 Com 5500 -EI-52 48 FE + 4 SFP Requires expensive fiber transceivers for uplinks in the cabinet H 3 C S 3600 -52 P-SI/EI H 3 C S 3610 -52 P 48 FE + 4 SFP Requires expensive fiber transceivers for uplinks in the cabinet Huawei S 3352 TP-SI/EI 48 FE + 4 SFP Requires expensive fiber transceivers for uplinks in the cabinet Cisco 3750 -48 TS 48 FE + 4 SFP Requires expensive fiber transceivers for uplinks in the cabinet D-Link Confidential Requires expensive fiber transceivers for uplink in the cabinet

Target Applications Enterprise Access/Aggregation ECMP & PBR provides redundant/load sharing capability of uplink. IMPB, ARP Spoofing Prevention, DHCP Server Screening, BPDU Attack Protection, and L 3 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/e-mail alerts make the network management much easier. Data Center DES-3810 Stack D-Link Confidential

Target Applications Telecom Access of Enterprises ETTB CPE for business subscribers Up to 4 GE FTTB interfaces providing higher bandwidth to customers and fault tolerance capability GVRP STP VLAN DES-3810 Provides L 2 transparency to customers through the ISP network Y. 1731, 802. 1 ag/3 ah Ethernet OAM improves the efficiency of ISP network management V l ISP MPLS Core S T un n el DES-3810 GVRP STP VLAN Qi. Q & L 2 PT HQ D-Link Confidential S VP W DES-3810 GVRP STP VLAN PW Tu e nn Branch

Target Applications Enterprise Routers for Remote Sites 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 DES-3810 CPE RIP OSPF BGP VP VP N Branch N Internet CPE DES-3810 CPE BGP RIP OSPF DES-3810 RIP OSPF HQ D-Link Confidential VPN Branch

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

Position Highlight Enterprise/Campus/Hospitality Networks • Complete supported models • 32 G stacking bandwidth • Support IS-IS • Only 2 G uplink for 24 port for models • Very small MAC table • No ERPS • No Gratuitous ARP • No CPU protection function • Limited Web UI functions DES-3810 Performance Cisco 3750 Huawei S 3300 • Complete supported models • Support IS-IS • Only 2 SFP ports for all models • No WAC • No Gratuitous ARP • No Web UI H 3 C S 3600 (HP A 3600, E 5500) • Complete supported models • Very large flash memory • 64 K MAC Addresses • Complete supported models • No copper GE port for 48 port models • No ERPS • No Private VLAN • No IPv 6 management • No IPv 6 routing protocol • No BGP • No CPU protection function • No WAC • No Embedded Web UI HP 3500 Price Note: Compare according to: DES-3810 EI, S 3300 EI, S 3600 EI and 3750 IP Services image D-Link Confidential • Only 20 or 44 FE ports • No stacking • No ERPS • No Private VLAN • No PBR • No Round-robin Scheduling • No IPv 6 routing protocol • No BGP • No CPU protection function • No Web UI Strength Weakness

Key Comparison DES-3810 -28 HP 3500 -24 24 FE + 4 Combo GE/SFP 20 FE + 4 Combo GE/SFP H 3 C S 3600 -28 TP (HP A 3600, E 5500) 24 FE + 2 GE + 2 Combo GE/SFP Yes (R 3. 00) No ERPS Yes Private VLAN Policy-based Route Feature Huawei S 3328 TP Cisco 3750 -24 TS 24 FE + 2 GE + 2 Combo GE/SFP 24 FE + 2 SFP Yes Yes No No Yes (RRPP) No Yes No No Yes Yes Yes (Only IPv 4) RIPng/OSPFv 3 Yes (EI, R 3. 00) No No Yes (EI) Yes (IP Service Lic. ) BGP Yes (EI, R 3. 00) No No Yes (EI) Yes (IP Service Lic. ) Queue Scheduling SDWRR Shared Queue + SP WRR, WFQ WRR Safeguard Engine Yes No No (S 3600/A 3600) Yes (E 5500) Yes No Web Access Control Yes (Port-based) No No Yes MAC Access Control Yes (Port-based) Yes Web UI Yes (Limited function) No Yes (Only dashboard) $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) $1, 812 $1, 140 (SI) $1, 500 (EI) $731 (SI) $924 (EI) $3, 177 (IP Base Lic. ) $5, 295 (IP Service Lic) Port Configuration Stacking List Price Reseller Price D-Link Confidential Yes (Port-based, S 3600/A 3600) Yes (E 5500) Yes (NMS required, S 3600/A 3600) Yes (E 5500)

