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Re:Why couldn't MAC addresses be used instead of IPv4|6 for ... by cllunsford on Wednesday July 25, 2012 @08:23PM (#4293743)
Routing at layer 2 (via MAC) is already implemented in the data center. See TRILL or Cisco's FabricPath.

At Internet scale, LISP (http://www.lisp4.net/) takes on the problem of a 'static' host address being reachable at any location.

Both of these rely upon the idea of encapsulation (mac-in-mac or ip-in-ip) to separate the location and host identity.

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