Re: Shim6, was: Re: filtering /48 is going to be necessary

james machado wrote:

...

For high speed (fixed time) routed look up with 1M entries, SRAM is cheap at /24 and is fine at /32 but expensive and power consuming TCAM is required at /48.

That's one reason why we should stay away from IPv6.

I found this bit of research from 2007 ( http://www.cise.ufl.edu/~wlu/papers/tcam.pdf ). It seems to me there are probably more ways to mix and match different types of ram to be able to deal with this beast.

But it's not fixed time. Worse, it synthesis IPv6 table from the current IPv4 ones, which means the number of routing table entries is a lot less than 1M. Masataka Ohta