The IP over ATM Mailing List Archive by date

[Craig Partridge <craig@aland.bbn.com>]

Uh, folks, I think this discussion is getting a bit arcane.

For instance, the notion of classifying a TCP connection with traffic
parameters like PCR, SCR and MBS.  In general, TCP will adapt to whatever
parameters you give it -- so the problem isn't mapping TCP requirements
(except for the general notion that interactive stuff like FTP and TELNET
and MOSAIC want more bandwidth than background stuff like SMTP), it is
figuring out what your local allocation policy is.  [And note that ATM's
allocation policy is cumbersome in a LAN context -- in a LAN the desired
rule you want is -- if no one else is using the link, you get all of it,
otherwise you get an equal share -- once ABR service is available, that's
clearly what TCP should use].

I think the real problem is mapping a UDP/IP multicast session carrying
video into appropriate ATM parameters.

Craig