[e2e] Protocols breaking the end-to-end argument

[Noel Chiappa]

    > From: Dave CROCKER <dhc2 at dcrocker.net>

    > The quotations are because the former presents an Ethernet interface
    > but not Ethernet over the wire.

Thereby becoming a perfect illustration of the systems architecture truism
that _interfaces_ between subsystems are far more persistent (lifetime-wise)
than the internals of the subsystem.

Other examples of this phenomenon include the RJ-11 phone jack (both
physically and electrically), the standard screw-in light bulb socket (now
hosting those fluorescent spiral tube bulbs), etc, etc.

	Noel