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I. Scheme Overview

Network engineering is the core foundational project for the digital transformation of various scenarios such as enterprises, industrial parks, office buildings, and factories. It covers the entire process of construction including structured cabling, local area network (LAN) setup, full wireless coverage, routing and switching networking, network security deployment, system debugging and optimization, and acceptance and delivery.

To achieve standardized, normalized, and high-quality implementation of network engineering projects, and to effectively avoid common issues such as construction hidden dangers, network conflicts, operational lag, security vulnerabilities, and project delays, LianTengxun Technology has developed this comprehensive project management and execution plan based on years of industry project experience.

This plan is applicable to all types of network engineering projects, including new construction, renovation, expansion, and upgrades for enterprises. It clearly defines the general project matters, construction standards, management systems, implementation processes, quality control, and delivery specifications. We are committed to building a stable, high-speed, secure, scalable, and easy-to-maintain modern enterprise network architecture for our clients, supporting their long-term digital business development.

II. General Matters of Network Engineering

2.1 Project Construction Scope

LianTengxun Technology's network engineering project construction scope covers full-scenario, full-link network construction and operation and maintenance, including: Structured Cabling System (national standard network cables, optical fibers, patch panels, cabinets, trunking and pipeline laying), Core Switching Network (deployment and debugging of core switches, aggregation switches, and access switches), Routing Gateway System (enterprise routers, firewalls, Internet egress networking architecture setup), Wireless Coverage System (enterprise AP deployment, whole-house wireless roaming, frequency band optimization, signal enhancement), Network security System (access policy control, internal and external network isolation, port protection, virus and attack defense), internal network VLAN virtual segment division, refined IP address planning, full-network debugging and optimization, troubleshooting and rectification, comprehensive completion testing, and subsequent after-sales operation and maintenance support.

2.2 Project Construction Principles

All network engineering projects of LianTengxun Technology strictly adhere to six core construction principles to ensure long-term reliability of project quality: Stability, security, Compatibility, Scalability, Maintainability, and Standardization. The overall network architecture strictly complies with national industry standards and weak current engineering construction specifications. Equipment selection is compatible with mainstream network protocols, with sufficient expansion space reserved to support future bandwidth upgrades, point additions, system iterations, and business expansion. The entire construction process features neat cable routing, standardized wiring, clear labeling, and complete records, greatly reducing the difficulty of future operation, maintenance, troubleshooting, and iterative transformation.

2.3 Project Risks and Construction Precautions

1. Conduct refined on-site surveys before construction to comprehensively inspect building structures, weak current channels, and equipment room environments, avoiding hidden dangers such as strong electrical interference, wall occlusion, and line cross-interference, and optimize the construction plan in advance.
2. Scientifically plan IP network segments and VLAN partitions to strictly isolate different business networks, eliminating internal network IP conflicts, broadcast storms, network lag, and disconnections from the source.
3. Conduct on-site surveys in advance for wireless access points to assess signal attenuation and occlusion, accurately positioning device installation locations to completely eliminate wireless faults such as signal blind spots, roaming lag, and switching delays.
4. Implement line labeling, label filing, and standardized cabinet cable management throughout the process, with all line points corresponding one-to-one, ensuring the project is fully traceable and reviewable for easy future operation and maintenance management.
5. Establish a hierarchical security protection strategy to independently isolate office networks, financial networks, guest networks, and the Internet of Things (IoT) for devices, effectively preventing internal network lateral attacks, unauthorized access, and enterprise data leakage risks.
6. Strictly control construction quality throughout the entire process to eliminate construction quality issues such as loose line connections, short circuits, incorrect wire sequences, excessive optical fiber loss, and loose equipment, ensuring long-term stable network operation.

