[ale] Higher MTU for 40 GB NICs?

[dev null zero two]

10 Gb*

On Tue, Jun 7, 2016 at 3:29 PM, dev null zero two <dev.null.02 at gmail.com>
wrote:

> absolutely increase it, it lowers the overhead of TCP. 9000 should be the
> default MTU for 10 GB links at a minimum. be wary of packet fragmentation
> if they end up somewhere that isn't configured to use that MTU though.
>
> On Tue, Jun 7, 2016 at 3:22 PM, Lightner, Jeffrey <
> JLightner at dsservices.com> wrote:
>
>> Is there any intrinsic benefit to using a higher MTU for 40 GB NICs?
>>
>>
>>
>> That is, with all other things being equal is there any benefit to
>> setting it higher on a 40 GB than on a 10 GB or 1 GB?
>>
>>
>>
>> I notice 40 GB defaulted to 1500 just like the 1 GB and 10 GB.
>>
>>
>>
>> The only time I’ve mucked with MTU in recent memory was because a vendor
>> insisted it would solve a problem.   (It didn’t because the issue wasn’t
>> networking in the first place but that is another story.)
>>
>>
>>
>>
>>
>>
>>
>> CONFIDENTIALITY NOTICE: This e-mail may contain privileged or
>> confidential information and is for the sole use of the intended
>> recipient(s). If you are not the intended recipient, any disclosure,
>> copying, distribution, or use of the contents of this information is
>> prohibited and may be unlawful. If you have received this electronic
>> transmission in error, please reply immediately to the sender that you have
>> received the message in error, and delete it. Thank you
>>
>>
>>
>>
>> _______________________________________________
>> Ale mailing list
>> Ale at ale.org
>> http://mail.ale.org/mailman/listinfo/ale
>> See JOBS, ANNOUNCE and SCHOOLS lists at
>> http://mail.ale.org/mailman/listinfo
>>
>>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.ale.org/pipermail/ale/attachments/20160607/a3d98dff/attachment.html>