Achieving data center virtualization with Contrail

思科数据中心基础设施设计考试主要内容考试说明：思科数据中心基础设施设计(DCID)考试(300-160)考试时间为90分钟，60-70道考题。

思科数据中心基础设施设计(DCID)考试(300-160)是CCNP数据中心认证考试中的其中一门考试，检验考生是否具备数据中心基础设施设计知识，包括部署需求，网络互连选择，基础设施建设，存储网络，计算互联，以及计算资源参数等。

思科数据中心基础设施设计v6.0(DCICD)将帮助考生准备认证考试，内容与考试主题相适应。

下列信息为您提供了思科数据中心基础设施设计(DCID)考试(300-160)所含的大纲。

然而，在特定的考试方式中还可能出现其他的相关要点。

为更好地反映考试内容并以清晰起见，下列大纲可能随时更改，且不作通知。

1.0 Data Center Network Connectivity Design1.1 Evaluate options for Layer 2 connectivity to meet deployment requirements in the data center1.1.a Endpoint mobility1.1.b Redundancy / high availability1.1.c Convergence1.1.d Services insertion1.2 Evaluate options for Layer 3 connectivity to meet deployment requirements in the data center1.2.a IP mobility1.2.b Redundancy / high availability1.2.b (i) Graceful restart / NSF1.2.c Convergence1.2.d Services insertion1.2.d (i) Load balancing1.2.d (ii) Security2.0 Data Center Infrastructure Design2.1 Evaluate data center protocols to meet deployment requirements2.1.a Fabric Path2.1.b OTV2.1.c VXLAN2.1.d LISP2.1.e VPC/VPC+2.2 Evaluate options for orchestration and management in a data center2.2.a Orchestration and automation2.2.b Out-of-band management network2.2.c License management2.3 Evaluate options for device and routing virtualization in a data center2.3.a VDC2.3.b VRF2.4 Evaluate options for interconnecting data centers3.0 Data Center Storage Network Design3.1 Plan for iSCSI deployment in the data center1.1.a Multipathing1.1.b Addressing schemes3.2 Evaluate QoS requirements in the data center3.2.a Fibre Channel3.2.b FCoE3.2.c FCIP3.2.d iSCSI3.3 Determine FCoE/ Fibre Channel interface parameters based on data center requirements3.3.a Dedicated and shared mode3.3.b Port types3.3.c ISL3.3.d Oversubscription3.4 Evaluate SAN Topology options in the data center3.4.a Fabric redundancy3.4.b NPV, NPIV, and FCF3.4.c Load balancing4.0 Data Center Compute Connectivity Design4.1 Evaluate options for Ethernet connectivity to meet deployment requirements in a data center4.1.a Redundancy / high availability4.1.b Bandwidth4.1.b (i) Over subscription4.1.c Fabric interconnect operation mode4.1.c (i) Switch mode4.1.c (ii) End host mode4.2 Evaluate options for storage connectivity to meet deployment requirements in a data center4.2.a Multipathing4.2.b Bandwidth4.2.b (i) Port channels4.2.b (ii) Oversubscription4.2.c Fabric interconnect operation mode4.2.c (i) Switch mode4.2.c (ii) End host mode4.2.d Direct-attached storage4.2.d (i) Appliance port4.2.d (ii) Fibre Channel storage port4.2.d (iii) FCoE port5.0 Data Center Compute Resource Parameters Design5.1 Evaluate options for orchestration and automation in the data center5.1.a Service profile templates5.1.b vNIC templates5.1.c vHBA templates5.1.d Global policies vs local policies5.2 Evaluate options for management network in a data center5.2.a In-band5.2.b Out-of-band5.3 Evaluate options for network device virtualization in a data center5.3.a Cisco VIC adaptors5.3.a (i) Number of interfaces vs IOM uplinks5.3.a (ii) vCon placement policies 5.3.a (iii) Ethernet adaptor policies 5.3.a (iv) Fibre Channel policies。

