[155499] in North American Network Operators' Group

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Re: IPV6 Anycast for streaming

daemon@ATHENA.MIT.EDU (Oliver)
Mon Aug 13 10:16:44 2012

From: Oliver <olipro@8.c.9.b.0.7.4.0.1.0.0.2.ip6.arpa>
To: nanog@nanog.org
Date: Mon, 13 Aug 2012 18:14:37 +0200
In-Reply-To: <CAL9jLaZRjqhewY3UANQF=D=pvCSggtmoL7NfMneLk0_NqrhKyw@mail.gmail.com>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org

On Sunday 12 August 2012 13:09:56 Christopher Morrow wrote:
> anycast can take many forms, including anycast inside a single ASN
> which to the outside world looks like a single announcement (or even
> an announcement covered by an aggregate) - 4.2.2.2 falls into that
> sort of deployment, I believe.

Level3 are the origin AS for 4.2.2.2 - they're obviously not singlehomed so 
this isn't a suitable comparison.

In any case, the purpose of my statement was to draw a line between Anycast to 
an AS you're singlehomed on vs. Anycast when multihomed - in the latter case 
you may wish to do more work to ensure desirable bestpath selection, I wasn't 
trying to state nor imply that Anycast when single-homed doesn't count as 
Anycast.

Regards,
Oliver


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