Hi, On Aug 8, 2007, at 12:38 PM, Greg L. wrote:
I would say IPv4 anycast /24 PI must be allocated for anycasting DNS service only. You simply can't add more nameservers if you hit the max limit...
The term "overkill" comes to mind. How many name servers does one actually need (anycast or not), particularly given the concept of caching?
The rules for IPv6 anycast allocations must be not that strict in the future... why? The address space will be more than enough, the router HW will be more powerful to handle large routing tables ...
While router hardware will undoubtedly be more powerful, the question of whether or not BGP will be able to converge with everybody and their great aunt having PI space is still open. Then there is the question of whether or not people will be happy with the O(10) ISPs capable of affording the hardware/power/cooling of the future DFZ routers (have you priced top-end routers recently?). This proposal seems a bit on the extreme side to me. Rgds, -drc