Re: No SOLUTION till DATE for this SCNERIO ???? Challenging

So it looks as if you've got some vendor's full-scale SP lab up and
running there. Lots of layers to an onion like that which are not
going to be readily apparent with just a glance over the configs.
It's also not evident from your text exactly what was working before
the introduction of the default route came along and broke things. I
see you've got a couple of 'ip igmp join-group' commands on your CEs
but it's not clear to me what you were pinging - and from where - that
worked and then later ceased working. What mcast troubleshooting have
you done thus far?

I try to keep my posts as vendor-neutral as possible but if you google
"multicast troubleshooting" you will find a couple of very, very good
tutorials out there. If you follow a logical process of validating
all of your various control and data plane RPF checks, etc, you are
bound to find the problem for yourself quickly...

____________________________________________
There are only 10 types of people in the world:
Those who understand binary and those who do not...

On Feb 2, 2011, at 2:50 , Asfer Shah wrote:

>
> thanks for the quick Reply, Actually I am appearing in les than a
> week time and I am failing to understand this buG !!
> nothing much I could figure out !!!
> I am hell stuck,since either multcast or Internet will wok at a
> single time !!
>
> CE1 is dual homed to PE5 and PE3, we have three GRE (MDT) tunnels
> between PE2 , PE 5 and PE3
> thanks
>
>
> |--------------------------
> PE5----------
>
> | |
> > > INT---------PE1--------PE2--------------------------PE3--------CE1
> > > | |
> > > | |
> > > PE4 CE2
>
>
>
> > From: markom_at_ipexpert.com
> > Date: Wed, 2 Feb 2011 10:16:40 +0100
> > Subject: Re: No SOLUTION till DATE for this SCNERIO ????
> Challenging MULTICAST TASK ?? Please help
> > To: s_asfar_at_hotmail.com
> > CC: bmcgahan_at_ine.com; scott_ccie_list_at_it-ag.com; ccielab_at_groupstudy.com
> ; narbikk_at_gmail.com
> >
> > Can you please post all the relevant configurations to the list so
> we
> > can actually troubleshoot it? :-)
> >
> > --
> > 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 Wed, Feb 2, 2011 at 09:03, Asfer Shah <s_asfar_at_hotmail.com>
> wrote:
> > > Hello ,
> > > I have a Query to which no one have answered so far ??
> > >
> > > PE2-PE3 are in AS20 and are MP-iBGP neighbor to each other.
> > > CE1 and CE2 are two sites connected to PE2 and PE3 respectively
> talking
> > > through the MPLS VPN cloud.
> > > The multicast distribution trees are also configured and the
> Intra-AS
> > > multicast end-to-end is working smoothly fine between CE1-CE2.
> > >
> > > I have the below topology in which I have a trouble.
> > >
> > >
> > >
> > > INT---------PE1--------PE2-------PE3--------CE1
> > > | |
> > > | |
> > > PE4 CE2
> > >
> > >
> > > Now,I have PE1 in AS 10 which is gateway to the internet and is
> peering with
> > > PE2 for ipv4 (add-fam) only.
> > > I have PE4 in (AS30) which is peering with PE1 for both ipv4 and
> vpnv4
> > > (add-families)
> > > PE4 is Multihop Mp-eBGP neighbor to both the PE2 and PE3.
> > >
> > > PE1 is advertising the internet (0.0.0.0 in vpnv4 add family) to
> PE4 and then
> > > PE4 is throwing it to PE2 and PE3
> > > After manipulating the Next-Hop , PE2 and PE3 do watch the
> internet default
> > > vpnv4 route 0.0.0.0 coming from PE1 and they do access the
> internet easily.
> > >
> > > At this point when I check back the multicast between CE1 and
> CE2 , it will
> > > stop working and the traffic is dropped
> > > The momnet , I remove the 0.0.0.0 route adver in the vpnv4 from
> PE1 , my
> > > multicast will run perfectly fine.
> > >
> > > There is PIM running between PE1 PE2 and PE4 but no solution to
> the problem
> > > till date !!
> > > Can you please help me in this special problem ???
> > >
> > >
> > > Blogs and organic groups at http://www.ccie.net
> > >
> > >
> _______________________________________________________________________
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> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> <CE1.cfg><CE2.cfg><PE1.cfg><PE2.cfg><PE3.cfg><PE4.cfg><PE5.cfg>

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Received on Wed Feb 02 2011 - 11:17:11 ART