[comp.dcom.lans] V3.2 vs V4 UDP and NFS

mjhammel@Kepler.dell.com (Michael J. Hammel) (03/12/91)

I seem to be having a problem with V4 systems and UDP.  It appears that
an NFS-based test between two V3.2 systems that I run shows up under
Netwatch as follows:

  	IP: src addr -> dest addr <value> UDP <value2> -> <value3> <value4>
where
	value: is some number apparently less than 1000 (but I can't prove that)
	value2: is either 2049, 1043, or 1045 (there may be others, Netwatched
		was stopped for some reason when I wrote this up)
	value3: appears to be of the same group of numbers as value2 but never

	value4: was either 104, 1152, or 124.  Those were the only values I saw.

With V4 to V4 systems its more like:
	IP: src addr -> dest addr 1500 UDP Fragment
And its *always like that.

I don't have data on what happens between V4 and V3.2 systems. 

Question:  what do these numbers mean, what does Netwatch mean by
Fragment (and how does he know its a fragment?), and why does either
Netwatch see things differently between the two scenarios or why is
there a difference?  Can it be related to the rsize/wsize default
values?  Where are these values specified?  I'm not specifying these
values in the mount command.

Comments?  Suggestions?

Michael J. Hammel        | mjhammel@{Kepler|socrates}.dell.com
Dell Computer Corp.      | {73377.3467|76424.3024}@compuserve.com
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