Brian E Carpenter wrote: > Suppose you're operating a large international network with (to take > a random example) IPv4 1/8 as its PI prefix. Are you assuming that an organization operating such a large network does not operate any externally accesible servers? I would rather assume that there are a lot of such servers distributed worldwide and the servers are, of course, multihomed. So, the servers have PI addresses. As there is no reason to assign extra address block that the PI addresses will be from 1/8. Considering that trafic to the servers should be localized, local PI address block with prefixes longer than 8 should be advertised to local ISPs, BGP4 advertisement of which must be coordinated worldwide. > life gets highly complex if you want multihoming. That's life. > I'm sure there are people who can give a more accurate explanation > than that. That there are poeple who are doing unreasonable things does not rationalize their behaviour. Masataka Ohta _______________________________________________ Ietf@xxxxxxxx https://www.ietf.org/mailman/listinfo/ietf