Network Implementation Planning

For a large national corporation with a large number of locations and a third-party hosting location, ensuring the safest, fastest, and easiest network configuration for monitoring and operating various Building Automation Systems (BAS) and IoT systems involves a combination of modern networking technologies and best practices. Network Architecture, Centralized Management with Distributed Control, A robust core network at the third-party hosting location to manage central operations. Deploy edge devices at each location for local control and data aggregation. Use SD-WAN (Software-Defined Wide Area Network) to provide centralized management, policy control, and dynamic routing across all locations. SD-WAN enhances security, optimizes bandwidth, and improves connectivity. Ensure redundant internet connections at each location to avoid downtime. Failover Mechanisms: Implement failover mechanisms to switch to backup systems seamlessly during outages. VLANs and Subnets: Use VLANs and subnets to segregate BAS and IoT traffic from other corporate network traffic. Implement micro-segmentation to provide fine-grained security controls within the network. Next-Generation Firewalls (NGFW): Deploy NGFWs to protect against advanced threats. Intrusion Detection and Prevention Systems (IDPS): Implement IDPS to monitor and prevent malicious activities. Secure Remote Access, Use VPNs for secure remote access to the BAS and IoT systems. Zero Trust Network Access (ZTNA): Adopt ZTNA principles to ensure strict identity verification before granting access. Performance Optimization Traffic Prioritization: Use QoS policies to prioritize BAS and IoT traffic to ensure reliable and timely data transmission. Implement edge computing to process data locally and reduce latency. Aggregate data at the edge before sending it to the central location, reducing bandwidth usage. Ease of Management, Use a unified management platform to monitor and manage all network devices, BAS, and IoT systems from a single interface. Automate routine tasks and use orchestration tools to streamline network management. Design the network with scalability in mind to easily add new locations or devices. Integrate with cloud services for scalable data storage and processing. Recommended Technologies and Tools, Cisco Meraki for SD-WAN, security, and centralized management. Palo Alto Networks for advanced firewall and security solutions. AWS IoT or Azure IoT for cloud-based IoT management and edge computing capabilities. Dell EMC or HP Enterprise for robust server and storage solutions. Implementation Strategy, Conduct a thorough assessment of existing infrastructure and requirements. Develop a detailed network design and implementation plan. Implement a pilot at a few selected locations to test the configuration and performance. Gradually roll out the network configuration to all locations.

🔧 Real-World Network Implementation Using MikroTik Routers – Static Routing, DHCP & VLAN Configuration I successfully implemented a real device-based network setup using two MikroTik routers, focusing on practical network design, configuration, and troubleshooting. This project enhanced my hands-on skills in routing, IP management, and network segmentation using MikroTik RouterOS. ✅ Project Highlights: Configured static routing between two MikroTik routers to enable communication across multiple networks. Set up and managed DHCP servers on each router for dynamic IP address distribution. Created and assigned two VLANs to segment traffic and improve network performance and security. Connected switches, routers, and multiple end devices, verifying full connectivity and routing accuracy. Used MikroTik Winbox and CLI to configure interfaces, bridges, IP routes, and DHCP services. Conducted real-time network testing and troubleshooting to ensure stable, secure, and efficient communication. 🛠️ Technologies & Tools: MikroTik Routers and Switches RouterOS, Winbox, and Terminal Static Routing, DHCP, VLAN Tagging Ethernet Cabling & Patch Panels This project gave me strong hands-on experience in building and managing real network infrastructure—essential for any aspiring Network Engineer or System Administrator working with MikroTik and enterprise network environments.

Building a Resilient, Secure, and Scalable Enterprise Network : Over the past few days, I’ve been working on designing and implementing a multi-layer, redundant network architecture that balances performance, security, and high availability. Here’s what the setup includes: 🔹 Layer 3 Core Switching with HSRP for gateway redundancy 🔹 LACP Link Aggregation between core switches for bandwidth and failover 🔹 FortiGate Firewall with SD-WAN for dual ISP load balancing and failover 🔹 VLAN Segmentation (10, 20, 30) for access control and traffic isolation 🔹 DHCP Failover across core switches for uninterrupted IP assignment 🔹 Windows Server with NIC Teaming for redundancy and higher throughput 🔹 SSH-enabled switches for secure remote management 🔹 Port Security & DHCP Snooping to prevent MAC spoofing and rogue DHCP servers 🔹 Spanning Tree PortFast for faster host connectivity 🔹 DMZ Implementation for secure server hosting (Domain Controller) 🔹 User workstations successfully joined to the Domain Controller for centralized authentication and policy management . 💡 Key Benefits: ✅ High availability through dual ISPs, redundant gateways, LACP, and NIC teaming ✅ Improved security with VLAN isolation, port security, and DHCP snooping ✅ Better network performance via traffic segmentation and load balancing ✅ Secure administration through SSH-based switch management ✅ Centralized user management and authentication through Active Directory integration ✅ Future-ready architecture to scale with business growth This project was a great opportunity to merge security best practices with network redundancy techniques, ensuring both uptime and protection. #Networking #Cisco #FortiGate #SDWAN #HSRP #DHCP #LACP #PortSecurity #VLAN #NetworkSecurity #ITInfrastructure #NetworkEngineering #WindowsServer #NICTeaming #SSH #ActiveDirectory

