Today I’m breaking down a simple yet powerful security mechanism every network admin should understand — Port Security on Cisco switches. Whether you’re working on a small LAN setup or enterprise-grade infrastructure, enforcing MAC address-level access at the port can go a long way in […]
![How to Lock Down Cisco Switch Ports with Port Security (2025 Guide)[CCNP ENTERPRISE]](https://networkjourney.com/wp-content/uploads/2025/06/nj-blog-post-portsec-switchport.jpg)