Paul Vixie wrote:
i think all oldtimers are skewed. growth in number of enterprises will be of the small kind where renumbering isn't so painful. exceptions where there is enough size to make renumbering painful won't overflow the routing table the way the ipv4 "swamp" threatened to do back in the days of 64MB RP cards.
Here is a possible multi level solution for end sites and non /32 qualifiers: - Sites that dual-home use alternate path encoding with PA /48's - Sites that tirpple home do the same but get PA /40's to make up for the loss of site subnet bits in tripple mode. - Sites that multihome 4 ways or more get a PI /40 - Large sites with more than X devices get a PI /40 if at least (dual|tripple)homed to avoid massive renumbering/provider lock-in. This would set the bar high enough to limit routing table growth while allocating PI space to those who need it the most. -- Kevin Loch