If you have option B, in my opinion, you need to use SAFI MDT (address-family ipv4 mdt) in BGP on PE's and ASBR's.

On 7200 you need 12.0S for this feature, on other (smaller) platforms (3600, 3700) I am not sure if it is supported at all!

I have very simple topology, I have 5 routers connected in one chain...

 

R1-R2-R3-R4-R5

 

R1/R2/R3 is in one AS and R4/R5 in other AS... and running option B...

I have configured MSDP also and R3 and R4 are peering with each oter for MSDP... no wehn I configured the MDT on R1 and R5, I can see the tunnel is up/up but R1 and R5 didn't see each other as a neighbor for PIM... so what will be the issue there i dont understand? as well as I have configured one extra loopback on R1 and R5 and those loopback in one VRF with same RT/RD value... and R1's loopback is RP for that VRF and it is configured as a static RP for that VRF on both R1 and R5... then I configured other loopback on R1 and again that loopback is in the same VRF.... now I configured join-group on new Loopback on R1 and tried to ping that loopback (Multicast Address) from R5, I cant able to make it... as well as under sh ip rfp VRF I can see the RPF failed on all VRF routes learned in each other VRF... why is it so  that is what i am searching for...

 

all routers are runing PIM-SM between each other... R3 is SP RP for its own AS and R4 is SP RP for its own AS...

Dev

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Thanks for your reply... I just checked for the routers lower then 7200 and i didn't find any IOS which can support the Inter-AS multicast on lower routers... so can we still expect the inter-AS multicast configuration as well as testing in SP lab exam? and if yes then that set up must be having 7200, I mean they have 7200 in lab but how about the P routers... so in short to test Inter-AS MVPN we need to have to have 7200 router right!!!

DP

Thanks for your reply... I just checked for the routers lower then 7200 and i didn't find any IOS which can support the Inter-AS multicast on lower routers... so can we still expect the inter-AS multicast configuration as well as testing in SP lab exam? and if yes then that set up must be having 7200, I mean they have 7200 in lab but how about the P routers... so in short to test Inter-AS MVPN we need to have to have 7200 router right!!!

DP

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So there will not be any kind of Inter-AS MVPN in LAB Exam right, not on any Option A/B/C right?

So Internet Expert has a Rental Rack session... right!!!  so is that rack support that Inter-AS Multicast option?

DP

So there will not be any kind of Inter-AS MVPN in LAB Exam right, not on any Option A/B/C right?

So Internet Expert has a Rental Rack session... right!!!  so is that rack support that Inter-AS Multicast option?

 

DP

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Thanks Brian...

So what are the other option to configure the Inter-AS MVPN with out having ipv4 mdt family configured on router?

DP

Thanks Brian...

 

So what are the other option to configure the Inter-AS MVPN with out having ipv4 mdt family configured on router?

DP

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So I don't really know how to say this, but it seems that Inter-AS Multicast VPNs could be on the exam...

For example, I am having some trouble understanding LAB 4 Vol II task 6.5.  Is this task not technically setting up an Inter-AS Multicast VPN?  I personally have never been able to get that particular task to work, even when loading the final configs.  Is that because it is not technically supported, or is there something there that I am missing in understanding what an Inter-AS Multicast VPN is.

Thanks!

So I don't really know how to say this, but it seems that Inter-AS Multicast VPNs could be on the exam...

 

For example, I am having some trouble understanding LAB 4 Vol II task 6.5.  Is this task not technically setting up an Inter-AS Multicast VPN?  I personally have never been able to get that particular task to work, even when loading the final configs.  Is that because it is not technically supported, or is there something there that I am missing in understanding what an Inter-AS Multicast VPN is.

 

Thanks!

 

 

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Brian,

If we can make it work by hack, then can you please post the some configuration for OPTION A/B/C so we can test it!!!

I tried number of times to configure the Inter-AS MVPN with the help of MSDP between both the site but some time i got it working and some time not. So it will be great if you can help us in that topic.

Please post some working config so if it is in exam then we can work out for the same...

regards

Dev