数据中心服务器虚拟化平台建设方案1.硬件选型选取高性能、高密度的服务器硬件，例如采用Intel Xeon处理器、大容量内存、大容量硬盘等。

此外，还应选择支持虚拟化技术的硬件平台，如Intel VT技术或AMD-V技术，以保证服务器在虚拟化环境下的性能和稳定性。

2.虚拟化软件部署选择一款稳定可靠的虚拟化软件，如VMware vSphere、Microsoft Hyper-V或XenServer等。

根据实际需求，可选择单节点虚拟化或集群虚拟化方式进行部署。

-单节点虚拟化：适用于小规模数据中心。

每个物理服务器上部署虚拟化软件，并在其上创建多个虚拟机，以提高硬件利用率和资源共享。

-集群虚拟化：适用于大规模数据中心。

将多个物理服务器组成集群，通过集群管理软件实现虚拟机的自动迁移、负载均衡和故障恢复等功能。

3.存储设备选型虚拟化平台的性能和稳定性很大程度上取决于存储设备的选择。

可以选择传统的存储设备，如SAN（存储区域网络）或NAS（网络附属存储），也可以选择新兴的软件定义存储（SDS）解决方案。

无论选择何种存储方案，都应考虑存储容量、性能、可靠性和扩展能力等因素。

4.网络设备选型数据中心服务器虚拟化平台的网络通信是至关重要的。

应选择高性能、可靠稳定的网络设备，如交换机和路由器，以保证虚拟机之间的通信和数据传输。

同时，还应使用虚拟交换机技术，将虚拟机的网络隔离和安全性提升到与物理服务器相当的级别。

5.管理控制虚拟化平台的管理控制是数据中心服务器虚拟化的关键。

通过虚拟化管理软件对虚拟机进行创建、启动、关闭、迁移、备份等操作。

应选择功能强大、易于使用的管理软件，如vCenter、System Center等，以提高管理效率和便捷性。

在实施虚拟化平台建设方案时，还应注重以下方面：-安全性：数据中心服务器虚拟化平台涉及大量敏感数据和关键业务应用，应采取相应的安全措施，如访问控制、加密通信和安全审计等。