HQ–DC Network Automation Project (Two-Tier HQ + Three-Tier DC) - Complete YouTube Series + GitHub Repository Released Over the last weeks, I’ve been building and documenting a real-world HQ + Data Center network automation project, focusing on designing, automating, and validating a production-style enterprise network. This series is not “just theory”, it’s fully hands-on and aligned with real enterprise environments. YouTube Series Includes: ✔️ Part 1 – Architecture Overview & Project Scope https://lnkd.in/dmYBHifr ✔️ Part 2 – Network Automation Strategy & Tools https://lnkd.in/d5zN-qZa ✔️ Part 3 – Implementation + Practical Automation Workflows https://lnkd.in/dWnQNSRG ✔️ Part 4 – Finalization, Testing & Validation https://lnkd.in/ddntC8Ke GitHub Repository: Includes topology, configs, automation scripts, examples, and resources to follow along. 🔗 Repository Link: https://lnkd.in/d5S7Him5 If you’re interested in Network Automation, NetDevOps, Enterprise Networking, or Real-World Project Learning, this series will be valuable for you. Happy to receive your feedback, questions, or thoughts #NetworkAutomation #NetDevOps #Cisco #DataCenter #InfrastructureAsCode #Python #Ansible #Automation #Networking #DevOps #CCIE #Engineers #DatacenterNetworking #YouTube #GitHub

🔧 Enterprise Network Infrastructure Design – Ready for Implementation I'm excited to share a detailed topology design for a highly available, multi-area enterprise network that I have carefully planned and will be implementing soon. This project combines core network segmentation, efficient routing protocols, security zoning, and city-wide distribution — all structured for performance, scalability, and reliability. 🌐 Project Overview This infrastructure supports two major enterprise areas (Area 1 & Area 2), each with its own LAN and DMZ zones, interlinked through a Backbone Area 0 using OSPF routing protocol, and extended further to city clusters via RIP v2 redistribution. 🔻 Key elements included in this design: ✔DMZ Zones for hosting servers (Web, Email, DNS, SQL, Storage) securely separated from the internal LAN. ✔LAN Segments for internal users, printers, VoIP phones, and city offices. ✔Firewall Integration at all major ingress/egress points. ✔Zone-A and Zone-B connecting 6 remote cities via dedicated routers and Core sites. ✔Multiple Clouds and Cellular Backup solutions. 🔻Routing Protocols: ✔OSPF: Backbone and Area connections ✔RIP v2: Used in city-wide and rural-area links ✔Redistribution between protocols ensures seamless communication. 🧩 Technical Highlights ✅ VLAN segmentation for traffic control ✅ Server roles distributed in DMZ for scalability ✅ Dual-layer firewall architecture for security ✅ Dynamic routing via OSPF and RIP with redistribution at the core ✅ Cloud and cellular integration for redundancy ✅ IP schema and subnetting well-documented ✅ Suitable for enterprise, governmental, or multi-branch organizations 📌 Current Status ✅ Design Phase: Completed 🚀 Implementation: Starting Soon 💬 Feedback & Collaboration If you're a network professional or enthusiast, feel free to share your thoughts or suggestions on the design. 📩 Drop a comment below if you spot any area that could be improved or optimized before deployment. Your input is valuable! 🔹Telegram https://lnkd.in/djw9emVb 🔁 #Networking #OSPF #EnterpriseNetwork #NetworkDesign #Infrastructure #Cisco #RIPv2 #Routing #Firewall #GNS3

#AdvancedNetworking - HLD and LLD in Network Design In network design, High-Level Design (HLD) and Low-Level Design (LLD) are two key frameworks for building robust and scalable architectures. Here’s an advanced look at how these approaches complement each other: High-Level Design (HLD): HLD is the blueprint of your network’s architecture. It outlines the big-picture view, focusing on the core components and how they interact. Objective: Provide an overview of the overall system or architecture. Components: Network topology diagrams (logical and physical) Key elements like core, distribution, and access layers IP addressing schemes and high-level routing strategies Scalability, redundancy, and failover planning Focus: Addresses "what" components are needed (e.g., routers, switches, firewalls) and "how" they should interconnect to meet business requirements. Output: A structured, high-level document offering clarity to stakeholders and guiding the detailed design process. Low-Level Design (LLD): LLD breaks down the HLD into granular, detailed configurations and technical specifications. Objective: Provides detailed instructions for implementing the system. Components: Device-specific configurations (e.g., VLAN setup, IP routing protocols) Specific hardware models, firmware versions, and interface configurations Protocols to be used (e.g., OSPF, BGP, MPLS) Security policies (firewall rules, ACLs) Network performance metrics and detailed IP addressing tables Focus: Covers "how" each device will be configured and deployed, with a step-by-step guide for network engineers. Output: A comprehensive, technical document used by implementation teams to configure and deploy the network. HLD vs LLD: Key Differences HLD: Strategic, high-level, and business-focused (the "what" and "why"). LLD: Tactical, detailed, and implementation-focused (the "how" and "where"). Best Practices for HLD & LLD: Alignment: Ensure HLD and LLD are closely aligned with business goals and technical requirements. Redundancy & Failover: Always account for redundancy, scalability, and failover mechanisms in both designs. Documentation: Keep both HLD and LLD documents up-to-date as network changes are made. Conclusion: Both HLD and LLD are essential for ensuring that network designs are both strategically sound and technically accurate. Mastering both levels is key to delivering resilient, scalable, and high-performing networks. #HLD #LLD #NetworkArchitecture #Cisco #NetworkDesign #NetworkEngineering #CloudNetworking #EnterpriseNetworking