A TechRepublic reader recently e-mailed me to ask about limiting the bandwidth on a Cisco Catalyst switch port. In fact, there are a number of uses for this configuration. Let's take a closer look. A ...

Cisco Systems is forging ahead with LAN switches designed to support faster Wi-Fi access points even while an ethernet standard for the technology they use is still taking shape. The switches have ...

One way to boost network security is to use Cisco's Port Security feature to lock down switch ports. Learn the basics of port security, and find out how to configure this feature. A growing challenge ...

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 ...

A Cisco switch configured as an access layer port with a voice vlan is actually an 802.1Q trunk that will only allow traffic tagged on the voice vlan. The last exception is very seldom used, but does ...

Blueprint topics covered in this chapter: This chapter covers the following subtopics from the Cisco CCIE Routing and Switching written exam blueprint. Refer to the full blueprint in Table I-1 in the ...