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Gossip v BGP network convergence/performance


(Chrismarino) #1

Watched the Networking Deep Dive video and was curious to know more about the performance of Gossip v. BGP to distribute network state.

I agree with Jana’s point that BGP will not converge fast enough for large dynamic container environments, but wondering if is there any data available to show how long BGP would take to converge? I have not seen any but it would be very interesting to see.

Thanks
CM


(Mathewlodge) #2

http://blog.ine.com/2010/11/22/understanding-bgp-convergence/

A great place to start.

As someone who was around when BGP was being developed, I can tell you it was never designed for intra-AS traffic. Actual data depends on lots of conditions, including the transport, the implementation, CPU available to the BGP process etc. Vendors like Cisco and Juniper have spent years on this.