-容错性和可用性：通过集群技术实现服务器的自动故障转移和负载均衡，以提高虚拟机的可用性和容错性。

CloudEngine Is the Foundation of the Intent-driven NetworkHuawei CloudEngine Series Switches Technical PresentationContentsClick to add Title 1Click to add Title 2Click to add Title 3CloudEngine Switch OverviewCloudEngine Switch HighlightsCloudEngine Switch Market ProgressSwitches Are the Cornerstone for Transforming Data Centers from Service Centers to Value CentersCloud computingBig DataDistributed storageMetcalfe's Law: The effect of a telecommunications network is proportional to the square of the number of connected users of the system.-Robert Metcalfe who invented Ethernet, founder of 3Com In the future, even if all hardware network devices will disappear, data center switches used as the buses connecting to servers, will always exist. The Ethernet helps release the value of data.AISDN NFVIntent-driven networkUltra-broadbandInfrastructureSimplifiedOpenController and management tool layerControllerAnalyzerSecurityCharacteristics of the Future of DC Switches: Ultra-broadband, Simplified, Intelligent, Secure, and OpenIntelligentSecureManagementControlAnalysisOpenConvergenceEcosystemSpine LeafGatewayBandwidth -> LatencyLayer 2 and Layer 3 -> SecurityManual driving -> Automated drivingWeb page -> Service integrationCloudEngine Series Data Center Switches Portfolio(1)Core SwitchesAccess SwitchesCloudEngine 6881-48S6CQ (New)CloudEngine 6863-48S6CQ (New)CloudEngine 16800 (New)CloudEngine 16816CloudEngine 16808CloudEngine 1680410GE ToR switch25GE ToR switchCloudEngine Series Data Center Switches Portfolio(2)Core SwitchesAccess Switches10GE ToR switchCE6851-48S6Q-HICE6810-48S4Q-LICE6810-32T16S4Q-LIGE ToR switchCE5855-48T4S2Q-EICE5855-24T4S2Q-EIVirtual SwitchesCE1800VCE6855/CE6856-48S6Q-HICE6855/CE6856-48T6Q-HI10GE large-buffer ToR switchCE6870-48S6CQ-EIToR switch with flexible cardsCE8861-4C-EI40GE switchCE7855-32Q-EICE6865-48S8CQ-EI25GE ToR switch100GE switchCE8850-64CQ-EICE12816CE12812CE12808CE12808S CE12804SCE12804CE12800CE12800SCE6870-48T6CQ-EICE6875-48S4CQ-EICE8850-32CQ-EICE6860-48S8CQ-EICE6857-48S6CQ-EICE8860-4C-EICE5880-48T6Q-EICE6880-24S4Q2CQ-EIOrthogonal architectureStrict front-to-back airflow designNon-blocking switchingCounter-rotating fansLine cardNo cabling of the backplaneIncreased bandwidth of the entire systemCE12800Patent No.: CN201110339954.1Independent front-to-back airflowEven heat dissipation, suitable for data centersCell switching and VoQTraffic balancing, improving bandwidth utilizationCounter-rotating and turbo fansHighly efficient heat dissipationLeading energy-conserving designHigh-Quality CloudEngine: High-Quality Architecture Creates a Green and Stable Network•Industry-leading architecture design and high quality:orthogonal SFU design,Clos architecture,cell switching,and Virtual Output Queue (VOQ)mechanism 1/31/31/31/31/31/31/31/31/31/31/31/31/31/31/31/31/31/3ContentsClick to add Title 1Click to add TitleCloudEngine Switch Overview3CloudEngine Switch Market Progress▪Ultra-broadband Cloud Engine ▪Simplified Cloud Engine ▪Intelligent Cloud Engine▪Secure Cloud Engine ▪Open Cloud Engine2CloudEngine Switch HighlightsClos Theory: Cluster Scale Is the Driving Force for Data Center Network Architecture EvolutionSpineLeafCore EdgeSpineLeafCoreEdgeSpineLeafEdgeL2L310GE10GE40GE 40GE 40GEL2BGPL3L3First generation: 3K GE serversSecond generation: 10K GE serversThird generation: 20K 10GE servers⚫The port capacity of cards increases continuously, and CE switches canprovide 36*100GE ports.⚫To avoid HASH polarization, CE switches provide 128 ECMP paths.⚫Network congestion control: CE switches provide large buffer, and split a single flow into multiple ones to load balance them.Difficulties in the non-blocking Clos architecture: The convergence ratio and packet loss ratio cannot be compromised.⚫Data center network architecture: A fat-tree topology is used and the capacity of the root node determines the server cluster scale.⚫Evolution direction: Add network layers, and increase the quantity and capacity of spine or code nodes.⚫Network congestion control: Increase the buffer and optimize load balancing.CE switches' buffer is 80 times higher than the industry average, implementing zero packet loss for microburst traffic. The switches' performance is 1032 Tbit/s. CE switches can connect to over 50,000 servers with no blocking.Larger Interface Rate: The Rise of 25GE Interfaces Balance the Cost and Efficiency10M1980100M: IEEE802.3u199519981000M: IEEE802.3ab/z20021G: IEEE802.3ae/ak201040G/100G: IEEE802.3ba2008DCB/PB (IETF TRILL)2013400G2009FCoE201625G: 802.byDevelopment of Ethernet:DPDKIn the past two years, why are 25GE interfaces used?➢The 25GE interface can better match the SerDes rate: 1.25 Gbit/s -> 3.125 Gbit/s -> 6.25 Gbit/s -> 10.3125 Gbit/s -> 25 Gbit/s -> 56 Gbit/s➢Compared with the 40GE NIC, the 25GE NIC has higher use efficiency of the PCIe channel. (40G+40G)/8G*16= 62.5%; 25G*2/(8G*8) = 78%➢Lower cabling costs for 25GE interfaces: The SFP28 module is used. Because only single-channel connections are used, the SFP28 module is compatible with LC optical fibers in the 10GE era, without cabling.