From: "François-Xavier Le Bail" <fx.lebail@yahoo.com>
To: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
Cc: netdev@vger.kernel.org,
Hannes Frederic Sowa <hannes@stressinduktion.org>,
"David S. Miller" <davem@davemloft.net>,
James Morris <jmorris@namei.org>,
Hideaki Yoshifuji <yoshfuji@linux-ipv6.org>,
Patrick McHardy <kaber@trash.net>
Subject: Re: [PATCH net-next] IPv6: enable TCP to use an anycast address
Date: Sat, 11 Jan 2014 05:06:10 -0800 (PST) [thread overview]
Message-ID: <1389445570.24657.YahooMailBasic@web125502.mail.ne1.yahoo.com> (raw)
In-Reply-To: <CAMrnHh6pBYMLn+zsR2P_oo8KufJq7Dkjm-cSq2N2Hi638yrUog@mail.gmail.com>
On Sat, 1/11/14, Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> wrote:
> Hello!
> I am just curious: since when is TCP allowed to use anycast addresses?
As said in http://tools.ietf.org/html/draft-iab-anycast-arch-implications-12.html#section-2.1
(this informational draft is in RCF queue)
" No firm conclusion was reached regarding
use of TCP with anycasted services, but it was observed that
anycasting was useful for DNS, although it did introduce some new
complexities."
For this works, there is need for appropriate routing (BGP, ...).
Many DNS root-servers use TCP with anycast (IPv4 and IPV6).
see : http://tools.ietf.org/html/draft-jabley-dnsop-anycast-mapping-04#section-4
" L-Root service is provided using a single IPv4 address (199.7.83.42)
and a single IPv6 address (2001:500:3::42). It should be noted that
it is preferable to refer to the service using its DNS name (L.ROOT-
SERVERS.NET) rather than literal addresses, since addresses can
change from time to time."
François-Xavier Le Bail
next prev parent reply other threads:[~2014-01-11 13:06 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-11 12:07 [PATCH net-next] IPv6: enable TCP to use an anycast address Francois-Xavier Le Bail
2014-01-11 12:46 ` Alexey Kuznetsov
2014-01-11 13:06 ` François-Xavier Le Bail [this message]
2014-01-11 13:38 ` Alexey Kuznetsov
2014-01-11 14:16 ` François-Xavier Le Bail
2014-01-11 14:26 ` Hannes Frederic Sowa
2014-01-11 13:46 ` Christoph Paasch
-- strict thread matches above, loose matches on Subject: below --
2014-01-11 14:07 François-Xavier Le Bail
2014-01-12 14:53 François-Xavier Le Bail
2014-01-13 1:11 ` Hannes Frederic Sowa
2014-01-14 23:14 ` David Miller
2014-01-22 14:32 François-Xavier Le Bail
2014-01-22 21:11 ` Alexey Kuznetsov
2014-01-22 21:59 ` Hannes Frederic Sowa
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1389445570.24657.YahooMailBasic@web125502.mail.ne1.yahoo.com \
--to=fx.lebail@yahoo.com \
--cc=davem@davemloft.net \
--cc=hannes@stressinduktion.org \
--cc=jmorris@namei.org \
--cc=kaber@trash.net \
--cc=kuznet@ms2.inr.ac.ru \
--cc=netdev@vger.kernel.org \
--cc=yoshfuji@linux-ipv6.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).