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Re: MVS TCP/IP failures - possible resolution
1998-02-26 21:49:36
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Subject: |
Re: MVS TCP/IP failures - possible resolution |
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From: |
"Nicholas, Murray, Haltek/AU" <MurrayNi AT HALTEK.COM DOT AU> |
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Date: |
Fri, 27 Feb 1998 13:49:36 +1100 |
65535+1=65536=2^16. I suspect your sliding window of 0 is being
received by MVS and then it decides it still needs to decrement by 1
and rolls the halfword value from binary '0000000000000000' to
b'1111111111111111' to represent -1. When this is returned to TCP/IP
it knows that negative window sizes are meaningless and ignores the
left most bit (the sign bit) leaving you with
b'0111111111111111'=65535. If your PTF addresses the arithmetic
problem, it probably addresses the underlying cause.
Murray Nicholas
IT Systems Consultant
Galeforce Information Services Pty Ltd
email: murray AT galeforce.bu.aust DOT com
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