🚀 go-pugleaf

djc@scimitar.unx.sas.com (David J. Cherveny) writes:


>So, how did you get around the 2k limit?  Tweek some VTAM parameters?


Sorry to say, but we couldn't get around the 2K limit :-(

We didn't tweak VTAM. In fact in our case it's a CICS application that
wants to send blocks as large as 5000 bytes with the 'dont fragment'
bit set.  (Sorry if that isn't the exact term in SNA-lingo, but I'm
not a SNA-guru anyway)

In fact we finally stopped our tests, thinking of multiplexing the
line or even use a separate line for connecting FEPs that transfer
frames that large. (Bye, bye multiprotocol WAN for now; at least for
'large-frame-SNA' :-( )


What would be very interesting: Does anybody out there know, whether
some cisco-box (IGS?) CAN correctly handle frames that large? We've
done our tests on a CGS, AGS and AGS+ -- these boxes can't do the
trick due to the hardware limitation I mentioned in my previous
posting.

-ewald


--
Ewald Jenisch                      |  E-mail: ewald.jenisch@cc.univie.ac.at 
Vienna University Computer Center  |          z00ejr01@awiuni11.bitnet
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