Edge Study
This is an engineering archive that systematically organizes everything from the basics of campus wired and wireless networks to modern data center fabrics (EVPN-VXLAN), cloud-native architecture, and practical troubleshooting know-how.
Official Certification Tracks
Step-by-step Regular Network Academy SeriesAOS-CX Wired Network Master (ACSA)
It covers the core of campus wired infrastructure, from the next-generation AOS-CX switch architecture to VLANs, Spanning Trees, Link Aggregation, and OSPF routing.
Enterprise Wireless Network Design (ACMA)
This course organizes the material with a practical focus, ranging from basic RF theory to enterprise Wi-Fi architecture, AP and gateway operating principles, and secure wireless LAN security design.
Aruba Data Center Networking (ACP-DC)
This is an advanced course for DCN engineers covering Spine-Leaf architecture, VSX redundancy, VRF, and EVPN-VXLAN fabric deployment for modern data centers.
Aruba Central Cloud Networking (APSC)
We cover practical applications of wired and wireless integrated provisioning, monitoring, and AIOps operations using HPE Aruba Central, a cloud-native single platform.
Tech Tips & Deep Dive
In-depth Analysis and Engineering Guide to Practical Architecture-
![[MCP 실전] 크로스 도메인 네트워크 인프라를 하나로 묶다](https://egstory.net/wp-content/uploads/2026/10/gemini-svg-850x550.png)
[MCP Practice] Unifying Cross-Domain Network Infrastructure
Previous Post: How to Use AI Smarter: In MCP (Model Context Protocol), for LLM to go beyond simple chatbots and exchange data with external systems in real time…
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No interruptions in traffic even during firmware updates? The ISSU Complete Guide
One of the first awkward moments you experience after joining as a network engineer is when a senior colleague says something like this: “I’m going to update the switch firmware at 2 AM tonight, so…”
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![[Icinga로 모니터링 1편] Icinga 2와 기본 연동 – SNMP & REST API](https://egstory.net/wp-content/uploads/2026/09/dashing_icinga2_overview-850x550.png)
[Monitoring with Icinga Part 1] Basic Integration with Icinga 2 – SNMP & REST API
1. Introduction: Infrastructure Monitoring, Why Icinga 2? When operating enterprise networks and infrastructure, the open-source monitoring tool most familiar to domestic engineers is…
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![[심화 가이드] AI 데이터센터(AIDC)를 지탱하는 광트랜시버 기술 혁신](https://egstory.net/wp-content/uploads/2026/08/Thumbnails-for-AIDC-optics--850x550.jpg)
[Advanced Guide] Optical Transceiver Technology Innovations Supporting AI Data Centers (AIDC)
As large-scale AI clusters and AIDC (AI Data Center) environments become commonplace, key bottlenecks in network engineering are extending beyond the 'software stack' to 'Physical Signal Integrity' and 'thermal…
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![[완전 기초 가이드] 광케이블 꽂으려면 지빅 필요한 거 아니에요?](https://egstory.net/wp-content/uploads/2026/08/2025-08-29-00.01.24-1-850x550.jpg)
[Absolute Basic Guide] Don't I need a GBIC to plug in an optical cable?
When working in network engineering or in the field at data centers, there is a question and request that is most commonly heard: “I need to connect fiber optic cables to that switch, so just a few GBICs…‘
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How to Use AI Smarter, MCP
Recently, you have likely encountered many powerful built-in AI features, such as 'Agentic AI' or 'Marvis,' on platforms like HPE Aruba Central or Juniper Mist.