[127317] in North American Network Operators' Group
Re: Micro-allocation needed?
daemon@ATHENA.MIT.EDU (Joe Abley)
Mon Jun 21 17:58:01 2010
From: Joe Abley <jabley@hopcount.ca>
In-Reply-To: <7F25AC8D-1330-41B1-815F-FEABD2EC6FA4@develooper.com>
Date: Mon, 21 Jun 2010 17:55:40 -0400
To: =?iso-8859-1?Q?Ask_Bj=F8rn_Hansen?= <ask@develooper.com>
X-SA-Exim-Mail-From: jabley@hopcount.ca
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On 2010-06-21, at 17:42, Ask Bj=F8rn Hansen wrote:
> Are there (a significant number of) providers that will filter a /24 =
announcement from an ARIN prefix not in the list of prefixes where they =
allocate /24 blocks.
Not in my experience, but I don't know how useful that is to know =
because I don't know how to characterise my experience in any meaningful =
way :-)
> (I take it from what you wrote that the answer is "No").
I'm interested in the idea of anycasting one of the pool.ntp.org =
herd-members. Every time I've suggested such a thing I've been told =
(paraphrasing) that a good (server, client) NTP session exhibits =
reasonable RTT stability, this constitutes, in effect, a long-lived =
transaction, and hence anycast is not a good answer unless you have =
confidence that the potential for oscillations is low, or that the =
frequency of the oscillations is very low (i.e. in a private network =
this might be a good answer, but across the public Internet it's a poor =
answer).
Has the thinking changed, or did I just misunderstand?
Joe=
