Ok, its 1:29AM CST - and I am setting here chewing on this switching study guide information about VLANs. I think I see where my confusion has come from and what the answer is now.
Layer 3 switching does not require VLANs, but what is DOES require is a physical port connection on the common L3 switch for every IP network that is connected to the L2 switches. (Hosts on the same L2 switch that are configured to be in 2 different IP networks.) This is not always possible nor administratively friendly. With VLANs, you can create the equivalent of sub interfaces on a single port on the L3 switch - hence trunking. You cannot trunk multiple IP networks (without VLANs) on a single port connection the L3 switch, because you cannot create Ethernet sub-interfaces... That's where I was missing it. I think it both Vicki and Jens mentioned something about this. Of course if I am off-kilter here, someone please slap me about :) Otherwise I am confident this is where my misunderstanding really occurred. Thanks to EVERYONE who responded - you are all a great group of people to stick it out until this was beat into my thick skull!!! Stephen Hoover Dallas, Texas Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=63240&t=63240 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
