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I know I left that IP packet somewhere?

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The Question is:

A customer of us has run into problems when using tcp/ip on following
OpenVMS V7.1
Digital TCP/IP Services for OpenVMS Alpha Version V4.2 - ECO 2
on a AlphaServer 4100 5/400 4MB running OpenVMS V7.1
Operating system: OpenVMS Alpha AXP
The problem is that some tcp/ip packages are lost and the process hangs waiting
 for the lost packages to arrive.
The process is reading data from a sequential file and wrting it into a
 database. At somepoint, tcp/ip looses data and the process hangs.
UCX device_socket shows:
Writing process	  receive          send
I/O completed 		     4070          4070
Bytes transfered             2436179  13325950
Receiving process
I/O completed 		    4069          4069
Bytes transfered          13325683    2436179
As it shows, there is one i/o less completed in the receiving end than in the
 sending end.
The process works well on single-CPU machine with the same data.
Also, there is no problems on dual-cpu machine if DECNET is used.
My question is: Is there known TCP/IP problems on multi-processor OpenVMS Alpha
Thanks for your time

The Answer is :

  Please first upgrade to V5.0A, then please contact the Compaq
  Customer Support Center for assistance.
  This could potentially be a result of an application programming bug
  (please see topic 1661 as a start), or it could be from a network or
  IP routing problem, or it could be a problem within the TCP/IP Services
  package or within the OpenVMS network device drivers.

answer written or last revised on ( 14-JUN-2000 )

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