port numbers?

[Jitendra Padhye]

Hi,

What is the limit on number of simulatenous sending/receiving agents that can be
attached to a node?

e.g. consider the following simple configuration:

	s1 <-----> r1

How many TCP sessions can co-exist between s1 and r1? 128? 256? 64000?

Am I correct in assuming that this number the same as the maximum "fan-in" or "fan-out" 
allowed at a node? (i.e. how many nodes can I attach to s1 without running into trouble?)

Thanks, 

- Jitendra