Hi Remi, On Thu, Jul 21, 2011 at 3:13 PM, Rémi Després <[email protected]>wrote:
> > Le 21 juil. 2011 à 06:09, Jacni Qin a écrit : > ... > > Plus, the reality is even more complicated, > For example, there are group/HQ and branches. The shorter prefixes are > probably held by the group level, and several/many 4rd domains (according to > the sizes of cities under given branch) will be maintained by the branches > who can only get fragmented spaces, since a large amount of these spaces > come from leftover prefixes returned. > > > Again, not sure to get the question. > The simple approach is "one IPv6 prefix" => "one 4rd prefix" (no fragmented > spaces). > Changing the length of one changes the length of the other. > Jacni>: Yes, one IPv6 prefix to one 4rd domain, then the Access Gateway has to serve multiple domains, with hundreds of users each (according to the length of IPv4 prefix available). In this case, it's better to embed the BR function in the Gateway, otherwise the topology will be weird. Cheers, Jacni > Cheers, > RD > > > >
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