Re: JUMBO FRAMES

We've set our mtu sizes on our interfaces to 9216 for this very reason.

On Wed, Jun 8, 2011 at 1:19 PM, Carlos G Mendioroz <tron_at_huapi.ba.ar> wrote:

> Why is that you won't see retransmissions if it is not TCP ?
> Try SIP over UDP, you will see retransmissions.
> NFS over UDP ? Same thing.
> Just because TCP is not in charge of them does not mean they will not take
> place :)
> -Carlos
>
> Marko Milivojevic @ 8/6/2011 15:34 -0300 dixit:
>
> Is the application TCP? If it isn't, you won't see the retransmissions.
>>
>> And yeah - traffic is very likely being dropped by the switch, but
>> lacking any command output, it's hard to say for sure :-)
>>
>> --
>> Marko Milivojevic - CCIE #18427
>> Senior Technical Instructor - IPexpert
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>> On Wed, Jun 8, 2011 at 08:32, Bernard Steven <buny.steven_at_gmail.com>
>> wrote:
>>
>>> What will happen if a server sends a jumbo frame to the connected switch
>>> that does not support (not configured) Jumbo frames ?
>>>
>>> My problem is when i capture traffic from server IF (tcpdump ) , i see
>>> large
>>> frames (1518<) , in the mean time , switch is not configured for JF and
>>> also
>>> i don't see any retransmissions in tcpdump. (assuming switch discards the
>>> jumbo frame). And also i dont have any visibility on the other end of the
>>> communication. Some how , application does not work.Switch is a 4948.
>>>
>>>
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>>
> --
> Carlos G Mendioroz <tron_at_huapi.ba.ar> LW7 EQI Argentina
>
>
>
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Received on Wed Jun 08 2011 - 13:30:04 ART