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Step-by-Step: Automating Router Backups with Python Introduction Backing up router configurations is critical in telecom and enterprise networks. Traditionally, engineers log in manually and copy configs — a slow, error-prone process. With Python + Netmiko , we can automate backups for multiple routers in just a few lines of code. Requirements Python 3 installed on your system. Netmiko library ( pip install netmiko ). Router IP, username, and password. A text editor or IDE (VS Code, PyCharm, etc.). Engineers can automate repetitive tasks like backups using Netmiko and a few lines of Python. Step 1: Install Netmiko pip install netmiko Step 2: Create a Python Script Here’s a simple example for a Cisco router: from netmiko import ConnectHandler from datetime import datetime # Device info (edit to your environment) device = { "device_type": "cisco_ios", "host": "192.168.1.1", "usernam...

Python in Networking: Transforming Telecom in Bangladesh Python scripting helps automate telecom networks efficiently. Introduction Python has become the most popular programming language for network automation . In Bangladesh, telecom operators like Grameenphone, Robi, Banglalink, and Teletalk are adopting Python to automate thousands of routers and switches. This reduces manual work, minimizes errors, and speeds up deployments. Why Python for Networking? Simplicity: Easy to learn and beginner-friendly. Libraries: Rich networking modules (Netmiko, Paramiko, NAPALM, etc.). Multi-Vendor Support: Works across Huawei, Juniper, Cisco, ZTE. Community: Large global + Bangladeshi support groups. Automation with Python is transforming multi-vendor telecom infrastructure. Popular Python Libraries in Telecom Netmiko: Simplifies SSH connections to routers/switches. NAPALM: Vendor-neutral library for configs and monitoring. ...

The Role of Cloud Computing in Bangladesh’s Telecom Industry Cloud computing is changing how telecom operators plan, deploy, and deliver services. In Bangladesh, cloud-native approaches are helping operators launch digital products faster, scale on demand, and reduce costs. As 5G, IoT, and enterprise connectivity grow, cloud becomes the foundation that keeps networks agile, secure, and innovation-ready. Cloud-backed data centers enable elastic capacity for fast-growing telecom services. Why Cloud Matters for Telecom Cost Efficiency: Move from CapEx-heavy hardware to usage-based models that match traffic demand. Speed to Market: Roll out new products—like VoLTE add-ons, enterprise VPN, or TV streaming—in weeks. Elastic Scalability: Scale up during festivals or big sports events; scale down when traffic drops. High Availability: Cloud-native platforms add redundancy, observability, and automated fail...

The Future of IoT in Bangladesh’s Telecom Sector The Internet of Things (IoT) is reshaping telecom industries worldwide, and Bangladesh is no exception. With the rollout of 4G across the country and 5G on the horizon, telecom operators are exploring IoT solutions that can transform industries from agriculture and healthcare to transportation and smart cities. IoT enables billions of devices to communicate seamlessly. What Is IoT in Telecom? In simple terms, IoT connects physical devices —like sensors, vehicles, smart meters, and machines— to the internet. Telecom operators provide the network backbone (cellular, fiber, NB-IoT, LTE-M) to collect and transmit data, enabling automation and real-time decision-making. Current Status in Bangladesh Smart Meters: Power utilities are testing IoT-based meters for accurate billing and reduced theft. Agriculture: IoT sensors are being used for soil moi...

What Is Network Automation? A Beginner’s Guide for Students in Bangladesh The demand for faster, more reliable, and cost-efficient networks is growing rapidly in Bangladesh. From telecom operators and ISPs to universities and startups , everyone relies on modern networks. But configuring hundreds of routers and switches manually is slow and error-prone. This is where Network Automation helps—by using software and scripts to manage devices consistently and at scale. Automation reduces manual work and speeds up network operations. What Is Network Automation? Network automation is the use of software, APIs, and scripts to configure, test, and operate network devices such as routers, switches, firewalls, and load balancers. Instead of logging into each device and typing commands, engineers define the desired state in code and push it to many devices at once. A Simple Python Example # Example: Us...

Huawei vs Juniper Routers: Which is Better for ISPs in Bangladesh? Internet Service Providers (ISPs) in Bangladesh face constant challenges to deliver reliable, high-capacity, and affordable connectivity . Two of the most widely used router vendors in the market are Huawei and Juniper . Both are global networking giants, but which one is better for ISPs in Bangladesh? Let’s compare based on technology, performance, cost, and support . 1. Technology and Architecture Huawei: Strong presence with NetEngine and NE40E series routers. Uses NP (network processors) optimized for high throughput and integrated SDN features. Juniper: Known for the MX Series and PTX Series . Built on Junos OS , which is highly stable and preferred by many Tier-1 ISPs globally. Verdict: Huawei offers tight hardware-software integration, while Juniper provides flexibility and an OS widely respected in telecom. 2. Perfor...

