Re: PPPoE

He he, bytes coming from HTTPS should be extra duty if they can not be
fragmented :)

-Carlos

Marko Milivojevic @ 29/05/2012 13:40 -0300 dixit:
> I don't know, ask Cisco ;-)
>
> Joking aside - there are protocols that cannot be fragmented (HTTPS)
> and for those a little white lie on the downstream interface goes a
> long way...
>
> --
> Marko Milivojevic - CCIE #18427 (SP R&S)
> Senior CCIE Instructor - IPexpert
>
> On Tue, May 29, 2012 at 9:22 AM, Carlos G Mendioroz<tron_at_huapi.ba.ar> wrote:
>> Why would packets not get fragmented ?
>> -Carlos
>>
>> Marko Milivojevic @ 29/05/2012 11:54 -0300 dixit:
>>
>>> Larger packets will be dropped. On the downstream interfaces you can use
>>> "ip tcp adjust-mss" to remedy the problem for TCP.
>>>
>>> --
>>> Marko Milivojevic - CCIE #18427
>>>
>>> :: This message was sent from a mobile device. I apologize for errors and
>>> brevity. ::
>>>
>>> On May 28, 2012, at 18:17, Janesha Abeydeera<janesha_abey_at_yahoo.com.au>
>>> wrote:
>>>
>>>> Hi Marc,
>>>>
>>>> by setting the mtu to 1492 ,what happens to larger packets? do they
>>>> get dropped?
>>>>
>>>>
>>>> as an alternative, could we set the df bit via route-map and
>>>> apply it to the interface?
>>>>
>>>>
>>>> Thanks,
>>>> Janesh
>>>>
>>>>
>>>> ________________________________
>>>> From: marc abel<marcabel_at_gmail.com>
>>>> To: Vincent Tay<vtay.75_at_gmail.com>
>>>> Cc:
>>>> Carlos G Mendioroz<tron_at_huapi.ba.ar>; Adam Booth<adam.booth_at_gmail.com>;
>>>> "Ccielab_at_groupstudy.com"<ccielab_at_groupstudy.com>
>>>> Sent: Tuesday, 29 May 2012
>>>> 6:21 AM
>>>> Subject: Re: PPPoE
>>>>
>>>> Interleaving is a function of fragmenting. As we
>>>> know we must set the MTU
>>>> to 1492 on PPPoE links to avoid fragmentation. Maybe
>>>> this is what they
>>>> mean, set the MTU so you don't have fragmentation?
>>>>
>>>> On Mon,
>>>> May 28, 2012 at 8:12 AM, Vincent Tay<vtay.75_at_gmail.com> wrote:
>>>>
>>>>> Hi,
>>>>>
>>>>> I
>>>>
>>>> come across this question while working on a workbook. It does not have
>>>>>
>>>>> any
>>>>
>>>> solution information so i was curious. Then, i search the web and in
>>>>>
>>>>> fact
>>>>
>>>> see some issue with PPPoE and interleaving in some ISP forum.Being
>>>>>
>>>>>
>>>> practical, i want to know more so that i could use it some day.
>>>>>
>>>>>
>>>>> Regards
>>>>>
>>>> Vincent Tay
>>>>>
>>>>>
>>>>> On Mon, May 28, 2012 at 7:12 PM, Carlos G Mendioroz
>>>>
>>>> <tron_at_huapi.ba.ar
>>>>>>
>>>>>> wrote:
>>>>>
>>>>>
>>>>>> Would you share why do you want to do that ?
>>>>>>
>>>>>> Vincent Tay @ 27/05/2012 23:38 -0300 dixit:
>>>>>>
>>>>>> hi all, thanks.
>>>>
>>>> how do i configure to prevent interleaving?
>>>>>>>
>>>>>>>
>>>>>>> Regards
>>>>>>> Vincent Tay
>>>>>>>
>>>>>>> On 27 May, 2555 BE, at 10:59 PM, Carlos G
>>>>
>>>> Mendioroz<tron_at_huapi.ba.ar>
>>>>>>>
>>>>>>> wrote:
>>>>>>>
>>>>>>> Adding to what Adam said,
>>>>
>>>> interleaving also may happen at ADSL,
>>>>>>>>
>>>>>>>> underneath of pppoe, to distribute
>>>>
>>>> the data over time get better
>>>>>
>>>>> protection
>>>>>>>>
>>>>>>>> of data loss from spike
>>>>
>>>> noise.
>>>>>>>>
>>>>>>>>
>>>>>>>> I mention this because of your will to get rid of
>>>>
>>>> interleaving.
>>>>>>>>
>>>>>>>> Interleaving in LFI has no really bad side to it.
>>>>
>>>> Interleaving in ADSL
>>>>>>>>
>>>>>>>> brings latency up.
>>>>>>>>
>>>>>>>> -Carlos
>>>>>>>>
>>>>>>>>
>>>> Adam Booth @ 27/05/2012 10:11 -0300 dixit:
>>>>>>>>
>>>>>>>>
>>>>>>>>> Hi Vincent,
>>>>>>>>>
>>>>>
>>>>>>>> Interleaving is a function associated with ML-PPP (typically you find
>>>>>
>>>>>
>>>>>>>> reference to it as LFI). You could do ML-PPPoE if you really wanted
>>>>>
>>>>> to,
>>>>>>>>>
>>>>>>>>> I
>>>>>>>>> guess as a way to increase bandwidth or provide access
>>>>
>>>> resiliency.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Cheers,
>>>>>>>>> Adam
>>>>>>>>>
>>>>>>>>> On Sun, May 27,
>>>>
>>>> 2012 at 10:49 PM, Vincent Tay<vtay.75_at_gmail.com>
>>>>>>>>>
>>>>>>>>> wrote:
>>>>>>>>>
>>>>>>>>>
>>>> Hi all,
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> How do i ensure that there are no interleaving for
>>>>
>>>> PPPoE? What does
>>>>>
>>>>> it
>>>>>>>>>>
>>>>>>>>>> means and how do i configure it?I have search
>>>>
>>>> the entire documents in
>>>>>>>>>>
>>>>>>>>>> vain.
>>>>>>>>>>
>>>>>>>>>> Regards
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> Blogs and organic groups at http://www.ccie.net
>>>>>>>>>>
>>>>>>>>>>
>>>> ______________________________**______________________________**
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>>>>>>>> --
>>>>>>>> Carlos G Mendioroz<tron_at_huapi.ba.ar>
>>>>
>>>> LW7 EQI Argentina
>>>>>>>>
>>>>>>>>
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>>>>
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>>>>>> --
>>>>>> Carlos G Mendioroz<tron_at_huapi.ba.ar> LW7 EQI Argentina
>>>>>
>>>>>
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>>>>
>>>>
>>>> --
>>>> Marc Abel
>>>> CCIE #35470
>>>> (Routing and Switching)
>>>>
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-- 
Carlos G Mendioroz  <tron_at_huapi.ba.ar>  LW7 EQI  Argentina
Blogs and organic groups at http://www.ccie.net