On 12/8/09 1:05 PM, "Cameron Byrne" <[email protected]> wrote: > > I won't say DS-lite is easy or not, but i will say native IPv6 or > native dual stack on the UE is easier than DS-Lite.
I think it really depends on the wireless architecture, how many layers of tunnel are already in place and where those tunnels terminate. If those L2 tunnels ends where you would naturally place your v4 NATs, there is not much to be gained with DS-lite, you might as well go with full dual-stack, the v4 address being a private one. If you decide to locate your NATs elsewhere, either for scaling reason, contractual reasons (eg who owns the address space in an NVNO type deployment) or any other reasons, this is a different story. In that model, DS-lite provide you a great deal of flexibility and offer you to locate your NATs/AFTRs anywhere. You can get horizontal scaling, N+1 redundancy, traffic volume adaptation, etc... - Alain.
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