How Banglalink is Preparing for 5G in Bangladesh Bangladesh is moving closer to 5G adoption , and among the country’s leading operators, Banglalink has taken major steps to prepare for this next-generation technology. With support from the Bangladesh Telecommunication Regulatory Commission (BTRC) , Banglalink has already conducted 5G trials and is planning large-scale deployment in the coming years. 5G Trials and Demonstrations In 2021, Banglalink became one of the first mobile operators in Bangladesh to successfully demonstrate 5G in collaboration with Huawei . During the trial: Data speeds reached over 1.5 Gbps on test devices. Latency was reduced to less than 10 milliseconds . Use cases such as remote education, telemedicine, and smart city applications were showcased. “We are committed to making Bangladesh a digital nation by embracing the opportunities of 5G,” said Erik Aas , ...

How to Configure a Basic Router with CLI in Bangladesh This step-by-step guide shows how to bring a small site or home office online using a typical Bangladesh ISP connection (often PPPoE or a static IP ). We’ll cover WAN setup, LAN, DHCP, NAT, DNS, basic security, and verification on Cisco IOS . MikroTik equivalents are included at the end. LAN (192.168.10.0/24) Clients / Wi-Fi AP / PC Router Gi0/0: LAN Gi0/1: WAN (PPPoE/static) ISP BDIX / Internet Ethernet PPPoE or DHCP/Static Simple topology: LAN → Router → ISP. Use PPPoE or a static/DHCP WAN as provided by your Bangladeshi ISP. What You Need A router with CLI (Cisco ISR/Catalyst IR, MikroTik, etc.). ISP handoff on Ethernet (ONT/media converter) with PPPoE username/password or static IP . Console/SSH access and a ter...

IPv6 Adoption in Bangladesh: Why It Matters and How to Migrate IPv6 enables end-to-end connectivity for people, devices, and services. Introduction IPv6 is the long-term solution to address exhaustion and network growth. For Bangladesh’s ISPs, mobile operators, enterprises, and universities, IPv6 brings better scalability, simpler networking, and improved customer experience. While many networks still run IPv4 with NAT, enabling IPv6 today reduces operational pain tomorrow. Why IPv6? Virtually unlimited addresses: No more CGNAT contention or private-address scarcity. End-to-end reachability: Easier peer-to-peer, voice, gaming, and IoT at scale. Efficient routing: Cleaner aggregation and simpler addressing plans. Modern features: SLAAC, extension headers, and better multicast support. Check platform support (ASIC, OS, CPE) and enable dual-stack where possible. IPv6 for Bangladesh: Who Benefits? Mobile Operators: Offload CG...

Fiber Optic Expansion in Bangladesh’s Telecom Industry { if(this.naturalWidth===0){ this.src='https://source.unsplash.com/1600x900/?fiber,optic,cable'; }},200);" > Fiber and network cabling powering high-speed connectivity. Introduction Fiber optic networks are the backbone of modern telecom infrastructure. In Bangladesh, operators like Summit Communications , BTCL , and many ISPs are rapidly expanding fiber footprints to power high-speed broadband, mobile backhaul for 4G/5G, and enterprise connectivity. Why Fiber Optics? High Bandwidth: Carries terabits of data over long distances. Low Latency: Essential for real-time apps, cloud, IoT, and 5G. Reliability: Immune to electromagnetic interference. Future-Proof: Scales with growing demand and new services. { if(this.naturalWidth===0){ this.src='https://source.unsplash.com/1600x900/?fiber,optic,light'; }},200);" > Close-up view of optical fibers used i...

SD-WAN in Bangladesh’s Telecom Networks: Benefits and Deployment SD-WAN concept illustration for telecom. Introduction Software-Defined Wide Area Network (SD-WAN) is emerging as a game-changer in Bangladesh’s telecom sector. It allows telecom operators to connect branch offices, data centers, and cloud applications using a secure, software-driven overlay network. How SD-WAN Works Secure Overlay: Runs over broadband, LTE/5G, or MPLS, ensuring encrypted and reliable traffic. Centralized Control: Operators manage traffic policies and QoS through SD-WAN controllers. Dynamic Path Selection: Routes traffic intelligently across the best available link. SD-WAN enables dynamic, secure network connectivity. Why SD-WAN Matters for Bangladesh Cost Efficiency: Uses cheaper broadband alongside MPLS for optimized connectivity. Cloud Adoption: Ensures better access to SaaS and cloud apps (Office 365, AWS, Azure). 5G Readiness: Works...

