Richard A Steenbergen wrote:
On Sun, Apr 04, 2010 at 11:53:54AM -0300, A.B. Jr. wrote:
Hi,
Lots of traffic recently about 64 bits being too short or too long.
What about mac addresses? Aren't they close to exhaustion? Should be. Or it is assumed that mac addresses are being widely reused throughout the world? All those low cost switches and wifi adapters DO use unique mac addresses?
http://en.wikipedia.org/wiki/MAC_address
The IEEE expects the MAC-48 space to be exhausted no sooner than the year 2100[3]; EUI-64s are not expected to run out in the foreseeable future.
And this is what happens when you can use 100% of the bits on "endpoint identity" and not waste huge sections of them on the decision bits for "routing topology". Of course it comes with a privacy problem if you want to use that endpoint identifier globally and not change it for every session (as some protocols that separate routable-address from endpoint-identity do) Matthew Kaufman