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