Cloud computing is the driving force behind these technologies. You will see plenty DC environments changing the way they do business within the DC environment. Active/Backup DCs will be a thing of the past and you will see Cloud along with Active/Active DCs not only on the 'service' industry but also within the 'enterprise'.
I agree, Edison. In my present position, we have these discussions every day. Cloud computing, FCoE, DCB, TRILL, VCS, Q-Fabric, Open Flow SDN, VxLAN, server-storage-network virtualization, VN-LINK, VEPA, etc.
I don't have all the answers or a full understanding of VxLAN right now - I'm not sure anyone does, but it sounds very promising. It may have some advantages over TRILL in terms of deployment and management. I did a deep-dive white board session on TRILL a few months back, and I have to say that it is one of the most complex and seemingly-arbitrary protocols I have ever seen.
The future should be interesting
Well lisp allows you to separate location and address in routing not really relevant for the current discussion I would think
There has been some argument about using it within the dc but none very series afaik
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