We have port-security enabled on the access switches across our enterprise. Until last month, we had aging timers also set, for 2 minutes, and all was well in the world. Last month those timers were ...

Port Security – This is one of the most commonly used switch security feature of all. It is vital for protection against MAC spoofing and CAM table overflow attacks. This feature works by limiting an ...

I was reading about the Cisco EEM and came across an interesting script that can monitor the interface state through the syslog messages. You can set it up to administratively shutdown an interface if ...

Cisco has patched today three dangerous bugs in one of its most popular products, the Cisco Small Business 220 Series of smart switches. Of the three, the first two are the most dangerous because they ...

Excerpt from CCNA Practice Questions (Exam 640-802), 3rd Edition. Select the appropriate media, cables, ports, and connectors to connect switches to other network devices and hosts. Explain the ...