nanog mailing list archives

Re: BIRD vs Quagga


From: Joe Abley <jabley () hopcount ca>
Date: Tue, 16 Feb 2010 21:50:29 -0800


On 2010-02-16, at 19:53, Tomas L. Byrnes wrote:

There's significant theoretical work, backed up with lots of practical
experience connecting a lot more nodes in real time in a lot more places
than the Internet currently does, that posits that the control and
forwarding plane should actually ALWAYS be separate, and control higher
priority, so that state management converges faster than the dataflows.

I'd like to see the countervailing, peer reviewed, references.

I have no shortage of anecdotes where a non-trivial layer-2 topology at an exchange point has left my router and 
provider X's router both able to talk to a route server, but unable to talk to each other directly. Since the NEXT_HOP 
on routes we each learnt from the route server pointed at an address we couldn't talk to, the result was a black hole.

So while your theoretical work might well have substantial merit, its application to the example at hand seems 
potentially lacking.

I am somewhat intrigued at this network you mention with which people have practical experience that has more nodes 
than the Internet does, though. That'd be quite a network.


Joe



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