I cannot enable jumbo frames because client and server are 2 hops away and
I cannot modify the network. They use public ips for connection, so I can
only reduce MTU server side.
Why is there an improvement of reliability when MTU = 1400 in your opinion?


Il giorno sab 18 gen 2020 alle ore 10:56 Radosław Korzeniewski <
rados...@korzeniewski.net> ha scritto:

> Hello,
>
> Thanks for the update.
>
> sob., 18 sty 2020 o 09:36 Marco Marino <marino....@gmail.com> napisał(a):
>
>> It seems that setting MTU = 1400 on the server solves the problem.
>>
>
> So, it indeed was a network problem then. :)
>
>
>> I'm doing a lot of tests with large backup (150GB, 1.5hours long). I will
>> update this thread if the problem persists.
>>
>
> For the best network performance you should raise MTU value up to 9000
> ensuring all your network equipment support it and not lower it to less
> than 1500.
> I bet you have some kind of network packet encapsulation on your backup
> path. A firewall or vpn, right?
>
> best regards
>
>
>> Thank you
>>
>> Il giorno gio 16 gen 2020 alle ore 16:21 Radosław Korzeniewski <
>> rados...@korzeniewski.net> ha scritto:
>>
>>> Hello,
>>>
>>> pon., 13 sty 2020 o 20:44 Marco Marino <marino....@gmail.com>
>>> napisał(a):
>>>
>>>> so please don't tell me that the problem is the network
>>>>
>>>
>>> It depends. You did not show any logs, so it is a bit hard to judge what
>>> is going on your site.
>>>
>>>
>>>> Please can you give me some advise? I don't know how to solve nor how
>>>> to debug this problem. If I launch bacula with maximum debug level I don't
>>>> see any interesting information related to the problem.
>>>>
>>>
>>> Could you please show us your failed job logs?
>>>
>>> thanks
>>> --
>>> Radosław Korzeniewski
>>> rados...@korzeniewski.net
>>>
>>
>
> --
> Radosław Korzeniewski
> rados...@korzeniewski.net
>
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