Ars Technica

Gah. STP and VLANs with Cisco and Dell switches...

I've got a customer with a Dell switch (power connect 6248 I think) with 3 uplinks to my network. The uplinks are separate layer 3 links, each one being a separate IP block in a separate VLAN on my ...
Linux Journal

VLANs on Linux

To begin, we must have a more formal definition of what a LAN is. LAN stands for local area network. Hubs and switches usually are thought of as participating in a single LAN. Normally, if you connect ...
Network World

QoS in Switches: CoS Trust Boundaries

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 ...
Network World

The eight most important commands on a Cisco ASA security appliance

Here’s a guest post sent to me by Don Crawley, author of The Accidental Administrator book series. It is an excerpt from his latest:The Accidental Administrator: Cisco ASA Security Appliance: A ...
Ars Technica

Is there such a thing as a "beginner" level managed switch?

I'm looking into getting a managed switch to learn how to setup VLANs. Ultimately I want to setup separate VLANs to segregate devices in the future home. Right now I only have a handful of unmanaged ...