This is a review of Implementing Cisco Switched Networks (SWITCH) Foundation Learning Guide. Written by CCIE's Richard Froom CCIE# 5102 and Erum Frahim CCIE# 7549 and Balaji Sivasubramanian. This is an excellent book on switching fundamentals. It clearly explains VLAN's, how and where to use them. How the old 80/20 rule is now 20/80. Security topics ...

You can learn all you want about ACL's until you're blue in the face, but what if the traffic never traverses an interface? How do you control traffic within a VLAN? That's where VACL's come in. VLAN access-lists can handle packets within a VLAN since there are no actual IN/OUT direction to be applied as you ...

Here's another lab from Dave Hucaby. As always, please try to do them yourself before looking at the possible answers below: http://dhucaby.wordpress.com/2010/06/15/scenario-2-securing-a-trunk/ Dave's original question: Today’s scenario involves securing a trunk between two switches… A user PC A is located on Switch A with the interface configuration shown in the diagram below. A different user PC X is located ...

In another lab created by Dave Hucaby, we look at playing with VLAN trunking and mixing and matching native vlan's and what the effects of doing so are. As always, you can view his original lab here: http://dhucaby.wordpress.com/2010/06/11/new-scenario-vlan-trunking-1/ Here is his original question: Here’s a new scenario to think about. I haven’t built it in a lab yet, ...