classful routes redux

Thu Nov 3 00:26:19 UTC 2005

* fred at cisco.com (Fred Baker) [Thu 03 Nov 2005, 01:17 CET]:
>A class A gives you 16 bits to enumerate 8 bit subnets. If you start

You've been reading too much Cisco Press material.

All a "Class A" gives you today is filthy looks, and people who know 
better shake their heads, feeling sorry for you.

The operational world left classful IPv4 addressing behind us, over 
a decade ago.

Perhaps it's time that certain vendors did the same, in their literature 
and certification programmes.

Recycling outdated terms to apply to new concepts ("Class C" to represent 
a /24 in the CIDR IPv4 world, or a /48 or whatever in IPv6) is a folly 
that can only lead to suffering.

	-- Niels.