Art of War Competition with HP 3500 Series 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. ERPS 3500 does not have any CPU protection function like Safeguard Engine or L 3 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. IPv 6 IPv 4 addresses are predicted to be exhausted by 2011. IPv 6 routing protocols are necessary for L 3 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 L 3 traffic. Making the expensive L 3 investment more efficiency. BGP centralizes the L 3 management of all remote sites, make management more easily and help reduce IT expense. BGP Accurate Qo. S HP 3500 sets minimum bandwidth for each queue instead of queue scheduling mechanism. This will impact the flexibility and accuracy of Qo. S. SDWRR D-Link Confidential

Art of War Competition with HP 3500 Series (Continue) 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. Defending Point 64 K MAC addresses DES-3810 supports only 16 K MAC address which is only ¼ of 3500. A L 3 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, 64 K MAC address table only wastes system resource and cost. Myth/Truth Usage of flash memory D-Link Confidential HP claims they support 4 MB on board flash and 128 MB 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 5 MB, and HP 3500 is about 10 MB. However, HP supports even less function than D-Link does.

Art of War Competition with H 3 C S 3600 Series Attacking Point Physical Interfaces S 3600 has no copper GE interface on 48 port version, making uplink among the cabinet very expensive. High Reliability S 3600 does not support any mini-sec level ring protection protocol which is important for the reliability of campus backbone nowadays. ERPS S 3600 does not have any CPU protection function like Safeguard Engine or L 3 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. IPv 6 IPv 4 addresses are predicted to be exhausted by 2011, IPv 6 routing protocols are necessary for L 3 switches nowadays which S 3600 does not support. . Advanced Routing S 3600 only supports basic RIP, OSPF without advanced routing features. BGP centralizes the L 3 management of all remote sites, makes management more easily and help reduce IT expense. BGP 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. H 3 C S 3600 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 S 3600 does not have embedded Web UI. It requires external NMS (i. MC) 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 H 3 C S 3600 does not support any green feature. D-Link Confidential

Art of War Competition with H 3 C S 3600 Series (Continue) Defending Point WFQ DES-3810 supports Smoothed Deficit Weighted Round Robin (SDWRR) which is a similar schedule mechanism with WFQ. SDWRR Myth/Truth Limitation of Smart Link D-Link Confidential H 3 C 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. Smark. Link only provides fast failover for uplink ports per device basis, it’s not a global redundant protocol for whole network link ERPS or STP.

Art of War Competition with Huawei S 3300 Series Attacking Point Physical Interfaces S 3300 does not have copper GE interface on 48 port version, making uplink among the cabinet very expensive. Accurate Qo. S Huawei S 3300 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. SDWRR 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 S 3300 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 S 3300 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 S 3300 does not support any green feature. Defending Point IS-IS D-Link Confidential 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.

Art of War Competition with Huawei S 3300 Series (Continue) Myth/Truth Sales talk of 10 G stacking bandwidth D-Link Confidential Huawei claims that S 3300 supports up to 10 G stacking bandwidth, however, there is no any 10 G port or dedicated stacking port on S 3300! S 3300 supports 9 switches per stack. If stacking with ring topology, there will be 10 x 1 G cables. So that the true stacking bandwidth should be 1 G.

Art of War Competition with Cisco 3750 Series 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. ERPS 3750 does not have any CPU protection function like Safeguard Engine or L 3 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 L 2+ feature set, the MSRP is $5, 995 already. To enable completed L 3 features, such as OSPF, BGP, & PIM, requires IP Service Image. The MSRP is $9, 990. Defending Point IS-IS 32 G stacking bandwidth D-Link Confidential 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. Cisco 3750 has 2 dedicated 32 G Stackwise ports on each device. But the maximum data rate on the 48 port version is only 4. 8 G. That means rest of the bandwidth are wasted.

Position Highlight Metro Networks Cisco 3750 Metro DES-3810 • Support IS-IS Performance • Complete supported models • Very aggressive when bidding • Support IS-IS Huawei S 3300 • No MPLS VPN features OAM flow collection features green features • Limited MPLS support on ES port • Unreasonable price for advanced routing and MPLS • No flow collection features • No green features • Completed model support • Support IS-IS H 3 C S 3610 (HP A 3610) • No • No MPLS VPN features mini-sec ring protection OAM flow collection features green features Price Note: Compare according to: DES-3810 EI, S 3300 EI and 3750 Metro Advanced IP Services image D-Link Confidential Strength Weakness

