[ipv6-wg] IPv6 on P2P links

On Thursday 26 May 2011 10:07:39 Jasper Jans wrote:
> Can anyone give me some real world experience with IPv6 numbering on P2P
> links in their network?

I've not yet been able to figure out another aspect of prefixes longer than 
/64.

How are TCAMs in hardware routers and routing lookup code going to handle 
matches longer than 64 bits?

Are ALL vendors putting all the 128 bits in the TCAMs or is there someone (or 
most?) with reduced match size that implies a second lookup?

Or is the CPU-based algorithm going to be slower if the match is greater than 
the native CPU word size?

That, alone would justify avoiding having prefixes longer than a /64 in the 
FIB since it would mean reduced PPS throughput for those destinations.

Is anyone with an insight view of actual lookup method able to enlighten me a 
bit?

Bye,

-- 
  Daniele "Vihai" Orlandi
  Bieco Illuminista #184213