Path: utzoo!attcan!uunet!wuarchive!cs.utexas.edu!asuvax!ncar!ames!pasteur!ucbvax!laotse.cam.nist.gov!sting
From: sting@laotse.cam.nist.gov (s. ting)
Newsgroups: comp.sys.proteon
Subject: ftp rgb files over Pronet-80
Message-ID: <9002271753.AA05266@laotse.cam.nist.gov>
Date: 27 Feb 90 17:53:19 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 28


   We have a ProNET-80 fiber ring on campus. Many P4200s are attached to
 the ring through p3280s. Ethernets are connected to those P4200s.  One 
 scientist here tried to ftp his three image files (3-dimensional) from his HP
 running unix on one Ethernet to another host on a different Ethernet through the 
 ring.  The ftp always stuck.  But, with same hosts involved, no problems with
 ftping at all for other files no matter the file sizes and binary or ascii.
 
   I observed on p4200 many "Op err 8704 hst xxx" messages like below being pumped out
 as soon as the ftping of any one rgb file began. Those messages did not appear while
 we tried other different files. 
   
   Op err 8704 hst 376 nt 0 int Pro/0
   Op err 8704 hst 376 nt 0 int Pro/0
   Op err 8704 hst 376 nt 0 int Pro/0
   Op err 8704 hst 376 nt 0 int Pro/0
   Op err 8704 hst 376 nt 0 int Pro/0
   Op err 8704 hst 376 nt 0 int Pro/0
   Op err 8704 hst 376 nt 0 int Pro/0


  So, it appears that ProNET-80 has something to do with it.  Does anyone have similar
experience or know what is going on?



  Michael Ting, 
  NIST, (301) 975-3802