Networklearner

I am a network professional with over 18 years of experience in enterprise and data‑center networking. I am a CCIE Data Center certified engineer with strong hands‑on expertise in Cisco Nexus and Cisco ACI design, deployment, troubleshooting, and operations. I work on production ACI fabrics and am available for Cisco ACI and Nexus freelancing or consulting work. Contact: rockingoa@gmail.com

Friday, 31 October 2025

CESA, NVM Questions

Question 1 - As your company's employees work both on and off-premises, you plan to collect flow context from the endpoints to gain ...

Tuesday, 23 September 2025

MD5 to SHA/AES Migration

1. Why Replace MD5? - MD5 is vulnerable to collision attacks, allowing attackers to generate the same hash with different inputs. - It i...

Sunday, 7 September 2025

Rogue Endpoint Detection in Cisco ACI

🔐 Rogue Endpoint Detection in Cisco ACI ⚠️ Problem Addressed Rogue endpoints or misconfigured devices can cause frequent MAC/IP mo...

Cisco ACI Mis-Cabling Protocol (MCP) – Loop Detection Simplified

Cisco ACI uses Mis-Cabling Protocol (MCP) to detect and mitigate Layer 2 loops , replacing traditional STP participation. MCP sends speci...

Saturday, 6 September 2025

Cisco ACI, Storm Control : Drop and Shutdown

In Cisco ACI , Storm Control is a feature used to mitigate traffic storms caused by excessive broadcast, multicast, or unknown unicast t...

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