Re: PIM BIDIR

My point was not good use of english.
I myself being a non-english native speaker, that would be ridiculous.

My point was trying to highlight that the problem was conceptually
the same, so you might expect same issues, concepts, words, etc. to
show at both places. And to point to underlying models that may help
to comprehend the problem.

-Carlos

David Prall @ 26/01/2010 10:46 -0300 dixit:
> With all of the non-english speaking individuals that make up groupstudy I
> find it funny we can even think about proper English grammar.
>
> Now back to BiDir PIM. Can anyone tell me how you provide for RP redundancy
> in a BiDir environment, using static RP configuration?
>
> David
>
> --
> http://dcp.dcptech.com
>
>> -----Original Message-----
>> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
>> Scott Morris
>> Sent: Tuesday, January 26, 2010 8:02 AM
>> To: Joe Astorino
>> Cc: ron.wilkerson_at_gmail.com; Carlos G Mendioroz; David Prall; Hans
>> None; ccielab_at_groupstudy.com
>> Subject: Re: PIM BIDIR
>>
>> I find it more ironic that a list just full of wonderful grammar
>> lesson
>> candidates decides to take the time to actually worry about this one!
>> IMHO, I would not consider Joe to be one of the "big offenders".
>>
>> ;)
>>
>> Joe Astorino wrote:
>>
>> OK -- I find it "interesting" that David and I thought of the same
>> thing. Jesus Christ...
>>
>> On Tue, Jan 26, 2010 at 7:48 AM, <ron.wilkerson_at_gmail.com>
>> wrote:
>>
>> Carlos is questioning your use of the word ironic and rightfully
>> so. Very cool that gs provides grammar lessons here and there. :)
>>
>> -----Original Message-----
>> From: Joe Astorino <jastorino_at_ipexpert.com> Date: Tue, 26
>> Jan 2010 07:15:33
>> To: Carlos G Mendioroz <tron_at_huapi.ba.ar> Cc: David Prall
>> <dcp_at_dcptech.com> ; Hans None <acsyao_at_hotmail.com> ;
>> <ccielab_at_groupstudy.com> Subject: Re: PIM BIDIR
>>
>> Yep , just saying it was ironic how David and I thought of the same
>> thing.
>>
>> On Tue, Jan 26, 2010 at 7:06 AM, Carlos G Mendioroz
>> <tron_at_huapi.ba.ar> wrote:
>>
>> Where is the irony ?
>> Networks are graphs, and when you need a cycle free set of arcs
>> (links)
>> that connect all the nodes (routers/switches) you are looking for
>> a spanning tree. It's all already defined in mathematics, and we
>> are reusing already defined terms :) (thanks God we did not
>> reinvent
>> the wheel once !!!)
>>
>> Dijkstra was never thinking of cisco when he did SPF algo either.
>>
>> -Carlos
>>
>> Joe Astorino @ 25/01/2010 21:09 -0300 dixit:
>>
>> It will forward up to the RP via the DF interface. Ironically
>> I sort
>> of think about it like spanning-tree too. The DF is sort of
>> like your
>> designated port -- It is the best path up to the RP. So the
>> multicast
>> starts sending and hits a router, and goes UP the multicast
>> tree
>> (hence the bi-dir term) towards the RP via the DF interface.
>> Once the
>> RP gets the information it will be sent DOWN the shared tree to
>> receivers.
>>
>> On Mon, Jan 25, 2010 at 3:55 PM, David Prall
>> <dcp_at_dcptech.com> wrote:
>>
>> Based on what interface the multicast packet was received on.
>> The RP sets
>> the root of the tree and that is all in BiDir. I like to
>> think of BiDir as
>> Spanning-Tree for IP Multicast, with the RP being the root.
>>
>> -- http://dcp.dcptech.com
>>
>> -----Original Message-----
>> From: nobody_at_groupstudy.com [
>> mailto:nobody_at_groupstudy.com ] On Behalf Of
>> Hans None
>> Sent: Monday, January 25, 2010 3:47 PM
>> To: ccielab_at_groupstudy.com Subject:
>> PIM BIDIR
>>
>> All,
>>
>> When a non RP router received a mcast packet, where should
>> the router
>> forward
>> the packet? Toward the RP or toward the mcast group OIL?
>>
>> My question is, how will a non RP router pin point its own
>> position?
>> Whether
>> it was in the path from the source to RP or from RP to the
>> destination
>> group?
>>
>> Thanks,
>>
>> Hans
>>
>>
>> _________________________________________________________________
>> Hotmail: Free, trusted and rich email service.
>> http://clk.atdmt.com/GBL/go/196390708/direct/01/
>>
>> Blogs and organic groups at http://www.ccie.net
>>
>> _______________________________________________________________________
>> Subscription information may be found at:
>> http://www.groupstudy.com/list/CCIELab.html
>>
>> Blogs and organic groups at http://www.ccie.net
>>
>> _______________________________________________________________________
>> Subscription information may be found at:
>> http://www.groupstudy.com/list/CCIELab.html
>>
>> --
>> Carlos G Mendioroz <tron_at_huapi.ba.ar> LW7 EQI
>> Argentina
>>
>> --
>> Regards,
>>
>> Joe Astorino CCIE #24347 (R&S)
>> Sr. Technical Instructor - IPexpert
>> Mailto: jastorino_at_ipexpert.com Telephone: +1.810.326.1444
>> Live Assistance, Please visit: www.ipexpert.com/chat eFax:
>> +1.810.454.0130
>>
>> IPexpert is a premier provider of Classroom and Self-Study Cisco
>> CCNA
>> (R&S, Voice & Security), CCNP, CCVP, CCSP and CCIE (R&S, Voice,
>> Security & Service Provider) Certification Training with locations
>> throughout the United States, Europe and Australia. Be sure to
>> check
>> out our online communities at www.ipexpert.com/communities
>> and our
>> public website at www.ipexpert.com
>>
>> Blogs and organic groups at http://www.ccie.net
>>
>> _______________________________________________________________________
>> Subscription information may be found at:
>> http://www.groupstudy.com/list/CCIELab.html
>>
>>
>> Blogs and organic groups at http://www.ccie.net
>>
>> _______________________________________________________________________
>> Subscription information may be found at:
>> http://www.groupstudy.com/list/CCIELab.html
>
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
>
>
>
>
>
>
>

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