Key Comparison Feature H 3 C S 3610 -28 TP DES-3810 -28 (HP A 3610) Huawei S 3328 TP Cisco 3750 Metro 24 FE + 4 Combo GE/SFP 24 FE + 2 GE + 2 Combo GE/SFP 24 FE + 2 SFP ES ERPS Yes No (Smart Link Only) Yes (RRPP) Yes (REP) Host-based IGMP/MLD Snooping Fast Leave Yes No No No Yes (VPWS) (EI, R 3. 00) No No Yes (MPLS, Adv IP Lic) Yes No No No Yes (EI, R 3. 00) No No Yes (SDM) Yes No Yes Yes (R 3. 00) No No No Yes No No No Port Configuration MPLS VPN s. Flow SRM 802. 3 ah/802. 1 ag OAM Y. 1731 CCM Power Saving List Price Reseller Price $1, 515 (SI) $3, 500 (EI) $4, 829 (EI) $2, 028 (EI) Note 1, 2 $3, 484 (SI) $4, 400 (EI) $731 (SI) $924 (EI) $5, 995 (Device) $3, 000 (IP Service Lic) $7, 000 (Adv IP Lic) $4, 436 (Device) $2, 200 (IP Service Lic) $5, 180 (Adv IP Lic) Note 1: SI version is no longer on price book. Note 2: Reseller price on price book. Real price should be lower but shouldn’t be lower than Huawei D-Link Confidential

Art of War Competition with H 3 C S 3610 Series Attacking Point Physical Interfaces S 3610 does not have copper GE interface on 48 port version, making uplink among the cabinet very expensive. High Reliability S 3610 does not support any mini-sec level ring protection protocol which is important for the reliability of telecom access/aggregation nowadays. ERPS 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, S 3610 do not support all these features. DHCP Relay Options Host-based IGMP Bandwidth Control Traffic Shaping Role of MPLS PE S 3610 can only be CE of MPLS environment. It does not have the ability to build up VPN tunnels. VPWS Improving the Management Efficiency S 3610 does not have any OAM protocol or flow collection functions (s. Flow or IPFIX). Strong OAM support is a trend in ISP that help administrators manage the links or service in the network. OAM Y. 1731 Initiative flow collection such as s. Flow 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 H 3 C S 3610 does not support any green features. D-Link Confidential

Art of War Competition with H 3 C S 3600 Series (Continue) Defending Point WFQ DES-3810 supports Smoothed Deficit Weighted Round Robin (SDWRR) which is a similar schedule mechanism with WFQ. SDWRR 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. Myth/Truth Limitation of Smart Link H 3 C 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. Smark. Link only provides fast failover for uplink ports per device basis, it’s not a global redundant protocol for whole network link ERPS or STP. L 2 & L 3 MPLS VPN The Virtual Routing Forwarding (VRF) function makes S 3610 possible to be the MCE of L 3 MPLS environment which shares the loading of PE. However, without LDP support, S 3610 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. VPWS Since VPWS is using LDP forwarding as well, it is still compatible with existing ISP MPLS core network. D-Link Confidential

Art of War Competition with Huawei S 3300 Series Attacking Point Physical Interfaces Future Proved IPTV Service S 3300 does not have copper GE interface on 48 port version, making uplink among the cabinet very expensive. 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, S 3300 do not support all these features. DHCP Relay Options Host-based IGMP Bandwidth Control Traffic Shaping Role of MPLS PE S 3300 can only be CE of MPLS environment, it does not have the ability to build up VPN tunnels. VPWS Improving the Management Efficiency S 3300 supports only IEEE 802. 1 ag/3 ah OAM and has no flow collection function. Y. 1731 is a super set of IEEE 802. 1 ag defined by International Telecommunication Union (ITU) providing more coverage of the demand of telecom applications. OAM Y. 1731 Initiative flow collection such as s. Flow 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 S 3300 do not support any green features. Defending Point IS-IS D-Link Confidential 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.

Art of War Competition with Huawei S 3300 Series (Continue) Myth/Truth L 2 & L 3 MPLS VPN D-Link Confidential The Virtual Routing Forwarding (VRF) function makes S 3300 possible to be the MCE of L 3 MPLS environment which shares the loading of PE. However, without LDP support, S 3300 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. VPWS Since VPWS is using LDP forwarding as well, it still compatible with existing ISP MPLS core network.

Art of War Competition with Cisco 3750 Metro 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. 55 mpps while wired speed should be 9. 5 mpps 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. DHCP Relay Options Host-based IGMP Bandwidth Control Traffic Shaping Improving the Management Efficiency 3750 Metro supports only IEEE 802. 1 ag/3 ah OAM and has no flow collection function. Strong OAM support is a trend in ISP that help administrators manage the links in the network. OAM Y. 1731 Initiative flow collection such as s. Flow 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 Energy. Wise. Defending Point WFQ DES-3810 supports Smoothed Deficit Weighted Round Robin (SDWRR) which is a similar schedule mechanism with WFQ. SDWRR 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. D-Link Confidential

Art of War Competition with Cisco 3750 Metro (Continue) Myth/Truth L 2 & L 3 MPLS VPN D-Link Confidential 3750 Metro supports many MPLS features such as VRF, LDP, FRR, … making it possible to be a PE of L 3 MPLS environment. However, with Virtual Private Wire Service (VPWS), DES-3810 can also be the PE of L 2 MPLS environment directly. VPWS Since VPWS is using LDP forwarding as well, it still compatible with existing ISP MPLS core network.

