It looks like everyone has better things to do after the summer holidays than providing free content to the blogosphere. The only really interesting post I found was Colin McNamara's response to my DMZ VLAN post, in which he looks at the much bigger picture: it's not only the switching infrastructure we're sharing; in the virtualization rush, we're sharing memory, disks, interfaces and even firewalls.
Ivan Pepelnjak, CCIE#1354, is the chief technology advisor for NIL Data Communications. He has been designing and implementing large-scale data communications networks as well as teaching and writing books about advanced technologies since 1990. See his full profile, contact him or follow @ioshints on Twitter.