Continuing with the NNI topic, on this post you will see NNI Option 3a and 3b.
You can download all material on the link below.
Download on
https://drive.google.com/open?id=0BwOGoUP3NhxpQXN3QlBHOUhtb1k
Customer-A MPLS and NNI - PPT Study Case - ABLONGO NETWORKS v2.0.PDF
Presentation File - PDF format
MPLS-NNI Lab - Not Configured.zip
Virtual LABs - EVE-NG format
On Option 3a, means that the RRs routers from each ISP are connected directly, so the ASBR function is fused on the same hardware/device making no sense the redistribute BGP on the IGP of each ISP RR.
Below i will show only the 3b, but you can use it as reference if your option is use the 3a.
