Testing 10GBE

Testing 10GBE

[Stefan Priebe - Profihost AG]

Hello List,

right now i'm starting to test 10GBE but i got strange results and have 
no idea why this happens:

0,1 and 2 and 3 testsystems. But i've no idea why only Test system 2 <=> 
3 have problems with speed but 3 with 0 or 2 with 0 does not have a problem.

1 => 0 => 9,9Gbit/s
1 => 2 => 5,7Gbit/s
2 => 0 => 9,9Gbit/s
2 => 1 => 5,7Gbit/s
0 => 1 => 9,9Gbit/s
0 => 2 => 9,9Gbit/s

Any ideas?

Stefan

Re: Testing 10GBE

[Stefan Majer]

Hi Stefan,

to give some hints it would be very helpful if you can describe your
setup a bit.

What hardware is used,
what network cards,
how many interfaces per server,
do you use bonding,
what kind of switching hw
MTU size
network bandwith measurent tool

Greetings

Stefan Majer


On Tue, Jun 12, 2012 at 3:59 PM, Stefan Priebe - Profihost AG
<s.priebe@profihost.ag> wrote:
> Hello List,
>
> right now i'm starting to test 10GBE but i got strange results and have no
> idea why this happens:
>
> 0,1 and 2 and 3 testsystems. But i've no idea why only Test system 2 <=> 3
> have problems with speed but 3 with 0 or 2 with 0 does not have a problem.
>
> 1 => 0 => 9,9Gbit/s
> 1 => 2 => 5,7Gbit/s
> 2 => 0 => 9,9Gbit/s
> 2 => 1 => 5,7Gbit/s
> 0 => 1 => 9,9Gbit/s
> 0 => 2 => 9,9Gbit/s
>
> Any ideas?
>
> Stefan
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-- 
Stefan Majer
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