[c-nsp] VLSM

[Stephen J. Wilcox]

On Tue, 11 Jan 2005, Pete Templin wrote:

> Stephen J. Wilcox wrote:
> 
> > you are correct tho, the semantics is perhaps unimportant, but generally use of 
> > incorrect terminology also means their understanding of the actual networking is 
> > incorrect too.
> 
> Bingo!
> 
> When people assume they can have a /24 (formerly known as class C)  
> automatically with a T1 because that's how the Internet worked years (decade?)
> ago, it becomes a problem.  (Or when they think that address assignments are
> linear with bandwidth, etc.)

its worse than that, its apparent that the reason some deaggreate clumps of /24s 
exist in the global routing table is because they eg got a /20 but interpreted 
it as 16 x Class C so they announce 16x Class C and configure 16 secondary 
addresses on their routers!

Steve