Re: Internet Traffic load balancing

I guess you need a number of flows to test it.
Time to play with pkgen, ostinato or your favourite trafic factory toy.
(or get a hold of a live network router and some test individuals like
your family browsing the internet ? :)

-Carlos

Marko Milivojevic @ 02/05/2011 20:56 -0300 dixit:
> Yup - found that one, but that's still 2nd hand information and not
> supported by measurements. I asked him directly about it to see if he
> tested this with traffic.
>
> I still remain open to the idea that this may work, but I'd like to
> see it. I don't have measurement equipment required to test this in
> detail.
>
> I wonder if we could test this with a simple ping?
>
> --
> Marko Milivojevic - CCIE #18427
> Senior Technical Instructor - IPexpert
>
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> On Mon, May 2, 2011 at 16:53, Carlos G Mendioroz <tron_at_huapi.ba.ar> wrote:
>> I don't recall the place where I see it first,
>> Ivan Pepelnjak has a nice blog post at
>> http://blog.ioshints.info/2006/10/cef-load-sharing-details.html
>>
>> -Carlos
>>
>> Marko Milivojevic @ 02/05/2011 20:40 -0300 dixit:
>>> I don't follow every topic on GS in detail, but as I said - I haven't
>>> tested this.
>>>
>>> Do you have a link to a document where this is detailed?
>>>
>>> --
>>> Marko Milivojevic - CCIE #18427
>>> Senior Technical Instructor - IPexpert
>>>
>>> FREE CCIE training: http://bit.ly/vLecture
>>>
>>> Mailto: markom_at_ipexpert.com
>>> Telephone: +1.810.326.1444
>>> Web: http://www.ipexpert.com/
>>>
>>> On Mon, May 2, 2011 at 16:32, Carlos G Mendioroz <tron_at_huapi.ba.ar> wrote:
>>>> AFAIK, it's been documented that it works as Brian says, i.e., 5:2
>>>> relation,
>>>> or even 7:3 if need be.
>>>> This same topic has been here some 2 or 3 months ago ?
>>>> -Carlos
>>>>
>>>> Marko Milivojevic @ 02/05/2011 20:06 -0300 dixit:
>>>>> To make my argument further:
>>>>>
>>>>> R2#sh ip cef 0.0.0.0 0.0.0.0 detail
>>>>> 0.0.0.0/0, epoch 0, per-destination sharing
>>>>> DefNet source: 0.0.0.0/0
>>>>> recursive via 169.254.1.1
>>>>> recursive via 10.0.0.1
>>>>> attached to GigabitEthernet0/0
>>>>> recursive via 169.254.1.2
>>>>> recursive via 10.0.0.1
>>>>> attached to GigabitEthernet0/0
>>>>> recursive via 169.254.1.3
>>>>> recursive via 10.0.0.1
>>>>> attached to GigabitEthernet0/0
>>>>> recursive via 169.254.1.4
>>>>> recursive via 10.0.0.1
>>>>> attached to GigabitEthernet0/0
>>>>> recursive via 169.254.1.5
>>>>> recursive via 10.0.0.1
>>>>> attached to GigabitEthernet0/0
>>>>> recursive via 169.254.2.1
>>>>> recursive via 20.0.0.2
>>>>> attached to GigabitEthernet0/1
>>>>> recursive via 169.254.2.2
>>>>> recursive via 20.0.0.2
>>>>> attached to GigabitEthernet0/1
>>>>>
>>>>> As you can see, CEF resolves this in the manner I described.
>>>>>
>>>>> --
>>>>> Marko Milivojevic - CCIE #18427
>>>>> Senior Technical Instructor - IPexpert
>>>>>
>>>>> FREE CCIE training: http://bit.ly/vLecture
>>>>>
>>>>> Mailto: markom_at_ipexpert.com
>>>>> Telephone: +1.810.326.1444
>>>>> Web: http://www.ipexpert.com/
>>>>>
>>>>> On Mon, May 2, 2011 at 15:55, Marko Milivojevic <markom_at_ipexpert.com>
>>>>> wrote:
>>>>>> On Mon, May 2, 2011 at 15:52, Brian McGahan <bmcgahan_at_ine.com> wrote:
>>>>>>> Yes each route is equal, but more point to one exit point vs. another.
>>>>>>> Try it, it works.
>>>>>> Just to make it clear - I'm not arguing. I like the solution, but I'm
>>>>>> not sure if it's going to solve the problem for the reasons below.
>>>>>>
>>>>>> I'm sure they will show in the routing table as 7 different routes.
>>>>>> However, when CEF resolves adjacencies, there will still be only two
>>>>>> exits. While we may have the impression that we have 5:2 ratio by
>>>>>> looking into the RIB, are we _actually_ going to have it with the
>>>>>> traffic.
>>>>>>
>>>>>> Without generating the traffic and measuring the output, I'm not quite
>>>>>> sure how to test this...
>>>>>>
>>>>>> --
>>>>>> Marko Milivojevic - CCIE #18427
>>>>>> Senior Technical Instructor - IPexpert
>>>>>>
>>>>>> FREE CCIE training: http://bit.ly/vLecture
>>>>>>
>>>>>> Mailto: markom_at_ipexpert.com
>>>>>> Telephone: +1.810.326.1444
>>>>>> Web: http://www.ipexpert.com/
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>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>> --
>>>> Carlos G Mendioroz <tron_at_huapi.ba.ar> LW7 EQI Argentina
>>>>
>> --
>> Carlos G Mendioroz <tron_at_huapi.ba.ar> LW7 EQI Argentina
>>

-- 
Carlos G Mendioroz  <tron_at_huapi.ba.ar>  LW7 EQI  Argentina
Blogs and organic groups at http://www.ccie.net