Re: ICMP Query!!!

Marko,
I have to disagree with you too, is it in my nature ?

First of all, ICMP and IGMP have 3 out of 4 letters in common,
and not only that, in the same place. That must mean something! :)

Second, as soon as you go IPv6, ICMP takes the chore of multicast
signalling at the LAN, so it has to do with mcast there.

-Carlos

Marko Milivojevic @ 12/11/2010 21:00 -0300 dixit:
> I would just like to point out that ICMP has nothing to do with IGMP
> and multicast.
>
> --
> Marko Milivojevic - CCIE #18427
> Senior Technical Instructor - IPexpert
>
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> On Fri, Nov 12, 2010 at 18:39, Paul Negron <negron.paul_at_gmail.com> wrote:
>> It is true that they help convey information or make sure a path is clear to
>> send larger packets, but ICMP is not intended to help create state within
>> the control plane.
>>
>> Like I said....
>>
>>
>> IGMP helps to create a path in which Traffic will use.
>> ICMP uses the data plane that a control plane protocol created.
>>
>> Does anyone else have anything useful to contribute?
>>
>> I would always love to hear another explanantion that can be useful and I'm
>> sure CCIE KID would too, unless the "KID" already gets it.
>>
>>
>> Narbik?
>>
>>
>> --
>> Paul Negron
>> CCIE# 14856 CCSI# 22752
>> Senior Technical Instructor
>> www.micronicstraining.com
>>
>>
>>
>>> From: Carlos G Mendioroz <tron_at_huapi.ba.ar>
>>> Date: Fri, 12 Nov 2010 17:39:56 -0300
>>> To: Paul Negron <negron.paul_at_gmail.com>
>>> Cc: CCIE KID <eliteccie_at_gmail.com>, Cisco certification
>>> <ccielab_at_groupstudy.com>
>>> Subject: Re: ICMP Query!!!
>>>
>>> I would call ICMP redirect packets a control thing though.
>>> And when using ICMP probes (echo request/reply) as part of a IP SLA
>>> construct, they are a control thing too.
>>> What about packet too big ?
>>>
>>> In fact, Internet Control Message Protocol sounds a lot to control :)
>>>
>>> -Carlos
>>>
>>> Paul Negron @ 10/11/2010 14:21 -0300 dixit:
>>>> I apologize, B I meant to state:
>>>>
>>>>> IGMP packets are used to create state on the Router that receives them.
>>>>> Since it is used to create state, it is a part of the Control Plane process.
>>>>> It joins so that trees can be built, Although it is PIM that builds them.
>>>>>
>>>>> ICMP is generating traffic and is not associated with building ANYTHING. It
>>>>> is considered Data Plane traffic. It uses paths that have already been setup
>>>>> by a Control Plane Protocol, like OSPF or EIGRP or PIM for that matter.
>>>> I accidentally stated ICMP twice.
>>>>
>>>> Paul
>>> --
>>> Carlos G Mendioroz B <tron_at_huapi.ba.ar> B LW7 EQI B Argentina
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-- 
Carlos G Mendioroz  <tron_at_huapi.ba.ar>  LW7 EQI  Argentina
Blogs and organic groups at http://www.ccie.net