*100GE QSFP28 ports support 100GE optical modules, and each of them can be split into four 25GE SFP28 ports. 40GEQSFP+ optical modules are supported and each 40GE port can be split into 10GE SFP+ ports.
Highly reliable long-distance stacking, enabling excellent performance
* Stacking of up to 16 switches:
The CloudEngine 8850-64cQ-El and CloudEngine 8850E-32cQ-El support a stack of 16 switches, meeting high-densityserver access requirements in DCs.
Multiple devices in a stack system are virtualized into one logical device, making it possible to build a scalable andeasyto-manage DCN.
A stack system separates the control plane from the data plane. Thls ellminates the risk of single-point fallures andgreatly improves system reliability.
* Ultra-long-distance stacking. The switches use service ports as stack ports to implement intra-rack stacking, inter-rack stacking, and long-distancestacking across areas.
Service bandwidth and stack bandwidth can be fexibly allocated based on the network scale so that network resourcescan be utilized more efficiently.
Zero service interruptions even upon faults, achieving high network reliability
* CloudEngine 8800 series switches support Multichassis Link Aggregation Group (M-LAG) to implement link aggregationamong multiple devices, improving link reliability from the card level to the device level.
* Switches in an M-LAG system can be upgraded independently. During the upgrade, other switches in the system take overtraffic forwarding to prevent service interruption.
* Leveraging the comprehensive inter-device link aggregation technologies, the CloudEngine 8800 series switches evolvedevice coupling from control-plane-based stacking to M-LAG and then finally to coupling-free M-LAG Lite. These serve toimplement active-active server access and highly reliable switch upgrade.
Programmable network devices, enabling flexible customization
* CloudEngine 8800 series switches use the next-generation VRP8 operating system, in which an Open ProgrammabilitySystem (OPS) module is embedded to provide control-plane programmability.
* The OPS provides abundant open APls for integration with mainstream cloud platforms (including commercial andopensource cloud platforms) and third-party controlers, enabling flexible customization and automatic management ofnetwork services.
* Users or third-panty developers can use the open APls to develop and deploy dedicated network management policies,implementing fast expansion of service functions, automatic service deployment, and intelligent device management. Theseserve to automate network operations and maintenance (O&M) and minimize management costs.
* CloudEngine 8800 series switches support Ansible - an automatic management and O&M tool - to implement unifedprovisioning of physical and virtual networks.
* The OPS is dedicated to seamlessly integrate Dc services and networks to enable service-oriented, software-definednetworks.
Virtualized hardware gateway, achieving rapid deployment
* CloudEngine 8800 series switches can work with the industry's mainstream virtualization platforms, When functioning ashigh- performance hardware gateways on an overlay network (VXLAN), CloudEngine 8800 series switches can support theoperations of a DC with up to 16 million tenants.
* When functioning as hardware gateways on an overlay network, CloudEngine 8800 series switches can connect to cloudplatforms through open APls, facllitating unified management of virtual and physical networks.
* The hardware virtualized gateway solution achieves rapid service deployment without having to change the customernetwork,protecting customer investments.
* CloudEngine 8800 series switches support Border Gateway Protocol - Ethernet VPN (BGP-EVPN), simplifying VXLANconfgurations within and between DCs.
Zero Touch Provisioning (ZTP), enabling automatic 0&M
* CloudEngine 8800 series switches support ZTP, which allows the switches to automatically obtain and load version files froma USB lash drive or fle server. Thls frees network engineers from on-site confquralon and deployment. reduces labor costsand improves deployment efficiency.
* ZTP supports embedded script languages and provides them for users through open APls, so that Dc users can use afamiliar programming language (such as Python) to centrally configure network devices.
* ZTP decouples the configuration time of new devices from device quantty and geographical distribution, shortening theservice provisioning time and improving the service rollout efficiency.
Intelligent lossless network, meeting high performance requirements of RoCEv2 applications
* CloudEngine 8800 series switches suppor the iLossless algorithm to elminate packet loss on the conventional Ethernet. Thishelps to build a lossless, low-latency, and high-throughput network environment for RoCEv2 trafic, meeing high performancerequirements of RoCEv2 applications.