IoT in Telecom: Connecting Bangladesh’s Future IoT in Telecom — Bangladesh’s digital future. Introduction Internet of Things (IoT) is rapidly transforming Bangladesh’s telecom landscape. From smart meters and logistics tracking to agriculture and healthcare, telecom operators are becoming the platform that connects millions of sensors. With 4G/5G expansion and affordable modules, IoT is now within reach for startups, enterprises, and government services. What Is IoT in Telecom? IoT refers to physical devices embedded with sensors and connectivity that send/receive data. In telecom, IoT depends on reliable wireless access (NB-IoT, LTE-M, 4G/5G), cloud platforms, and automation to collect, process, and act on data securely. IoT devices connected to the telecom network. Key Use Cases in Bangladesh Smart Utilities: AMI smart meters for electricity, water, and gas billing. Fleet & Logistics: Real-time GPS tracking and cold-chain monito...

Cybersecurity in Bangladesh’s Telecom Networks: Challenges and Solutions Cybersecurity shield illustration representing telecom protection. Introduction With the rapid digital transformation of Bangladesh’s telecom industry, cybersecurity has become a critical concern. Telecom networks are the backbone of communication and financial transactions, making them a prime target for cybercriminals. Protecting these networks from attacks is essential for ensuring national security, consumer trust, and smooth business operations. Why Cybersecurity Matters in Telecom Critical Infrastructure: Telecom is the foundation for internet, mobile banking, and government services. High Data Volume: Millions of subscribers generate massive amounts of personal data daily. 5G & IoT Risks: As Bangladesh prepares for 5G and IoT, attack surfaces expand. Financial Fraud: SIM cloning, phishing, and mobile payment fraud are on the rise. Data protectio...

Artificial Intelligence (AI) in Telecom: Transforming Bangladesh’s Networks AI illustration symbolizing telecom network intelligence. Introduction Artificial Intelligence (AI) is no longer just a buzzword in global telecom—it is actively reshaping how operators manage networks, optimize performance, and deliver services. For Bangladesh’s telecom industry, AI adoption means faster rollouts, fewer outages, and smarter customer service. Operators like Grameenphone, Robi, Banglalink, and Teletalk are beginning to explore AI-driven solutions to stay competitive in a data-heavy, 5G-enabled world. What AI Brings to Telecom Predictive Maintenance: AI detects early signs of equipment failure and prevents downtime. Traffic Optimization: Algorithms balance bandwidth loads across busy networks. Fraud Detection: Machine learning identifies unusual call/data usage patterns. Smart Customer Service: AI chatbots resolve queries instantly in Bengali & Engli...

Cloud Computing and Its Impact on Bangladesh’s Telecom Industry Cloud computing concept illustration. Introduction Cloud computing has emerged as one of the most disruptive technologies of the decade. For Bangladesh’s telecom sector, cloud adoption is no longer optional—it is the backbone of scalability, cost efficiency, and innovation. Telecom operators like Grameenphone, Robi, Banglalink, and Teletalk are increasingly moving workloads to the cloud to streamline operations and deliver modern digital services. What Is Cloud Computing? Cloud computing allows businesses to store data, run applications, and manage resources through the internet instead of relying on on-premises hardware. This shift provides flexibility, reduced capital expenditure, and improved agility in launching services. Why Cloud Matters for Telecom in Bangladesh Scalability: Instantly scale resources up or down based on demand. Cost Savings: Reduce dependency on expensive data...

How APIs Are Revolutionizing Telecom Networks in Bangladesh API workflow illustration. Introduction Telecom networks in Bangladesh are evolving beyond traditional infrastructures. Operators like Grameenphone, Robi, Banglalink, and Teletalk are embracing Application Programming Interfaces (APIs) to automate operations, reduce downtime, and deliver new digital services faster. APIs enable seamless integration of billing, provisioning, and monitoring systems into a single, programmable framework. Why APIs Matter in Telecom Automation: Replace manual configuration with REST API or NETCONF calls. Service Agility: Roll out services like VPNs or bandwidth upgrades instantly. Integration: Connect OSS/BSS, CRM, and customer portals seamlessly. Data Access: Real-time performance data for analytics and AI tools. Web API integration concept. Examples of Telecom APIs in Action Provisioning APIs: Auto-assign IPs, VLANs, or bandwid...

