From: Peng Li (lipeng@xxxxxxxxxx)
Date: Tue Aug 21 2001 - 07:49:09 GMT-3
Sorry, my second email is not registered with Groupstudy.com, I forward what I
wrote.
----- Original Message -----
From: "Peng Li" <peng.li@sympatico.ca>
To: "CCIE yong" <ccie_yong@hotmail.com>; <>
Sent: Tuesday, August 21, 2001 6:46 AM
Subject: Re: RPF lookup failed stuff with auto rp
> I think that Jeff's Vol II is really good enough though Cisco's one is too en
ough.
>
> Regards.
> Peng
> ----- Original Message -----
> From: "CCIE yong" <ccie_yong@hotmail.com>
> To: <ccielab@groupstudy.com>
> Sent: Monday, August 20, 2001 11:42 PM
> Subject: RE: RPF lookup failed stuff with auto rp
>
>
> > Hi,
> >
> > I'm still struggling with the multicasting topics, doesn't seems to have
> > much practise in bootcamp ot fatkid lab (normally dense mode), is there any
> > good documents that I can find in order to have good understanding on pim
> > spase mode (static rp or auto-rp) besides the Multicast Tech Tips on Cisco
> > sites which I've read thru, it provides me quite a good start but more on a
> > quick start instead of understanding it. Whereras the "developing IP
> > multicast network" of CiscoPress seems to be complicated to me as they are
> > quite lengthy. Is it important that for me to still go for this book ? or
I
> > can supplement it from other sources ?
> >
> > Appreciate your input.
> > Thanks in advance.
> > Yonger
> >
> >
> > >From: "Daniel C. Young" <danyoung99@mediaone.net>
> > >Reply-To: "Daniel C. Young" <danyoung99@mediaone.net>
> > >To: "'rsevier'" <rsevier@zealousolutions.com>, "'Atakan San'"
> > ><asan@cisco.com>
> > >CC: "'Daniel Young'" <danyoung99@mediaone.net>, <ccielab@groupstudy.com>
> > >Subject: RE: RPF lookup failed stuff with auto rp
> > >Date: Mon, 20 Aug 2001 12:14:22 -0700
> > >
> > >Very true. Also, to add to Raymond's explanation: mapping agents hold an
> > >election and advertise the winner (the RP for the group) to the 224.0.1.40
> > >address.
> > >
> > >Daniel
> > >
> > >-----Original Message-----
> > >From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> > >rsevier
> > >Sent: Monday, August 20, 2001 10:40 AM
> > >To: Atakan San
> > >Cc: Daniel Young; ccielab@groupstudy.com
> > >Subject: RE: RPF lookup failed stuff with auto rp
> > >
> > >
> > >A- It sounds like you had the mapping agent and the candidate rp pointing
> > >to your loopback, is that safe to assume? Let's understand the process now
.
> > >C-RP's will begin multicasting their candidacy to be the RP via RP-announc
e
> > >messages which are sent via the 224.0.1.39 group. The mapping agents will
> > >multicast the contents of their group-to-RP mapping cache to the 224.0.1.4
0
> > >group. All other routers will join the 224.0.1.40 group. So I am going t
o
> > >guess that if the interface that you have as the C-RP and the MA needs to
> > >be
> > >in the PIM process in order to participate in the 224.0.1.39 & 224.0.1.40
> > >groups. I will try to validate with some reference documentation at a late
r
> > >time. Hope this helps.
> > >
> > >Raymond
> > >
> > >-----Original Message-----
> > >From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> > >Atakan San
> > >Sent: Monday, August 20, 2001 9:28 AM
> > >To: rsevier
> > >Cc: ccielab@groupstudy.com
> > >Subject: Re: RPF lookup failed stuff with auto rp
> > >
> > >
> > >Thanks for all answers and further commends on this guys
> > >I put ip pim sparse-dense-mode under loopback and it worked
> > >Raymond I checked your stuff My loopback is/was always reachable via
> > >unicast
> > >At this point, I have no possibility to have a kind of pim neighbor with
> > >loopback0 but needed to put pim command why ?
> > >Cheers
> > >Atakan
> > >
> > >rsevier wrote:
> > >
> > > > Atakan - Check your unicast table. The RPF lookups are dependent on
> > >the
> > > > unicast table and mroutes.
> > > >
> > > > Raymond
> > > >
> > > > -----Original Message-----
> > > > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> > > > Atakan SAN
> > > > Sent: Monday, August 20, 2001 7:46 PM
> > > > To: ccielab@groupstudy.com
> > > > Subject: RPF lookup failed stuff with auto rp
> > > >
> > > > Hi Group
> > > >
> > > > Very straightforward but hitting a strange issue
> > > > sparse-dense mode all
> > > >
> > > > X3---------------- X2
> > > > '
> > > > '
> > > > '
> > > > '
> > > > X1
> > > >
> > > > Testing auto-rp---> X3' s loopback0 192.19.27.7 is used for both
> > > > announce and discovery messages for auto-rp
> > > >
> > > > I am having RPF lookup faileds as follows on X1
> > > > 15:55:47: IP: s=192.19.27.7 (Serial0.12) d=224.0.1.39 len 52, RPF looku
p
> > > > faileds
> > > > 15:55:47: IP: s=192.19.27.7 (Serial0.13) d=224.0.1.39 len 52, RPF looku
p
> > > > faileds
> > > > 15:55:47: IP: s=192.19.27.7 (Serial0.12) d=224.0.1.40 len 52, RPF looku
p
> > > > faileds
> > > > 15:55:47: IP: s=192.19.27.7 (Serial0.13) d=224.0.1.40 len 52, RPF looku
p
> > > > faileds
> > > > X1#
> > > > 15:56:47: IP: s=192.19.27.7 (Serial0.12) d=224.0.1.39 len 52, RPF looku
p
> > > > faileds
> > > > 15:56:47: IP: s=192.19.27.7 (Serial0.13) d=224.0.1.39 len 52, RPF looku
p
> > > > faileds
> > > > 15:56:47: IP: s=192.19.27.7 (Serial0.12) d=224.0.1.40 len 52, RPF looku
p
> > > > faileds
> > > > 15:56:47: IP: s=192.19.27.7 (Serial0.13) d=224
> > > >
> > > > Thanks
> > > > Atakan
> > > > **Please read:http://www.groupstudy.com/list/posting.html
> > > > **Please read:http://www.groupstudy.com/list/posting.html
> > >**Please read:http://www.groupstudy.com/list/posting.html
> > >**Please read:http://www.groupstudy.com/list/posting.html
> > >**Please read:http://www.groupstudy.com/list/posting.html
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