From: Paul Cosgrove (paul.cosgrove@heanet.ie)
Date: Mon Sep 01 2008 - 15:15:50 ART
Hi Raul,
It is difficult to understand the cisco quote without the context in
which it was written, but it may have been intended to be a simplified
view. Standing on its own, I would not agree with it myself.
Joe has already pointed out the ability to use priorities as a
difference between the BSR and AutoRP protocols, and I pointed out a few
differences as well. Likewise PIMv1 and PIMv2 also have differences
(different IP protocol number, different destination address, DR
priority etc.).
AutoRP and BSR are used for the same primary task, namely to exchange
information about available RPs and groups each serves. However the
functionality of these protocols is not the same in every respect, and I
don't see how those differences will be balanced out by the addition of
PIMv1 and PIMv2 when doing that simply adds more differences.
Paul.
raul raul wrote:
> ya ; you are right ; but during the real lab ; they wan us to think ......not only apply or remeber by hard
>
> "PIM Version 1, together with the Auto-RP feature, can perform the same tasks as the PIM Version 2 BSR" <----extract from CISCO
>
>> Date: Sun, 31 Aug 2008 12:02:36 +0100> From: paul.cosgrove@heanet.ie> To: juvenn@hotmail.com> CC: taurusadnan19@gmail.com; pgstephan@gmail.com; shaheeno@maaden.com.sa; ccie_rs@rocketmail.com; ccielab@groupstudy.com> Subject: Re: pim Version 2??> > Will depend on what else the question says. If you have to use only> PIMv2 to propagate RP information automatically, then use BSR. AutoRP> uses UDP rather than PIMv2 packets.> > If a question only asks you to configure only PIMv2 and does not state> that you have to propagate the information automatically, to my mind you> could also use static definitions. Note that this does not mean that the> people writing the questions share my interpretation, so you have to use> your own judgement.> > Personally I think some practice questions are a little too vague about> this, and you could even argue a case for using PIMv2 with Dense Mode> for some of them. Questions are not always as clear as they as intended,> mistakes happen in this
w!
> orld. You should consider the full scenario and> think about what the intention was behind the question, not just what> scope the question provides you with. In the lab, ask the proctor and> they will clear up any ambiguities.> > Paul.> > raul raul wrote:> >> > Hi Paul ;> >> > PIM Version 1, together with the Auto-RP feature, can perform the same> > tasks as the PIM Version 2 BSR> >> > if i remeber correctly ; Brian mention this ; Pim ver1.5 is auto RP;> > Pim Ver2 is BSR> >> > If Question ask for pim version 2 only ; what should we do ?> >> > BSR ?> >> > Thanks> >> >> > > Date: Sat, 30 Aug 2008 14:40:24 +0100> > > From: paul.cosgrove@heanet.ie> > > To: juvenn@hotmail.com> > > CC: taurusadnan19@gmail.com; pgstephan@gmail.com;> > shaheeno@maaden.com.sa; ccie_rs@rocketmail.com; ccielab@groupstudy.com> > > Subject: Re: pim Version 2??> > >> > > Hi Raul,> > >> > > Saying "PIMv2 is BSR" is perhaps a little too simplistic, "BSR is part> > > of the PIM(v2) Sparse Mode standard"
ma!
> y be more accurate.> > >> > > PIM version 2 relates to the for!
> mat and
>
> useage of the PIM packets, and> > > was originally defined as part of RFC2362 (PIM-SM), later also being> > > used/extended in RFC3973 for PIM-DM. Both of these were classed as> > > experimental RFCs and have since been deprecated. The same pim version> > > number was used by both SM & DM, but BSR is obviously not relevant to> > > dense mode at all, so was only mentioned in 2362.> > >> > > The first real standard was RFC 4601 (PIM-SM) and BSR has since been> > > updated by RFC 5059 "BSR Mechanism for PIM". Because DM and PIMv1 are> > > dead, PIMv2 is often used to mean the current PIM-SM standard (as in> > > your reply); this defines BSR and also gives the options of statically> > > defining and embedding RP info. It does NOT define AutoRP, so may rule> > > out use of AutoRP depending on the question.> > >> > > Paul.> > >> > > raul raul wrote:> > > > Pim Ver 2 is BSR ....> Date: Sat, 30 Aug 2008 15:29:47 +0500>> > From: taurusadnan19@gmail.com> To: pgstephan@gmail.com> Sub
je!
> ct: Re:> > pim Version 2??> CC: ShaheenO@maaden.com.sa; ccie_rs@rocketmail.com;> > ccielab@groupstudy.com> > Dear group members:-> can i ask Auto-rp with> > sparse-dense mode to PIM VERSION 2> > your reply will help me alot>> > Regards> > > On Sat, Aug 30, 2008 at 12:43 PM, Peter Stephan> > <pgstephan@gmail.com> wrote:> > > I would rather say that PIM v2 means> > BSR.> >& gt; > -----Original Message-----> > From:> > nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of> >> > Osamah Shaheen> > Sent: Saturday, August 30, 2008 11:01> > To: MANAN;> > ccielab@groupstudy.com> > Subject: RE: pim Version 2??> >> > PIM v2> > means pim sparse and dense mode> > To configure it> >> > Int f0/0> >> > Ip pim sparse-dense-mode> >> >> > Hope this make sense> >> > Osamah>> > >> > -----Original Message-----> > From: nobody@groupstudy.com> > [mailto:nobody@groupstudy.com] On Behalf Of> > MANAN> > Sent:!> > > 2!> > > > 008-08-30 09:57> > To: ccielab@groupstudy.com> > Subject: pim>
>!
> Version 2??> >> > Hello to all group members:-> > i want to k!
> now what
>
>>> is PIM version> > 2??> > can any body tell me about pim version 2 how> > to configure it.> > if Any Web link please send it to me.> >> >> > Regards > >> >> > Blogs and organic groups at http://www.ccie.net> >>> > >> > _______________________________________________________________________>> > > Subscription information may be found at:> >> > http://www.groupstudy.com/list/CCIELab.html> >> >> >> >> >> >> >> >>> > >> >> >> > ---------------------------------------------------------------------------->> > > ----> >> >> > This message and any attachments are confidential and> > intended solely for> > the use of the individual or entity to whom> > they are addressed. If you are> > NOT the intended recipient you> > should not use, copy, disclose or place any> > reliance on this e-mail> > or its contents, and immediately notify the sender> > by return e-mail> > and delete all copies of this!> > > e!> > > > -mail from your system.> >> > Statement and opinions expressed!> > > > i
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>>>>> 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> > >> > >> > >> > >> > >> > >> > >> >> >> > ------------------------------------------------------------------------> > Enrich your blog with Windows Live Writer. Windows Live Writer> > <http://get.live.com/writer/overview>> > > Blogs and organic groups at http://www.ccie.net> > _______________________________________________________________________> Subscription information may be found at: > http://www.groupstudy.com/list/CCIELab.html> > > > > > >
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