➢The bandwidth between NICs has exceeded 10 Gbit/s: As technologies such as RDMA, SR-IOV, and DPDK develop, the bandwidth between NICs has exceeded 10 Gbit/s.APP RDMA NICCoprocess or/FPGAAPPRDMA NICFast CNPCNPPPVIQ: eliminates packet lossinside chipsVIQ12Dynamic ECN3Dynamic ECNFast CNPPacket lossTraditionalVIQVIQ enables the outbound interface to send backpressure signals to the inbound interface, achieving zero packet loss.PFCSRECNNormal CNPPhysical queueThreshold (Port-Buffer)SwitchServer Q0Q1ECN waterline ECN waterlineRR ServerServerServer.. .Dynamic ECN uses dynamic collection and dynamic threshold adjustment to realize low latency and high throughput.Fast CNP provides fast congestion feedback to improve networkconvergence performance by 30%.AI Fabric: Intelligent Lossless Data Center Network Solution Provides Low latency and Zero Packet LossFast CNPUltra-broadband Cloud Engine Simplified Cloud Engine Intelligent Cloud Engine Secure CloudEngine Open Cloud Engine➢Independent forwarding, control, anddetection, and 3-channel cluster design ➢Four dedicated GE interfaces are used ascluster control channels.➢ A maximum of 3.2 Tbit/s cluster bandwidthis supported.Unique three-channel separated cluster, control plane coupling…Control signalingchannelData forwardingchannel Dual-active detection (DAD) channel➢The control plane runs independently and synchronizes asmall amount of information about interface status entries.➢Devices in the DFS group can be upgraded independently,without interrupting services.➢When the peer-link is faulty or the M-LAG master devicefails twice, the M-LAG backup device can still work properly.Independent control plane, protocol-level coupling…Peer-linkDAD channelDevice Virtualization: Easy-to-Manage, High-Performing, Highly Reliable Virtual SystemsC luster S witch S ystem (CSS)M ulti-Chassis LAG (M-LAG)➢The control plane runs independently anddoes not have synchronization information.➢Two switches are configured with the samegateway IP address and MAC address.➢Two links of the server NIC are configured tosend broadcast packets simultaneously.Independent control planewithout couplingM-LAG Lite➢Provide a maximum of 1:16virtualization capabilities in port and port group mode.On-demand VS allocation, improving resource utilization➢Exclusive CPU, memory, and MAC/VLAN/FIB entriesExclusive resources in VSs and highest specificationsFault isolation between VSs, improving securityVS (V irtual S ystem )Ultra-broadband Cloud Engine Simplified Cloud Engine Intelligent Cloud Engine Secure CloudEngine Open Cloud EngineLayer 2 Boundary Extension: Build a Large-Scale Network Resource Pool Based on BGP EVPNBGP EVPN acts as the VXLAN control plane to provide the following functions:➢Triggers automatic VXLAN tunnel setup between VTEPs to avoid the need to manually configure full-mesh tunnels.➢Advertises host routes and MAC address table, prevents unknown traffic flooding, and optimizes packet forwarding.➢Implements Layer 2 interconnection between data centers in different networking.Layer 2 large-scale horizontal expansion in the data centerand extension to the remote DCVXLAN BGP EVPNVTEP VTEP VTEP VTEP RRRRBGP EVPNVTEP VTEPProtocol vitality: open interconnection and interworkingbetween devices from different vendorsNetwork Automation: Interconnection with Third-Party Management Tools, Controllers, Virtualization Management Platforms, and Cloud PlatformsScenario 1: traditional network management➢Interconnection with a third-party management tool : CE switches can interconnect with a third-party management tool such as Ansible to implement automatic network configuration.Scenario 2: network and computing association➢Interconnection with a virtualization management platform : CE switches are connected to the Agile Controller-DCN, and the Agile Controller-DCN is associated with the third-party computing management platform.Scenario 3: third-party management on the overlay➢Interconnection with a third-party controller : The CE switch functions as the VXLAN Layer 2 VTEP and is managed by the NSX.Scenario 4: cloud-network integration➢Interconnection with a cloud platform through the Agile Controller-DCN : CE switches are connected to the AgileController-DCN, and the Agile Controller-DCN connects to the third-party cloud platform.SpineLeafGateway10GE40GEDCScenario 1Interconnection with a managementtoolISP2Scenario 2Interconnection with avirtualization managementplatformScenario 3Interconnectionwith a third-party controller Scenario 4Interconnection with a cloud platformSimplified Deployment: IPv4 and IPv6, Unicast and Overlay Multicast, and Rollout of Full-stack Services Within MinutesServer leaf IPv6IPv4VTEP Server leaf SpineVTEPServer leaf VM VM VMOVSBorder-LeafBMVTEP VM VM VMOVSServer leaf VTEPBMIPv4 