[Beowulf] Performance tuning for Jumbo Frames
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Greg Lindahl lindahl at pbm.comTue Dec 15 13:22:56 PST 2009
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On Tue, Dec 15, 2009 at 12:49:23PM -0500, Scott Atchley wrote: > You can test it by using the size parameter with ping: > > $ ping -s <size_in_bytes> <host> > > If they all drop, then you have exceeded the MTU of some device. [lindahl at greg-desk b]$ ping -s 60000 rich-desk PING rich-desk (64.13.159.69) 60000(60028) bytes of data. 60008 bytes from rich-desk (64.13.159.69): icmp_seq=1 ttl=64 time=1.36 ms 60008 bytes from rich-desk (64.13.159.69): icmp_seq=2 ttl=64 time=1.32 ms I never knew I bought such advanced network gear! -- greg
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