[Beowulf] Performance tuning for Jumbo Frames
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Patrick Geoffray patrick at myri.comTue Dec 15 20:05:26 PST 2009
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Rahul Nabar wrote: > Thanks! So I could push it beyond 9000 as well? 1500 Bytes is the standard MTU for Ethernet, anything larger is out of spec. The convention for a larger MTU is Jumbo Frames at 9000 Bytes, and most switches support it these days. Some hardware even support Super Jumbo Frames at 64K but it's rare (and useless IMHO). Since Jumbo Frames are out of spec, they are typically not enabled by default in switches. Patrick
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