Sunday, April 19, 2020

When connected to an IX, why do larger orgs prefer bilateral peering ?

[For background, I look after a small AS connected to a few public IXs]

I have noticed that many larger organisations who are connected to an IX, do not use the provided route server for multilateral peering.

They often have an open peering policy and are happy to connect using the layer2 IX connection, but require establishing a direct BGP session between the two parties.

What are some of the benefits of bilat over the exchange link that make it preferable for these companies to avoid participating on the route server?

EDIT: Apart from just being curious, it caused me to wonder if I should remove our own AS from the routing server.



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