Why Network Automation Skills Matter for Engineers in 2025 Introduction In 2025, companies expect network engineers to do more than configure devices by hand. They want professionals who can automate, validate, and observe networks using code and APIs. For engineers in Bangladesh—telecom, ISP, enterprise, and data center—automation skills mean higher productivity, fewer outages, and better career growth. The Demand Curve Telecom & ISP growth: More fiber, 5G, and enterprise circuits → more devices → automation required. Skill shortage: Engineers with Python, Ansible, and APIs are in short supply. Freelance work: Global projects increasingly require network scripting and tooling. Python for network automation. Core Skills to Learn Python: Netmiko/NAPALM for CLI/API tasks; Pandas for data; Jinja2 for templates. Ansible: Idempotent playbooks for mass configuration and compliance. Git & CI/CD: Version control, code reviews, and pi...

Beginner’s Guide to OSPF, IS-IS, and BGP for Bangladeshi Engineers Introduction Modern telecom networks rely on routing protocols to exchange information between routers, ensure resilience, and deliver fast connectivity. For engineers in Bangladesh, understanding the fundamentals of OSPF, IS-IS, and BGP is essential for careers in ISP, data centers, and enterprise networks. What Are Routing Protocols? Routing protocols are sets of rules that routers use to communicate network paths. They determine how traffic is forwarded efficiently and reliably across networks. The three most widely used protocols in carrier and ISP environments are OSPF, IS-IS, and BGP. OSPF (Open Shortest Path First) Type: Link-state protocol Use Case: Internal routing within an ISP or enterprise (IGP) Strength: Fast convergence, area-based hierarchy Limitation: Configuration can become complex in large topologies IS-IS (Intermediate System to Intermediate System) Type: Li...

Future of 5G in Bangladesh: Opportunities and Challenges Introduction Bangladesh’s telecom industry is preparing for the next big leap— 5G technology . While 4G is still expanding across rural areas, the government and operators like Grameenphone, Robi, and Teletalk have already started 5G trials. The adoption of 5G will bring transformative opportunities but also significant challenges for operators, regulators, and engineers. What Makes 5G Different? High Speed: 10x faster than 4G, enabling ultra-HD streaming and advanced applications. Low Latency: Response times as low as 1 ms—ideal for real-time services. Massive Device Support: IoT devices, smart meters, and industrial sensors can connect simultaneously. Opportunities of 5G in Bangladesh 5G has the potential to boost Bangladesh’s digital transformation: Smart Cities: Intelligent traffic systems, surveillance, and energy grids. Industry 4.0: Factories using IoT sensors for automation and monito...

Image: CDN diagram (CC BY-SA 4.0 via Wikimedia Commons) How Ansible Is Changing Telecom Networks in Bangladesh Introduction Bangladesh’s telecom sector—ISPs, mobile operators, and NTTN providers—continues to expand to meet surging demand. Manual configuration of routers and switches is slow, error-prone, and difficult to scale. Ansible , an open-source automation engine from Red Hat, is reshaping day-to-day network operations with repeatable playbooks and an agentless design. What Is Ansible? Ansible automates configuration, provisioning, and orchestration using simple YAML playbooks . It connects to network devices over SSH or vendor APIs (no agents), applies validated templates, and reports results consistently—ideal for large multi-vendor networks. Logo: Ansible (public domain text-logo via Wikimedia Commons) Why Ansible Matters for Bangladesh’s Telecom Faster rollouts: One playbook can configure VLANs, routing, QoS, and ACLs on 100+ ...

Introduction Bangladesh's telecom industry is growing at an unprecedented rate. Traditionally, engineers had to manually configure routers and switches—typing commands device by device. Not only is this approach slow and prone to error, but it’s also inefficient for large-scale networks. Network automation, powered by tools like Python scripts and Ansible, is now reshaping the telecom landscape by making operations faster, more reliable, and scalable. What Is Network Automation? Network automation involves using software—like scripts or configuration tools—to manage network devices programmatically. Instead of manually entering commands across multiple systems, engineers can execute a single script that applies configurations across the entire network, saving both time and effort. Why It Matters in Bangladesh Telecom Expansion – Companies like Summit Communications and Fiber@Home are rapidly deploying new infrastructure. Automation ensures faster rollouts and reduced dow...