Technical Networking Army

  Essence: When traffic is above 70% it’s congestion and performance degradation, need to increase capacity. To achieve this adding more links to the existing Link Aggregation Group (LAG) increases bandwidth, distributes traffic better and ensures network stability. This prevents bottlenecks, optimize resource utilization and redundancy, reduces the risk of service disruptions. Expanding LAG allows scaling without downtime, so it’s a must have for handling growing network demands and high traffic environments. Link Aggregation in Capacity Planning  Link Aggregation (LAG) is part of capacity planning by combining multiple physical links into one logical link to increase bandwidth, redundancy and overall network performance. This prevents congestion by distributing traffic across multiple links, ensures optimal resource utilization. In capacity planning LAG allows network engineers to scale bandwidth without additional infrastructure changes, so it’s cost effective. Also, it p...

 Preface In an AWS cloud Proof of Concept (PoC), Transit Gateway (TGW) and Internet Gateway (IGW) are key to secure, scalable and efficient communication between different VPCs and external networks. Transit Gateway (TGW) is a central routing hub where multiple VPCs can communicate without the complexity of multiple VPC peering connections. It simplifies network management, scales and enforces security policies through route tables to control traffic between connected VPCs. Internet Gateway (IGW) is required for outbound and inbound internet access for resources in public subnets. It allows public facing workloads like web servers and APIs to talk to external services while keeping private subnets secure through NAT Gateways . Together TGW and IGW provide a structured and controlled networking environment, so critical workloads are secure, isolated when needed and connected efficiently in a multi-VPC architecture. POC  The proposed Proof of Concept (PoC) focuses on estab...

Glance Link validation is an important process in network operations to ensure physical and logical connections are configured and operational. Protocols like LLDP (Link Layer Discovery Protocol) and CDP (Cisco Discovery Protocol) help with device discovery and link verification. LLDP is an open standard protocol and CDP is a Cisco proprietary protocol that allows devices to advertise their identity, capabilities and interconnects to adjacent devices. These protocols allow network admins to verify neighbor relationships, detect misconfigurations and confirm link attributes like VLAN assignments and port details. Including LLDP and CDP in link validation workflows helps identify discrepancies like ghost ports or mismatched configurations so you can get accurate topology mapping and better network performance. It’s a critical process to ensure network integrity and reliability as it verifies the operational state and configuration of network links. But ghost ports – non-existent or mis...

Foundation:- ChatGPT is an AI powered conversational platform running on Microsoft’s cloud infrastructure which is available globally. Its seamless functionality relies on uninterrupted power and robust server networks to handle millions of requests at the same time. But a power outage at Microsoft’s South Central US data center on December 26th 2024 showed how critical infrastructure failures can impact these kinds of services. The outage affected ChatGPT globally and users saw high error rates and service unavailability. It wasn’t just casual users who were affected but also businesses and developers who rely on its API for mission critical tasks, highlighting how global AI platforms depend on robust power and server infrastructure. These failures remind us we need stronger backup systems and contingency plans to keep the service up and running and avoid widespread disruptions in the future.        How ChatGPT works ?  Here is the diagram showing how a ChatGP...