On Wed, Feb 17, 2010 at 1:03 AM, Joe Abley <[email protected]> wrote: > > On 2010-02-16, at 22:00, Christopher Morrow wrote: > >> On Wed, Feb 17, 2010 at 12:50 AM, Joe Abley <[email protected]> wrote: >>> >> >>> I am somewhat intrigued at this network you mention with which people have >>> practical experience that has more nodes than the Internet does, though. >>> That'd be quite a network. >> >> what's the current estimate on PSTN endpoints? 2-3B globally? > > True, I was thinking about packet-switched networks, since it always seems to > me that > a circuit-switched network is only as big at any time as the number > of circuits that exist,
I almost made a comment that the PSTN is really (as far as routing is concerned) lots of disparate networks with no 'global view' of the problem. It can be argued (and randy likely will, or bmanning even) that the Internet doesn't have a single view either... There's loop protection in the routing data, which the PSTN doesn't really have. (which is a side problem) > not the number of possible termination points for circuits. Quite possibly > I'm just > smoking crack, however. doubtful... probably me missing a terminology collision :( It also depends on how Tomas was defining his problem. I still say the PSTN and Internet are apples/oranges in so many ways you can't use them in an comparision. -chris
