RINA - scott whaps at the nanog hornets nest :-)

Jack Bates jbates at brightok.net
Mon Nov 8 10:48:53 CST 2010


On 11/8/2010 9:56 AM, Tony Finch wrote:
>
> I note that he doesn't actually describe how to implement a large-scale
> addressing and routing architecture. It's all handwaving.
>

That's an extremely hard to address problem. While there are many 
proposals, they usually do away with features which we utilize. I'm 
looking at a graph on the noc screen right now which shows how grotesque 
natural load balancing can be between 3 AS interconnects. I have enough 
free overhead to allow this, but eventually I will have to start 
applying policies to balance better. This implies that I'll eventually 
have to advertise sub-aggregate v6 prefixes to balance as well (perhaps 
some /31 or /32 announcements overlaying the /27).

The problem with most of the other methods are they ignore policies and 
the desired route to reach a network, and instead rely on any way to get 
there. But let's be honest, the current problems tend to be memory 
problems, not performance problems. It annoys me that vendors did this 
last increment in such a small scale guaranteeing we'll be buying new 
hardware again soon.

Jack




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