nanog mailing list archives
Re: IPv4 Anycast?
From: Zhenkai Zhu <zhenkai () ucla edu>
Date: Wed, 22 Apr 2009 00:12:06 -0700
Ah, that's very possible. So I suppose the 90 prefixes with 3 origin ASes are due to the same reason..
Then there is basically no inter-As anycast besides the anycast prefix for DNS root, since I only noticed like 8 prefixes that are announced by more than 3 ASes..
---- --Zhenkai Nathan Ward wrote:
On 22/04/2009, at 6:53 PM, Zhenkai Zhu wrote:Hello NANOG, I noticed that more than 3K prefixes are with 2 Origin ASes.Are they the simplest cases of anycast? Or they are mainly due to misconfiguration?The third (and probably more likely) option is that the prefixes are advertised by two providers as the customer wants redundancy with their own IP space, but does not have a public ASN. Ie. the customer has a circuit and possibly a BGP feed to two different providers.-- Nathan Ward
Current thread:
- IPv4 Anycast? Zhenkai Zhu (Apr 21)
- Re: IPv4 Anycast? Nathan Ward (Apr 21)
- Re: IPv4 Anycast? Zhenkai Zhu (Apr 22)
- Re: IPv4 Anycast? kris foster (Apr 22)
- Re: IPv4 Anycast? Nathan Ward (Apr 22)
- Re: IPv4 Anycast? Jack Bates (Apr 22)
- RE: IPv4 Anycast? Fouant, Stefan (Apr 22)
- Re: IPv4 Anycast? Zhenkai Zhu (Apr 22)
- Re: IPv4 Anycast? Jack Bates (Apr 22)
- Re: IPv4 Anycast? Patrick W. Gilmore (Apr 22)
- Re: IPv4 Anycast? Kevin Loch (Apr 22)
- Re: IPv4 Anycast? Jeroen Massar (Apr 22)
- Re: IPv4 Anycast? Shin SHIRAHATA (Apr 22)
- Re: IPv4 Anycast? Zhenkai Zhu (Apr 22)
- Re: IPv4 Anycast? Nathan Ward (Apr 21)