"Note: An IPv4 route requires only one TCAM entry. Because of the hardware compression scheme used for IPv6, an IPv6 route can take more than one TCAM entry, reducing the number of entries forwarded in hardware. For example, for IPv6 directly connected IP addresses, the desktop template might allow less than two thousand entries."
Translated: "The stated numbers for IPv6 routes are twice the real max. However, prefix compression may give better utilisation under certain conditions".
Thanks, that's the first *specific* information I've seen of equipment that might have problems (reduced number of entries) with longer than 64 bit prefixes. Fortunately we're not using 3560/3750 for IPv6 routing at the moment. Any other takers? Steinar Haug, Nethelp consulting, sthaug@nethelp.no