>> There are two kind of "anycast" proposed and operated for IPv4 - One is
>> RFC1546 [Partridge, 1993] anycast. Another is what we call "BGP anycast"
>> in this document; this is for replicating unicast servers by BGP trick.
>> We concentrate into the former in this document.
>as it is used for dns etc. *within* a single provider, it can be an igp
>which is used, not bgp.
i see, but are there such practice exist? how do they cope
with server failures and IGP flaps?
itojun
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