IPv4 Anycast?

Wed Apr 22 21:23:23 UTC 2009

Patrick W. Gilmore wrote:
> On Apr 22, 2009, at 4:35 PM, Jack Bates wrote:
>> Zhenkai Zhu wrote:
>>> I just want to make sure if I understand correctly. You mean that the 
>>> anycasted address space can be announced in different places yet with 
>>> the same origin AS?
>>
>> Yes, and it is commonly done.
> 
> I was under the impression anycast services with homogeneous origin AS 
> was far more common than the heterogeneous.  Almost all the instances I 
> know of use homogeneous origin AS.
> 
> I'd be interested in statistics either way.

192.88.99.0/24, 2002::/16, and 2001::/32 are some
notable examples of heterogeneous origin AS.

- Kevin