H19-338 HCPP-Storage Question and Answers

BGP EVPN is a control plane protocol that can be used for VXLAN networks . VXLAN is a technology that creates overlay networks to extend Layer 2 connectivity across Layer 3 networks . BGP EVPN has the following functions as a VXLAN control plane protocol:

• It automatically establishes the VXLAN tunnel between VTEPs (VXLAN Tunnel Endpoints), which are devices that encapsulate and decapsulate VXLAN packets . You do not need to manually configure a full-mesh tunnel between all VTEPs, which reduces the configuration complexity and improves the scalability .
• It advertises host routes and MAC address entries on the control plane, which are used to learn the location of hosts and their corresponding VTEPs . This reduces the unknown traffic flooding that occurs when the destination MAC address is unknown, and optimizes the packet forwarding by using optimal paths .
• It implements Layer 2 interconnection between data centers in different networking modes, such as bridging, routing, or integrated routing and bridging (IRB) . This enables seamless communication between hosts in different subnets or VLANs across data centers .
• It advertises subnet routes to implement Layer 3 interconnection of data centers through VXLAN tunnels . This enables routing between different subnets or VLANs across data centers without requiring an external gateway device .

Free mobility is supported on a hybrid network consisting of Huawei and third-party devices, and the authentication point can be deployed on third-party devices. According to the Huawei CloudCampus Solution Description, free mobility is a feature that allows users to access network resources without changing their IP addresses or VLANs when they move within a virtual network (VN). Free mobility can be implemented on a hybrid network by using VXLAN tunneling technology and policy association.

The switch that does not support iStack is S1730S-H. This is because the S1730S-H does not have any stack ports or support stack cards. The iStack technology allows multiple switches to be connected and managed as a single logical device, which improves network scalability and reliability.

The built-in LAN ports on all Huawei NetEngine AR6000/600 series routers can be used as WAN ports. According to the NetEngine AR6000 Series Enterprise Routers Product Overview, NetEngine AR6000/600 series routers support flexible WAN/LAN port configuration, which allows users to use any built-in LAN port as a WAN port.

RU-5G-101 supports independent deployment. According to the Huawei RU-5G-101 Datasheet2, RU-5G-101 is a high-speed wireless WAN access component that provides 5G wireless broadband access services for enterprises to implement wireless high-bandwidth data transmission. An RU-5G can be deployed independently to provide basic router functions.

The free mobility function allows users to obtain the consistent network access policy regardless of their location and IP address, but it does not require the network to be made up entirely of Huawei devices. According to the Huawei CloudCampus Solution Description, free mobility is supported on a hybrid network consisting of Huawei and third-party devices, and the authentication point can be deployed on third-party devices.

The WAN-side controller can manage only WAN services, not LAN services. The LAN-side controller can manage both LAN and WAN services. This is because the LAN-side controller supports both SD-WAN and SD-Campus functions, while the WAN-side controller only supports SD-WAN functions.

next-generation NetEngine AR routers are intelligent edge routers that provide comprehensive services for enterprises, such as WAN access, SD-WAN, VPN, voice, video, security, cloud interconnection, and IoT . They have several strengths that differentiate them from other products in the market, such as:

• Incorporating an industry-leading CPU+NP architecture, providing industry-leading L3 to L7 full-service efficient processing. The CPU+NP architecture combines the advantages of both CPU-based general-purpose processing and NP-based hardware acceleration, enabling high-performance processing of various services at different layers .
• Incorporating iPath (application-based intelligent traffic steering & optimization) and A-FEC {no frame freezing or artifacts even at a 20% packet loss rate). iPath is a technology that intelligently steers traffic based on application types, quality requirements, link conditions, and policies, optimizing the user experience and resource utilization . A-FEC is a technology that enhances the error correction capability of video streams, ensuring smooth video transmission even under high packet loss scenarios .
• Offering three times the industry average performance based on x86. The next-generation NetEngine AR routers use x86 processors that deliver high computing power and scalability, enabling them to support more services and users with lower power consumption .
• Featuring multi-mode ZTP on-demand network orchestration; real-time fault alarms and 45+ visualized reports. The next-generation NetEngine AR routers support zero-touch provisioning (ZTP), which simplifies the network deployment and management process by automatically discovering, registering, configuring, and upgrading devices . They also support real-time fault alarms and 45+ visualized reports that provide comprehensive network monitoring and analysis capabilities .

The maximum single-radio rate supported by Wi-Fi 6 products is 9.6 Gbit/s. This is achieved by using 1024-QAM modulation, 160 MHz channel bandwidth, and 8 spatial streams1

SDR (Software Defined Radio) is a technology that can be used to switch the number of RFs (Radio Frequencies) dynamically. According to the Huawei AirEngine Wi-Fi 6 Solution White Paper, SDR enables an AP to dynamically switch between 2.4 GHz and 5 GHz bands based on the number of users and service requirements, improving spectrum utilization and user experience.

AirEngine 6760R-51E is a Wi-Fi 6 AP designed for rail transit scenarios. It supports 8x8 MU-MIMO and eight spatial streams, achieving a rate of up to 5.95 Gbit/s2. AirEngine 6761-21T is a Wi-Fi 6 AP designed for indoor scenarios such as offices and classrooms. AirEngine 6760-X1E is a Wi-Fi 6 AP designed for indoor scenarios such as hotels and shopping malls. AirEngine 6760-51EI is a Wi-Fi 6 AP designed for indoor scenarios such as stadiums and exhibition halls.

Compared with common Ethernet, the NOF+ scenario greatly improves usability and reliability. According to the Huawei CloudFabric Data Center Network Solution White Paper, NOF+ (Network-Oriented Fabric+) is a data center network architecture that supports both Layer 2 and Layer 3 connectivity between servers and leaf nodes. NOF+ uses VXLAN technology to create overlay networks on top of theunderlay network, which improves network scalability, flexibility, and security. NOF+ also uses M-LAG technology to provide link redundancy and load balancing between leaf nodes and servers, which improves network availability and performance.

Huawei AirEngine 8760X1-PRO is not Huawei’s flagship Wi-Fi 6 model. According to the Huawei AirEngine Wi-Fi 6 Solution White Paper, Huawei AirEngine 8760X1-PRO is a high-performance Wi-Fi 6 AP that supports 16 spatial streams and a rate of up to 10.75 Gbit/s, but it is not the flagship model. The flagship model is Huawei AirEngine 8760R-PRO, which supports 24 spatial streams and a rate of up to 16.13 Gbit/s.

NE8000 M14 cannot be deployed in a 300 mm-deep cabinet. According to the Huawei NetEngine 8000 M14 Routers Support Guide1, the NE8000 M14 requires a cabinet with a depth of at least 800 mm.

Huawei partners should establish a cyber security assurance system to ensure the cyber security of customers. According to the Huawei Cyber Security Assurance System White Paper, Huawei partners are required to comply with Huawei’s cyber security requirements and standards, implement cyber security management processes and controls, conduct cyber security audits and assessments, and report cyber security incidents.