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Hi kashani, |
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on Monday, 2007-04-23 at 11:11:40, you wrote: |
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> >It sounds like Gigabit Ethernet to me. |
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|
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Yes, that's it. |
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|
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> Keep in mind that not all fastE or gigE switches support jumbo frames. |
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> Additionally not all cards support jumbo frames either though you can |
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> certainly set them to an MTU of 9000 and watch things break. |
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|
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I had that problem before with the Server's onboard Broadcom chip; |
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fortunately it just breaks completely when you up the MTU :) Now I |
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installed an Intel 82545GM card that officially supports jumbo frames |
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and that I haven't heard anyone complain about. The clients all have the |
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same 82547EI onboard chip. |
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|
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> To the original poster, I'd do some googling and verify that all the |
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> network cards and switches involved can do jumbo frames and that it is |
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> enabled on each device as needed. |
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|
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Check. The switches are HP ProCurve 2824 supporting up to 9216 bytes per |
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frame, and I checked the config several times. Jumbo frames are enabled |
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on all ports, and it's a rather basic config anyway, no VLANs 'n stuff, |
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no voice LAN features, just switching. And for everything else but NFS |
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locking it does work fine. A plain netcat from /dev/zero to /dev/null |
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goes from some 35 MB/s at an MTU of 1500 to over 80, ssh does very well, |
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and even NFS file operations other than locking work. |
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I have googled for quite a while but can't find a thing. |
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Anyone here using NFS and GigE+jumbo frames with Gentoo? |
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|
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cheers! |
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Matthias |
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-- |
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I prefer encrypted and signed messages. KeyID: FAC37665 |
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Fingerprint: 8C16 3F0A A6FC DF0D 19B0 8DEF 48D9 1700 FAC3 7665 |
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