III. Project Management System

3.1 Personnel Structure and Job Responsibilities

LianTengxun Technology establishes a dedicated project team to follow up on project implementation one-on-one throughout the process. The team is fully equipped with clear division of labor and well-defined responsibilities to ensure efficient project progress:

1. Project Manager: Oversees the overall project schedule, construction costs, project quality, communication between Party A and Party B, risk prediction and control, and manages the project implementation rhythm throughout to ensure on-time and quality delivery.
2. Network Engineer: Responsible for on-site requirement analysis, network solution design, network topology planning, equipment parameter configuration, and tackling technical challenges, ensuring the technical solution is compliant, reasonable, and suitable for the enterprise's business scenarios.
3. Construction Technician: Holds valid certificates and is responsible for on-site construction work such as pipeline laying, equipment installation, cabinet racking, cable splicing, and standardized cable management, strictly implementing construction specifications.
4. Testing and Acceptance Specialist: Responsible for comprehensive completion testing, data recording, fault rectification, document compilation, and completion acceptance coordination, strictly controlling delivery standards.
5. After-sales Operation and Maintenance Specialist: Responsible for daily inspections, network optimization, emergency repairs, technical consultation, and iterative upgrade support after project delivery, providing long-term operation and maintenance guarantees.

3.2 Schedule Management Mechanism

The project adopts a standardized phased node control model, dividing the overall project into seven core nodes: On-site Survey and Design, Material Entry Inspection, On-site Construction and Wiring, Equipment Installation and Deployment, System Debugging and Configuration, Comprehensive Testing and Acceptance, and Document Archiving and Delivery. Each node has a clear completion time limit, construction standard, and acceptance requirement. The project manager follows up and supervises throughout, providing real-time progress updates and promptly addressing construction issues to eliminate project delays and ensure on-time delivery.

3.3 Quality Management System

LianTengxun Technology implements full-process quality control to create standardized high-quality projects: All incoming materials and network equipment are strictly inspected for brand, model, parameters, and warranty qualifications to eliminate inferior materials and refurbished equipment; The entire construction process is supervised by dedicated personnel to standardize wiring techniques, optical fiber splicing techniques, and equipment installation techniques, eliminating non-standard construction; After project completion, a series of tests are conducted including line continuity testing, optical fiber loss testing, full-network speed testing, long-term stability stress testing, and security policy effectiveness testing. All indicators must reach 100% compliance before acceptance and delivery, ensuring project quality from the source.

3.4 Safety Management Specifications

On-site construction strictly adheres to site safety regulations and weak current construction safety guidelines, implementing measures for electrical safety, high-altitude operation safety, and wall construction protection to prevent construction safety accidents; Equipment configurations are backed up in real-time throughout the process to prevent configuration loss and accidental deletion or modification of system data; Network deployment strictly isolates internal and external networks, closes idle high-risk ports, disables risky services, and builds a multi-layered security protection system to comprehensively ensure the operational security of the enterprise network and the security of core data.

IV. Full-Process Project Execution

Phase 1: On-site Survey and Requirement Confirmation
After the project officially starts, LianTengxun Technology's technical team conducts an on-site survey to accurately count the enterprise's office locations, equipment room positions, weak current cable routes, and building occlusion structures. Combining the enterprise's number of employees, internet access requirements, business system operation requirements, and wireless usage scenarios, we accurately confirm the network architecture, equipment specifications, number of access points, bandwidth configuration, and security protection standards. A complete list of requirements is compiled, and a "Project On-site Survey Report" is issued to provide an accurate basis for the solution design.

Phase 2: Solution Design and Budget Finalization
Based on the on-site survey results and the client's core requirements, LianTengxun Technology customizes a personalized network engineering implementation plan. The content covers the overall network topology, VLAN segment planning, refined IP address allocation, full wireless coverage solution, network security strategy, detailed equipment list, standardized construction process, project schedule, and quality acceptance standards. A precise project budget is issued simultaneously, and after full communication and optimization with the client, the final plan is finalized as the sole official basis for subsequent construction, debugging, and acceptance.