* CloudEngine 8800 series switches support PFc deadlock prevention. They can identify service fiows that may cause PFcdeadlocks and change queue priorities of these fows to prevent PFC deadlocks.
* CloudEngine 8800 series switches support Artificial inteligence Explicit Congestion Notification (Al ECN). This future-orientedfunction can intelligently adjust the ECN thresholds of lossless queues based on the live-network trafic model to ensure lowlatency and high throughput with zero packet loss, maximizing the perfomance of lossless services.
* CloudEngine 8800 series switches support dynamic load balancing (DLB) based on equal-cost multl-pah (ECMP) groups andlink aggregation groups (LAGs).
* CloudEngine 8850-64CQ-El serles switches support integrated Network and computing (liNc) to perform high-perfommancecomputing of some collective communication data in HPc scenarios. This serves to reduce the communication workloadbetween server clusters, thereby reducing the network latency and improving the computing eficiency in the HPc small-sizedpacket scenario.
Intelligent O&M through collaboration with iMaster NCE-FabricInsight
* CloudEngine 8800 series switches support telemetry technology to collect device data in real time and send the collected datato ilaster NCE-Fabricinsight - the DcN analysis component of Hua weis iMaster NCE. Leveraging the intelligent faultidentification algorithm, ilaster NCE-Fabricinsight can analyze network data, accurately display the network status in realtime, locate faults and identify their root causes in a timely and effective manner, and detect network problems that can affectuser experience,preclsely guaranteeing user experience.
* CloudEngine 8800 series switches support inteligent traffic analysis. They can perform in-depth analysis on specified servicefow's to obtain the fiows' high-precision performance indicator data, such as packet loss rate and latency (in nanoseconds),and send the analysis results to iMaster NCE-Fabricinsight for further analysis and display. This facilitates network statusmonitoring and rapid locating of network faults.
* CloudEngine 8800 serles switches suppot RoCE trafic visualizatlon. They can analyze the key performance indicators (KPls)of RoCE traffic, lincluding quallty of servlce (QoS) indicators such as the trafic path, round trip time (RTT), throughput, packetloss rate, abnormal sessions, and top sessions. in addition, the RoCE network topology of each network node and thresholdsettings of intelligent lossless DCNs such as the EcN thresholds can be displayed in an intuitive manner. The resultingbenefits include better network parameter settings, faster network fault locating, and improved network confiquration and O&Mefficiency.
Simplified DCN deployment via collaboration with iMaster NCE-Fabric
* CloudEngine 8800 series switches can interconnect with ilMaster NCE-Fabric through standard protocols such aS NETCONFand Simple Network Management Protocol (SNMP) to adapt to networks and implement automatic network management andcontrol. This helps to provide more eficient and intelligent operation methods, simpliflying network management and reducingthe OPEX.
Flexible airflow design, improving energy efficiency
* Flexible front-to-back or back-to-front airflow design: CloudEngine 8800 series switches use a strict front-to-back or back-to-front airiow design that isolates cold air channels from hot air channels, meeting heat dissipation requirements in DC equipment rooms.
Air can flow from front to back or from back to front depending on the fan modules and power modules in use
Redundant power modules and fan modules can be configured to ensure service continuity.
* Innovative energy-saving technologies:
CloudEngine 8800 series
switches use energy-saving chips and an lintellgent fan speed control scheme to measure system power consumption in real time. This can reduce O&M costs and help to build a green DC.
Clear indicators, simplifying O&M
* Clear indicators: The innovative port indicators can clearly show the port status, port speed, and status of all sub-interfaces
State and stack indicators on the front and rear panels enable users to maintain the switch from either side.
CloudEngine 8800 serles switches support remote positioning. Users can turn on the remote positioning indicatorthrough the network management system (NlMS) or console to easlly ldentify the switch they want to malntaln in anequipment room full of devices.
* Easy maintenance: The management port, fan modules, and power modules are at the front side, which facilitates device maintenance.
Data ports are located at the rear, facing servers, This facilitates cabling.
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