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

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: 50 ms recovery time for 16 -node ring with <1, 200 Km circumference STP RSTP ERPS Topology Type Any Topology Ring / Multiple Ring Convergence Time 30 -50 seconds 1 second 50 -200 ms! Aggregation Ring Master Link Down! Master Access Ring Disable Blocking Link Down! D-Link Confidential

Technology Briefing Bandwidth Control & 3 Color Marker 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 Vo. IP priority tag for traffic exceeding CIR. Doing CIR best-effort forwarding when peak of each PIR service are conflicted. Data Total UNI (User Network Interface) Bandwidth D-Link Confidential IPTV R CI R PI PIR CIR

Technology Briefing Traffic Shaping 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 Qo. S requirement nowadays. Buffer Memory bps Store to buffer bps Max. Switching Capacity Data Time Data Delay Forwarding D-Link Confidential Time

Technology Briefing Traffic Shaping (Continue) 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) PIR/EIR Drop No reservation for Data exceeding PIR CBS for Data Buffer Memory CIR Store to PBS/EBS Data EBS for IPTV bps Max. Switching Capacity Store to CBS PIR/EIR Guaranteed Forwarding CIR CBS for IPTV D-Link Confidential Overall Output Delay Forwarding Time

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. WRR DRR/ WFQ • 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 Second Round Smoothed Round-robin D-Link Confidential First Round

Technology Briefing Virtual Private Wire Service (VPWS) Compatible with existing MPLS network, using LDP for label switching Transparency of subscriber’s L 3 routing protocol in ISP network, reduces the effort of ISP and also provides better extensibility in subscriber networks Co-works with Qin. Q and L 2 PT to provide L 2 transparency to customers D-Link Confidential

Technology Briefing Switch Resource Management (SRM) 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 L 2 VPN tunnels such as ISP access switch Application Mode Routing Mode VPWS Mode IPv 4 Unicast Route 7286 3190 IPv 4 Host Entry 3575 1728 IPv 6 Unicast Routes 1821 797 Dynamic NDP 1821 797 IPv 4 Static Route 256 (Guarantee) IPv 6 Static Routes 128 IPv 4 Multicast Routes 1024 IPv 6 Multicast Routes 256 IPv 4 Interface 256 (Guarantee) IPv 6 Interface 32 (Guarantee) 128 (Guarantee) 1024 (Guarantee) 32 32 (Guarantee) 496 (Guarantee) Policy Route Q in Q VPWS tunnel for PW Pseudo Wires D-Link Confidential

Technology Briefing OAM ISP Cloud VPN Service Local ISP Cloud Link OAM … … Link OAM Local ISP Cloud … … Link OAM Service OAM for customer level Service OAM for ISP level Service OAM for local ISP Link OAM • Check the link status hop-by-hop • IEEE 802. 3 ah • Live & death check • Failure indication (Power, link, critical events) • Discovery D-Link Confidential Service OAM for local ISP Service OAM • Check the channel status of different service levels • IEEE 802. 1 ag, ITU-T Y. 1731 • Live & death check • Performance Monitoring • Management Operation • Test Operation

Technology Briefing ITU-T Y. 1731 is a super set of IEEE 802. 1 ag, providing better OAM control for customers Both Y. 1731 and 802. 1 ag 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) Note: DES-3810 supports AIS, LCK only D-Link Confidential

Technology Briefing Host-based IGMP Snooping Bandwidth of Ethernet allows multiple IPTV channels in the same time IGMP / PIM Aggregation Layer Access Layer Legacy Device 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 IGMP Snooping • Support fast leave for quick channel Host-based IGMP Snooping IP STB D-Link Confidential IP STB switch

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 ISP DHCP Server 1 IPTV Partner 1 Internet ISP DHCP Server 2 Relay to different DHCP server based on inserted MAC IPTV Partner 2 Insert a user. Insert customized defined string IP STB 1 IP STB 2 Option 82 D-Link Confidential IP STB 1 Insert MAC Relay to different DHCP server based on inserted string Option 60 IP STB 2 IP STB 1 Option 61 IP STB 2

Technology Briefing Cable Diagnostics 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: DES-3810 supports distance check on GE port only D-Link Confidential