Phase 3: Material Procurement and Pre-construction Preparation
Strictly follow the finalized equipment list in the plan to purchase new, genuine network equipment, national standard cables, and supporting accessories. Each item is inspected for model, parameters, warranty certificates, and qualification certificates to ensure all materials are compliant and up to standard. Coordinate with the client in advance to arrange construction time, clear the site environment, reserve weak current channels, organize equipment room space, and complete pre-construction preparation work such as construction protection and safety disclosure to ensure the project starts smoothly and progresses orderly.

Phase 4: On-site Standardized Construction
Carry out full-process standardized construction in strict accordance with national weak current engineering construction specifications: Prioritize the laying and fixing of weak current trunking and pipelines; Carry out network cable and optical fiber routing, threading, and splicing operations; Complete the installation and debugging of wall panels and network modules; Perform cabinet racking, equipment fixing, and cable organization and binding; Implement separation of strong and weak currents, unified label identification, and point record keeping throughout the process to ensure neat cable routing, clear labeling, and standard 工艺，eliminating all non-standard construction practices.

Phase 5: Equipment Debugging and Network Configuration
After all on-site construction is completed, the technical team conducts refined configuration and debugging of the entire network system: Complete parameter configuration for core, aggregation, and access switches at all levels; Deploy router and firewall security policies, internet behavior management, and intelligent traffic control; Implement VLAN division, port isolation, IP binding, and access control; Debug wireless AP signals, optimize frequency bands, and calibrate wireless roaming parameters; Complete internal network interconnection, external network dial-up, and full-network permission testing to ensure the network is fully connected, operates stably, and is free of conflicts and lag.

Phase 6: Comprehensive Testing and Special Optimization
After project completion, conduct comprehensive and multi-dimensional completion testing, including: Line continuity testing, accurate optical fiber loss testing, LAN transmission rate testing, external network bandwidth speed testing, long-term network stress stability testing, full wireless coverage testing, roaming stability testing, network security vulnerability scanning, and security policy effectiveness verification. Address issues found during testing such as lag, delay, weak signals, network conflicts, and security risks with special rectification and optimization to ensure all network performance, security, and stability meet standards and satisfy the enterprise's office and business operation needs.

Phase 7: Project Acceptance, Document Archiving, and Official Delivery
After project optimization is completed, LianTengxun Technology compiles a complete set of completion documents, including network topology diagrams, point distribution maps, equipment configuration documents, complete equipment lists, completion test reports, construction records, and warranty certificates. We cooperate with the client to conduct the overall completion acceptance, verifying construction quality, network performance, and security configurations item by item. After passing the acceptance, the project is officially delivered. The complete set of archived documents, equipment warranty instructions, and operation and maintenance guide are delivered simultaneously, and after-sales operation and maintenance support services are initiated.

V. After-sales Guarantee and Long-term Operation and Maintenance Services

After project delivery, LianTengxun Technology provides clients with long-term, stable, and comprehensive warranty and operation and maintenance services: All project equipment enjoys official original manufacturer warranty services; Provide 7×24-hour technical consultation, fault response, and emergency repair services; Conduct regular remote network inspections, performance testing, policy fine-tuning, and network optimization; Provide free technical solution planning and technical support for the enterprise's future network upgrades, point expansions, architecture adjustments, and business iterations; Rapidly handle various sudden network failures to comprehensively ensure the long-term stable, efficient, and secure operation of the enterprise network.

VI. Scheme Summary

This plan covers the entire lifecycle of network engineering projects, from survey, design, material preparation, construction, debugging, testing, acceptance, to after-sales service. It is the core specification of LianTengxun Technology's standardized project implementation system. Through standardized management, refined construction, and full-process quality control, various construction hidden dangers and quality problems in network engineering can be effectively avoided, ensuring that every network project is delivered to high standards and high quality.

With a professional technical team, mature project experience, and a comprehensive service system, LianTengxun Technology is committed to helping enterprises build a high-speed, stable, secure, and scalable modern network system, comprehensively supporting their digital transformation and long-term stable development.