[ppml] 240/4

Tony Hain alh-ietf at tndh.net
Tue Apr 24 15:03:04 EDT 2007

I just heard a part of Paul's comment about 240/4, and it sounded like Scott
commented about implementations being difficult to fix.

Even if the vendors implemented a change and shipped it within 18 months (an
aggressive window), there is a very, very, very large installed base of
systems that can't/won't be upgraded to allow use of a block that was
'undefined' at the time they were tested & shipped. By the time those work
their way out of the network, we will be long past the point where the 240/4
block might have been useful.


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