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Article #41752

Re: NetBios problems with a token ring

#41752
From: meyer
Date: Tue, 06 Feb 1990 17:40
23 lines
1701 bytes
NETbios on a token-ring system is very flaky to program for, I agree.  I had a
similar 'mysterious' problem where a host program sent/received various types &
sizes of messages to a number of client programs via sessions, with timer 
messages sent via datagram.  The host program would randomly hang upon receipt
of one type of message, often working perfectly for 5-10 minutes before hanging.ng.
This message is neither the smallest nor largest message, so no buffer overflow
problems.  The solution - I implemented this specific message in datagram, an
now it works perfectly.  

I'm not sure if you're doing this already, or not - but you may want to try
posting one or more receives ahead of time.  I generally do this as a rule - 
it tends to avoid blocking and improve throughput.  (It doesn't work well under 
Windows/386 - any program using posted netbios commands will receive a "Not
enough NCBs" error returned from the post command.)  I have generally excellent
success otherwise.


_____
	Don Meyer
	internet:  dlmeyer@uiuc.edu  (sunb8.cs.uiuc.edu)
	quote du jour:	"If, indeed, there exists Artificial Intelligence,
			  then there must also exist Artificial Stupidity" - ???
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References: <36200003@suna8>

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From: meyer@sunb8.cs.uiuc.edu
Newsgroups: comp.sys.ibm.pc
Subject: Re: NetBios problems with a token ring
Message-ID: <36200004@sunb8>
Date: 6 Feb 90 17:40:25 GMT
References: <36200003@suna8>
Lines: 23
Nf-ID: #R:suna8:36200003:sunb8:36200004:000:1189
Nf-From: sunb8.cs.uiuc.edu!meyer    Feb  5 10:02:00 1990