Huawei H19-338 HCSP-Presales-Storage Exam Practice Test

The CloudEngine S5736-S is a new-generation 10GE multi-rate switch launched by Huawei. It supports native AC (Access Controller) function, which enables it to manage up to 1024 APs and provide wireless services for up to 16K users.

AirEngine 8760-Xi-PRO is Huawei’s flagship Wi-Fi 6 product that has a unique industrial design with features such as an 18-degree angle of tilt for network ports and optical ports, a shark fin bionic heat dissipation channel, and a removable cover for IoT card installation . These features are designed to improve the performance, reliability, and convenience of the product. Easy and flexible is not an industrial design feature of the AirEngine 8760-Xi-PRO, but rather a general description of its deployment and management capabilities .

CloudEngine S1270OE-O8 provides eight LPU slots, four SFU slots, two MPU slots, two CMU slots, and six power module slots1.

iMaster NCE-FabricInsight is a network analysis platform that provides intelligent O&M for data center networks . It has the following features:

1-3-5 intelligent O&M: This is a methodology that enables network administrators to locate faults within 1 minute, identify root causes within 3 minutes, and rectify faults within 5 minutes . It uses AI algorithms and big data analysis to provide proactive fault prevention, rapid fault location, and intelligent fault recovery .

Network health check: This is a function that monitors the network status and performance in real time, and provides comprehensive network health reports and suggestions for improvement . It uses various indicators such as availability, reliability, latency, jitter, packet loss, and bandwidth utilization to evaluate the network health .

Flow analysis: This is a function that collects and analyzes the network traffic data, and provides granular visibility into the network flows and applications . It uses technologies such as sFlow, NetStream, and Telemetry to obtain the flow information, and supports features such as flow path tracing, flow quality analysis, flow anomaly detection, and flow optimization .

AI-scenario data visualization: This is a function that displays the network data in a visual and interactive way, and provides insights into the network behavior and trends . It uses technologies such as graph databases, natural language processing, and machine learning to present the network data in various scenarios, such as topology views, service views, device views, alarm views, and report views .

Capacity/traffic risk prediction: This is a function that predicts the future network capacity and traffic demand based on historical data and trend analysis, and provides suggestions for network planning and optimization . It uses technologies such as time series analysis, regression analysis, and neural networks to forecast the network growth and identify potential risks .

CloudEngine S5731-H supports VxLAN. It can implement Layer 2 and Layer 3 gateways for VxLANs, support centralized and distributed gateways, and interwork with BGP-EVPN to implement inter-subnet communication between VxLANs3. CloudEngine S5731-H delivers a switching performance of 336 Gbit/s3. CloudEngine S5731-H supports MPLS and can provide L2VPN and L3VPN services based on MPLS tunnels. CloudEngine S5731-H supports 2-port 40GE and 8-port 10GE optical/electrical cards that can be installed in the extended slot

 CloudEngine S7700 switches support service port clustering and CSS2 switch fabric clustering. According to the CloudEngine S7700 Series Switches Datasheet, service port clustering enables multiple physical ports to form a logical port that provides higher bandwidth and link redundancy, while CSS2 switch fabric clustering enables multiple switches to form a logical switch that provides higher performance and simplified management.

iMaster NCE-FabricInsight is Huawei’s intelligent O&M software that can provide network-wide visibility, intelligent analysis, and automated O&M for data center networks. iMaster NCE-FabricInsight can collect data from various sources, such as SNMP, Telemetry, Syslog, sFlow, and iFIT. It can also use AI algorithms to detect anomalies, locate faults, predict risks, and optimize performance. iMaster NCE-FabricInsight can also automate network configuration, deployment, verification, and recovery.

M-LAG can be deployed on server leaf nodes in NOF+ scenarios. 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. M-LAG (Multi-Chassis Link Aggregation Group) is a technology that enables multiple leaf nodes to form a logical device that provides high availability, load balancing, and simplified management.

CloudCampus Solution is a cloud-based network management platform that provides plug-and-play of devices using three common deployment modes: QR code scanning for deployment, DHCP Option 148, and registration query center deployment . QR code scanning for deployment allows users to scan the QR code on the device label using a mobile app and automatically add the device to the cloud platform . DHCP Option 148 allows devices to obtain the cloud platform address from a DHCP server and automatically register with the cloud platform . Registration query center deployment allows devices to obtain the cloud platform address from a registration query center server and automatically register with the cloud platform . These deployment modes simplify the network configuration and management process and reduce the OPEX .

Huawei ranked No.1 in the Wi-Fi 6 standard working group in the number of proposals. According to the Huawei AirEngine Wi-Fi 6 Solution White Paper, Huawei has submitted more than 240 proposals to the IEEE 802.11ax (Wi-Fi 6) standard working group, accounting for 15% of all proposals.

The leader AP does not establish a CAPWAP tunnel with the fit AP. The leader AP communicates with the fit AP through the management VLAN, and the fit AP establishes a CAPWAP tunnel with the AC. In tunnel forwarding mode, user traffic needs to pass through the leader AP. In direct forwarding mode, user traffic is directly transmitted from the AP egress rather than from the leader AP. In tunnel forwarding mode, the leader AP can manage more fit APs than in direct forwarding mode.

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.

M-LAG (Multi-Chassis Link Aggregation Group) is the recommended networking mode for leaf switches. According to the Huawei CloudFabric Data Center Network Solution White Paper, M-LAG enables multiple leaf switches to form a logical device that provides high availability, load balancing, and simplified management.

CloudEngine S12700E does not support PoE. PoE is a technology that allows network devices to receive power from data cables instead of power cables. PoE is usually used for access switches that connect to devices such as IP phones and wireless APs, but not for core switches such as CloudEngine S12700E. A single CloudEngine S12700E can manage up to 10K APs by integrating native WLAN AC capabilities4. A single CloudEngine S12700E can manage up to 50K terminals by using free mobility feature that ensuresconsistent user experience across wired and wireless networks4. CloudEngine S12700E integrates hardware-based OAM/BFD to provide fast fault detection and location for various services such as Ethernet, IP, MPLS, and VxLAN

CloudEngine 16808 is a high-performance core switch designed for data center networks and high-end campus networks . It supports up to eight SFUs (Switch Fabric Units), which are responsible for data switching and forwarding . The SFUs work in 1+1 backup mode, ensuring high reliability and availability .

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.

Spine nodes are core nodes on the fabric network, but they do need to support VXLAN in some scenarios. According to the Data Center Networking: What It Is, Why It Matters, And Types article, VXLAN is a tunnel encapsulation technology that allows overlay networks to be created on top of the underlay network. Spine nodes need to support VXLAN when they act as gateways between different overlay networks or between overlay and underlay networks.

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.