[AG-TECH] AG & MTU Size

Bill Nickless nickless at mcs.anl.gov
Wed May 14 15:24:58 CDT 2003


Actually, 9000.  9K is ambiguous.  :-)

At 03:24 PM 5/14/2003 -0500, Barbara A. Kucera wrote:
>Let me see if I understand, Mike . . .
>
>The JET of LSN on IWF/ITRD of NCOITRD reporting to the White House OSTP 
>and the NSF and TC suggest an MTU size of 9K+?
>
>Yeah, okay.
>
>Barbara
>------------
>
>At 11:58 AM 5/14/2003 -0400, Mike Weaver - MICS/USDOE wrote:
>>Does anyone have any information or has anyone done any research on the
>>effect of MTU size on the AG?  The Joint Engineering Team (JET) of the Large
>>Scale Networking (LSN) group of the Interagency Working Group on IT R&D
>>(IWG/ITRD) out of the National Coordination Office for Information
>>Technology Research and Development (NITRD) reporting to the Whitehouse
>>Office of Science and Technology Policy and the National Science and
>>Technology Council - whew...that's a mouthful! - is suggesting an MTU size
>>of 9K+.
>>
>>Does anyone know the effects of trying to tune Windows/Linux's TCP/IP stacks
>>to work with 9000-byte MTUs?  How about the video and audio tools
>>(vic/rat) - any issues that anyone might know about?
>>
>>Thanks,
>>
>>Mike
>>
>>--
>>Mike Weaver
>>Sr. Network Administrator
>>SC-31/Germantown Building
>>US Department of Energy
>>1000 Independence Avenue, SW
>>Washington, D.C. 20585-1290
>>Voice: 301-903-0072
>>Fax: 301-528-2701
>>Email: weaver at er.doe.gov
>
>________________
>Barbara A. Kucera
>Alliance/NSF EPSCoR Liaison
>National Center for Supercomputing Applications (NCSA)
>University of Illinois at Urbana-Champaign
>(217) 244-0131 * Fax (217) 244-2909
>
>Computer Science is no more about computers than astronomy is about
>telescopes. - Edsger W. Dijkstra, computer science professor

===
Bill Nickless    http://www.mcs.anl.gov/people/nickless      +1 630 252 7390
PGP:0E 0F 16 80 C5 B1 69 52 E1 44 1A A5 0E 1B 74 F7     nickless at mcs.anl.gov




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