scaling linux-based router hardware recommendations

Ken Chase math at
Tue Jan 27 04:52:05 UTC 2015

On Tue, Jan 27, 2015 at 04:59:12PM +1300, Alexander Neilson said:
  >For the CCR1036-12G-4S with one full table, one domestic table (NZ - ~26k entries) some peering and iBGP full convergence took about three minutes forty seconds last time I timed it from cold.

That's terrible.

I dont know what model that is or appropriate deploys but I think a couple of my peers
use these and report similar times for their models for 500k+ routes. Still too slow.

I think the single threaded nature of the routing table manip is at fault with
the 36-but-slow cores (mikrotic). Im not sure how you get around this without
drastically rewriting the kernel, which puts you out on your own developing
new fundamental tech.

I'd be more comfortable with full-cpu models (like xeon based for eg.)

 > From: Faisal Imtiaz <faisal at>                                            
 >  Under 30sec (more like 15 to 20) on an i7 based Mikrotik for full BGP Tables.             

Ya, that.

Ken Chase - math at Toronto

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