extranetIPv4Service-centered IPv6 evolution mode➢2018 Q3: virtualization ➢2019 Q1: cloud-network cooperationServer leafIPv6IPv4VTEP Server leaf SpineVTEPServer leaf VM VM VMOVSBorder-LeafBMVTEP VM VM VMOVSServer leaf VTEPIPv6 extranetIPv4 extranetIPv4IPv6 extranetReplicate IPv4 O&MexperiencesServer leafVTEP Server leaf SpineVTEPServer leaf VM VM VMOVSBM VTEP VM VM VMOVSServer leaf VTEPIPv4 extranetIPv4 extranetOverlay multicastSave bandwidthServer leafVTEP Server leaf SpineVTEPServer leaf VM VM VMOVSBM VTEP VM VM VMOVSServer leaf VTEPIPv4 extranetIPv4 extranetDual-stackMulticastIngress replicationIGMP/PIM-SM➢2018 Q3: commercial chip ready ➢2019 Q1: controller mappingCollectorAnalyzerCPU Forwarding Chip CollectorAnalyzerCPUForwarding ChipCollectorAnalyzerCPUForwarding ChipNP•SNMP or NETCONF uses the query/response mechanism, minute-level reporting, and XML or text encoding, which is inefficient.•NetStream uses the flow sampling mechanism and requires CPU participation, which has low performance and is inaccurate.•gRPC uses the subscription/reporting mechanism, subsecond-level reporting , protobuffer coding, and HTTP transmission, which has a high efficiency .•ERSPAN+ adds ingress and egress ports or timestamps of original flows to calculate the flow path and delay .•INT supports in-line path or quality detection.SNMP NetconfNetstreamERSPANSNMP NetconfNetstreamERSPAN+INTgRPCSNMP NetconfFlow tableProtobuf over UDPgRPCERSPAN+Netstream1:1•Protobuf over UDP is used to encode andtransmit forwarding plane information, which is efficient and does not affect CPU performance .•Small NP intelligent analysis algorithm is used to perform in-depth analysis of abnormal flows to learn in-depth information such as the latency, jitter, packet loss ratio, and packet loss location .Historical CapabilitiesCurrent CapabilitiesFuture EvolutionTelemetry Capability: Transformation of the Data Collection Mode Is the Basis of Big Data O&MUltra-broadband Cloud Engine Simplified Cloud Engine Intelligent Cloud Engine Secure CloudEngine Open Cloud EngineMicroburst Detection Capability: Millisecond-level Buffer Monitoring and Subscription Collection, Which Are Visible and ClearData CenterService exceptionNormal networkTraditional NMSArtifactFreezeSubsecond-levelcollectiongRPC subscription . . .Content feedbackOne request formultiple tasks•Visible: subsecond-level subscription data collection510us50%100%The buffer is full and packet loss may occur.2-ms buffer monitoring•Clear: high-precision data monitoring5-minute pollingperiodSNMP request and response. . .Multiple requests for a single task510s50%100%Normal buffer detectionMicrosecond-level buffer monitoring•The collection period is too long, which may ignore network details.•The detection interval is too long, so device details may be incomplete.Forwarding chipCPUFPGACE8860Monitoring queueNote: The CE8860 supports this function.VM 1VM 2VM 3 1.1.1.1 1.1.1.2 1.1.1.3VM 4VM 5VM 6 2.2.2.1 2.2.2.2 2.2.2.3As Is: subnet-based isolation To Be:VM-level isolationFine-grained DefenseDefining applications based on VM names and discrete IP addresses, with finer granularity and wider dimensionsFlexible DeploymentDefining services based on application groups and decoupling from subnets to achieve flexible deployment Distributed SecurityTraffic of access switches is filtered nearby and east-west isolation is implemented without using firewalls.Use Microsegmentation to Achieve Fine-grained Isolation and Service SecurityWebAppAFW IDS LB NATVASResource poolSimplified deploymentThe SDN controller definesservice chains through drag-and-drop operations.Efficient forwardingProvide traffic diversion for one time, simple configuration, service traffic forwarding, and secure monitoring.Flexible orchestrationDecouple the VAS function from Fabric, providing flexible orchestration.Switch SwitchSwitchAgile CloudEngine: Supporting NSH Service Chains, Providing Easier VAS OrchestrationACOpticalfiber/transmissiondevice/Layer 2 transparenttransmissionMacSec at the Link Layer: IP Layer 3 Features such as Encryption Are Introduced to the MAC Link LayerSwitch ASwitch BScenario➢In scenarios that require high data confidentiality, such asgovernment, military, and finance scenarios, interconnection is required between data centers or between different modules of data centers across buildings.