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Re: ipv6 anycast

To: swmike@swm.pp.se
Subject: Re: ipv6 anycast
From: sthaug@nethelp.no
Date: Wed, 01 Sep 2010 11:58:24 +0200 (CEST)
Cc: randy@psg.com, v6ops@ops.ietf.org
In-reply-to: <alpine.DEB.1.10.1009010918170.13746@uplift.swm.pp.se>
References: <m2fwxuyn26.wl%randy@psg.com> <alpine.DEB.1.10.1009010918170.13746@uplift.swm.pp.se>

> > anyone have pointers to production operational use of ipv6 anycast on
> > the real interwebz?
> 
> I've been confused before, so I just have to ask. Do you mean the BGP kind 
> of Anycast, or the IPv6 Anycast spoken about in here: 
> http://www.iana.org/assignments/ipv6-anycast-addresses/ ?
> 
> I think it's very unfortunate that there are two concepts sharing the 
> same name. I saw someone asking on a Linux list about this, and before 
> everybody figured out what he wanted there was some confusion...

It is indeed extremely unfortunate. Especially so since IPv4 anycast is
widely used, and exactly the same technical solution works just fine for
IPv6 also. The so called "IPv6 anycast" as defined in the IPv6 protocol
standards has, as far as we know, zero usage.

Steinar Haug, Nethelp consulting, sthaug@nethelp.no

References:
- ipv6 anycast
  - From: Randy Bush <randy@psg.com>
- Re: ipv6 anycast
  - From: Mikael Abrahamsson <swmike@swm.pp.se>

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