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

From: Scott M Vermillion <scott_ccie_list_at_it-ag.com>
Date: Thu, 3 Feb 2011 17:19:57 -0700

Oh, and also:

Best luck with your rapidly approaching lab date!!

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

On Feb 3, 2011, at 5:07 , Scott M Vermillion wrote:

> So I brushed up a little bit on my draft-rosen stuff this afternoon
> (been nearly three years since I even thought about that mess!) and
> then had a closer look at your configs. In truth, it will probably
> take an SP CCIE or SP CCIE candidate to weigh in and help you out but
> I will be happy to try. At the very least, I still feel very strong
> in general mcast, if not MDT, specifically.
>
> Are you perchance running this in a Dynamips environment? If so, I'd
> love to see that .net file. Also, you said you could share further
> details, which would be most helpful. Probably more so to an SP type
> than and R&S guy like myself but the more detail you post, the more
> likely you are to entice someone knowledgeable into the problem! ;-)
>
> ____________________________________________
> There are only 10 types of people in the world:
> Those who understand binary and those who do not...
>
> On Feb 2, 2011, at 7:31 , Asfer Shah wrote:
>
>> Thanks
>> Scoottt, I surely will try to check the tutorials but the problem is
>> that Its
>> very basic thing which is not coming up ?
>> I am trying to run the Multicast in INTRA-AS between my two sites(R9
>> and
>> R7/R8) connected via MPLS - VPN's . (R4 is RP and client & R5 is
>> SOURCE)
>> Everything runs smoothly unless, I introduce the default route from
>> the (R6)
>> which is the internet gateway for my PE's of ABC Vpn's.
>>
>> Whenever the default route is injected my PE outgoing interface
>> donot point
>> towards the tunnel and starts to follow the 0.0.0.0 source !! which
>> breaks my
>> multicast communication and messes everything !
>> I can share the details with you even further, I discussed this
>> scenerio will
>> couple of other CCIE's but somehow no one has managed to answer my
>> solution ?
>> thanks
>>
>> CC: markom_at_ipexpert.com; ccielab_at_groupstudy.com
>> From: scott_ccie_list_at_it-ag.com
>> To: s_asfar_at_hotmail.com
>> Subject: Re: No SOLUTION till DATE for this SCNERIO ???? Challenging
>> MULTICAST
>> TASK ?? Please help
>> Date: Wed, 2 Feb 2011 11:17:11 -0700
>>
>> 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>
>>
>>
>> Blogs and organic groups at http://www.ccie.net
>>
>> _______________________________________________________________________
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>> http://www.groupstudy.com/list/CCIELab.html
>
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
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Received on Thu Feb 03 2011 - 17:19:57 ART

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