➢The CE6875 uplink port (100GE), and CEL16CQFD (16*100GE) and CEL08CFFG1 (8*200GE) cards of the CE12800 can be used.Definition➢Media Access Control Security (MACsec) ensures securecommunication within LANs in compliance with IEEE 802.1AE and 802.1X. It provides identity authentication, data encryption, integrity check, and replay protection to protect Ethernet frames and prevent devices from processing attack packets.NetworkingNetworkingOriginal packetData encryption protectionMACsec packetData integrity protectionStandardsChinaIntegration InnovationEcological cooperationGermany MoscowMulti-vendor pre-integration verificationMulti-layer open ecosystemOpen Ecosystem: Huawei Joins Hands with 20+ Industry Chain Partners to Perform System IntegrationOpen ecosystem: fast integration andsimplified managementSystem integration: 10+ OpenLabs in the globeManufacturerNSXAnsible. . .Rapid response to service requirementsHardware BFDMicrosegmentationNSH modeIPv6 over VXLANCPUForwarding chipIntra-card CPU chip Quad-core CPU:▪Protocol packet processing▪FIB entry delivery ▪. . .Co-processor▪Hardware BFD ▪High-performance sFlow ▪. . .Forwarding chipAdjustable processes New service processes Adjustable entry resourcesEnhanced serviceprocessesVRPnetconfCLILinux ContainergRPCopenflowSSHpuppetFuncEditnetconfSNMPLinux and driverFragmentation and reassemblyOpen architecture, Flexible Business Innovation•Higher interface rate: 25GE interfaces and larger buffer cope with traffic surge in N:1 scenarios.•Flowlet&DLB: One flow is load balanced among multiple links.•AI Fabric intelligent lossless data center network solution: low latency and zero packet lossUltra-broadband: higher interface rate, more even load balancing, larger buffer, and lower latency•Telemetry capability•Microburst detection •Edge analysis capability•Microsegmentation used to isolate east-west traffic on switches (east-west traffic is isolated on firewalls originally)•SFC used to divert traffic from the control plane to the data plane•MACsec hardware encryption, providing high security and reliability•Open API•Interconnection with third-party management tools: Ansible•Interconnection with third-party management tools or controllers: VMaare NSX•Multiple virtualization technologies: CSS, M-LAG, M-LAG Lite, and VS •VXLAN + BGP EVPN: intra-DC and inter-DC virtualization•SDN controller: deployment in drag-and-drop mode, IPv4 and IPv6, rollout of unicast and multicast full-stack services in minutesIntelligent: enabling service agilitySimplified: automatic deployment of full-stack services and service rollout within minutesOpen: easy integration and timelyresponse to servicesSecure: best quality in the industry and pioneering energy-saving technology CloudEngine High-Performance Cloud SwitchesContents1Click to add Title 2CloudEngine Switch OverviewCloudEngine Switch Highlights Click to add Title 3CloudEngine Switch Market ProgressChina's No.1 and One of World's Top 3 DCN Vendors2014Source: IHS “2015 Infonetics Data Center and Enterprise SDN Vendor Leadership Analysis ”20132012•Data center network vendor with the fastest growth•First release of InterOP impressing the world •Industry-leading ultra-high performance2015•Huawei was the only Chinese vendor in the global SDN leadership list.•Largest market share in China in Q2•Huawei was the global data center network vendor with the fastest growth.•Annual growth rate up to 137%Global SDN AuthoritativeReport of Leading Vendors2016•The market share ranks No. 1 in Chi na and the third largest in the world .•SDN capability won the Best of ShowNet Award at Tokyo Interop.2017•Huawei was positioned as challenger in Gartner's Magic Quadrant for Data Center Networking.2018•Huawei has been positioned as a leader in data center hardware platforms for SDN.•The AI Fabric won the Best of Show Gold Award.In 2013, the CloudEngine 12800 won the Best of Show Award at Interop, which is the highest exhibition in the IT industry. Huawei is the first Chinese provider that wins the position.Highly Recognized PerformanceAward of Excellent Product Trusted byCIOAward of the Most Competitive Product Awards and CertificationsPreferred Brand of Cloud Computing and Network SolutionAward of Annual Excellent TechnologyChina SDN SDN Best Practice AwardAward of Excellent Product in Big DataIn 2016, the CE8860 and CE6851 won the Best of Show Award at Interop.InterOP AwardsHuawei's AI FabricIntelligent Lossless Data Center Network Solution Takes Home Interop Tokyo Best of Show AwardCloudEngineSeries Switches Serve 7800+ Global Customers⚫The market share is No.1in China and No.3in theworld.⚫The global market share growth rate is No. 1 for fourconsecutive years .⚫Over 32,000 CE12800 switches have been soldaround the world, serving 7800+customers in 120+countries.DC SDN SDN hardware platform leader⚫2018 Approaching the Leaders Quadrant ⚫2017 ChallengerGartner Peer InsightsCustomers’ Choice for Data Center NetworkingCopyright©2018 Huawei Technologies Co., Ltd.All Rights Reserved.The information in this document may contain predictivestatements including, without limitation, statements regarding the future financial and operating results, future productportfolio, new technology, etc. There are a number of factors that could cause actual results and developments to differ materially from those expressed or implied in the predictive statements. Therefore, such information is provided for reference purpose only and constitutes neither an offer nor an acceptance. Huawei may change the information at any time without notice.把数字世界带入每个人、每个家庭、每个组织，构建万物互联的智能世界。