IPv6 PI allocation

Daniel Suchy ds at nix.cz
Thu May 17 15:24:55 CEST 2007


Hi Itojun,
> 	ok, but i guess TCAM-based CISCO routers would be able to handle
> 	256K IPv6 routers (instead of 512K)

you're not correct, numbers posted by Gert was - in Cisco FIB TCAM uses 
IPv6 prefix 144 bits and IPv4 prefix uses 72 bits. That's explains why 
you have half number of IPv6 prefixes in hardware compared to maximum of 
IPv4 possible.

Regards,
Daniel

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