Huawei HCSP-Presales-Campus Network Planning and Design V2.0 H19-401_V2.0 Exam Dumps: Updated Questions & Answers (April 2026)

To manage massive-scale deployments (such as retail chains with thousands of stores), iMaster NCE-Campus utilizes Hierarchical Configuration . Administrators can define a Parent Template with global settings (e.g., DNS, NTP, Security standards) and create Child Templates for specific regions or sites. The child templates automatically inherit all settings from the parent, allowing the administrator to only configure the "differentiated" parts (e.g., local subnets or SSIDs), which drastically reduces configuration errors and deployment time.

In a modern campus network, unified identity management is critical. iMaster NCE-Campus acts as a RADIUS and Portal server that integrates with existing enterprise directories. It supports synchronization and authentication against Microsoft Active Directory (AD) , LDAP , and third-party databases via standard protocols. This enables features like SSO (Single Sign-On) and ensures that user permissions are consistent with their existing corporate credentials.

The Xinghe Intelligent Campus for retail focus on four key areas:

SD-Branch (A): Unified management of WAN, LAN, and WLAN for small stores.

Converged IoT (B): Using APs with built-in IoT slots for Electronic Shelf Labels (ESL) or RFID asset tracking.

Hyper-converged Gateway (C): Using devices like the AR series that combine routing, switching, security, and a wireless controller into one box to save space.

Plug-and-play (D): Zero-touch provisioning (ZTP) so that non-technical store staff can simply plug in a device and have it configured automatically by the cloud.

By default, Virtual Networks (VNs) are isolated from one another as they exist in separate VRFs. To enable inter-VN communication:

Internal Route Leaking (C): Routes are imported/exported between VRFs on the Border Node .

External Traffic Steering (D): Traffic is sent out of the Fabric through the Border Node to an external Firewall or Gateway , which then routes the traffic back into the second VN. This is the preferred method when security inspection between VNs (e.g., Guest VN to Office VN) is required.

Huawei’s terminal identification system (used in iMaster NCE-Campus for fingerprinting IoT devices) officially utilizes 7 distinct methods to ensure high accuracy:

MAC OUI: Identification by the vendor prefix of the MAC address.

HTTP User-Agent: Extracting device info from browser headers.

DHCP Option: Identifying devices based on DHCP request parameters (e.g., Option 55/60).

LLDP: Using Link Layer Discovery Protocol info.

mDNS: Identifying Apple and other smart devices via multicast DNS.

SNMP Query: Actively reading MIBs from terminals.

Nmap/Proactive Scanning: Actively probing open ports and OS fingerprints.

For mid-to-large campus fabrics (typically those with more than 10-15 edge devices), Huawei recommends Dual-OSPF-area orchestration (C) for the underlay network. In this design, Area 0 is usually established between the Core (Border) and Aggregation nodes, while Area 1 (or other non-zero areas) is used between the Aggregation and Edge nodes. This hierarchy limits the scope of Link State Advertisements (LSAs), preventing a single link flap at the edge from causing a full SPF recalculation across the entire network backbone, thus enhancing stability.

Stacking (iStack) is a key reliability technology for the access and aggregation layers. By connecting multiple switches into a single logical unit, the network gains device-level redundancy . If one switch in the stack fails, the other member switches continue to forward traffic. Furthermore, it allows for the use of Inter-device Eth-Trunk (link aggregation across different physical switches), which prevents loops without the need for STP, leading to faster convergence and higher network availability.

To ensure "Proactive O & M," iMaster NCE-Campus supports a wide array of notification channels via its Northbound Interface (NBI). It can integrate with third-party gateways to send SMS (A) and Email (D) , and it provides native integration or Webhook support for popular enterprise collaboration tools like DingTalk (B) and WeChat (C) . This allows IT staff to receive critical network alerts immediately on their mobile devices.

In the Huawei SD-WAN architecture, the RR (Route Reflector) is responsible for distributing VPN routes and tunnel information. While in large-scale deployments the RR is often a standalone high-performance router or a virtual machine in the cloud, in small and medium-sized deployments, a physical CPE (Customer Edge) device can function as the RR. This "collocated" mode reduces hardware costs and simplifies the network hierarchy for smaller organizations.

For high-density and large-scale environments, the Native WAC (integrated into the core switch software/hardware, like on the S12700E or S16700) is the preferred recommendation. Unlike a standalone AC, a Native WAC leverages the massive switching capacity of the core switch's forwarding chips to process wireless data at line rate. It simplifies the network by eliminating the need for external AC hardware and provides the scalability required to manage thousands of APs and tens of thousands of terminals within a single management framework.