On 11/9/10 9:08 AM, Templin, Fred L wrote: > > After the 6, 7 or 8 figure range in terms of number of sites > > 6rd is enabling, the advantages vs. stateful methods > > become quite apparent. > > I'm not sure that is exactly true. If there is concern for > scaling, simply add more routers/servers the same as for 6rd. I'm referring to the overall configuration, operation and combined state of the tunnels themselves regardless of the number of routers. Setting up and maintaining hundreds or even thousands of configured, stateful, tunnels is very different than hundreds of thousands, millions or tens of millions. Alternatively, 6rd scales from small to large to very large, at the cost of bits in the IPv6 address rather than individual configuration and state. How expensive those bits are (or should be) is the subject of debate in various RIR forums. If we take for granted they are not free, then that needs to be considered when deciding which tunneling option to deploy.
- Mark > Thanks - Fred > [email protected] _______________________________________________ Softwires mailing list [email protected] https://www.ietf.org/mailman/listinfo/softwires
