GNS3 Talks: Building large scale GNS3 networks (Part 10): ISP configuration and troubleshooting

This is part of my series "Building insane (large scale) GNS3 networks". I plan to continue adding more and more devices to the topology until..... well.... until I am done.
I continue building the GNS3 the topology by configuring the BGP routers in the ISP network.