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Celia, #1 ofour.rap.ucar.edu and #2 iita.rap.ucar.edu. Both are requesting the same data; topo: ofour.rap.ucar.edu NNEXRAD|CONDUIT|UNIDATA topo: iita.rap.ucar.edu NNEXRAD|DIFAX|CONDUIT|FSL2|UNIDATA and they both have small TCP receive window sizes (ofour is very small). I'd recommend at least 64k, maybe even 128k. thelma.ldm ofour.rap.ucar.edu.36202 2920 1851 64240 0 EST thelma.ldm iita.rap.ucar.edu.2851 28960 2363 131768 0 EST ^^^^^ Please have iita feed from ofour (and not thelma), and if you could contact your sysadmin re the TCP receive window sizes, it would be helpful for both parties. Also, please upgrade to LDM 6.0.10 asap, it will improve your performance greatly.. http://my.unidata.ucar.edu/content/software/ldm/ldm-6.0.10/index.html Please keep me posted as to the progress of these requests. Thank you, -Jeff ____________________________ _____________________ Jeff Weber address@hidden Unidata Support PH:303-497-8676 University Corp for Atmospheric Research 3300 Mitchell Ln http://www.unidata.ucar.edu/staff/jweber Boulder,Co 80307-3000 ________________________________________ ______________________