> From: "Hallam-Baker, Phillip" <pbaker(_at_)verisign(_dot_)com>
> Perhaps you could define the term subnet?
"IP subnet", or "subnet" in the more general networking
(outside-the-IP-community - the null set these days, I know) sense?
For the first, originally, back in the days of class A/B/C "network numbers",
it was a chunk of address space smaller than the "network" it was assigned
from; it was used to provide addresses for a particular physical network. Now
that we have CIDR, it seems to basically just means a chunk of address space
assigned to a particular hardware network (the second meaning of "subnet").
For the second, it meant a particular physical network, i.e. the collection
of end-stations which could send packets directly to each other without going
through a router. This was before bridges, hubs, etc. Goodness knows what it
means now! I'd suggest "multicast broadcast domain" as a good modern
functional definition.
Noel
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