[193036] in North American Network Operators' Group
Re: Recent NTP pool traffic increase
daemon@ATHENA.MIT.EDU (joel jaeggli)
Thu Dec 15 20:41:23 2016
X-Original-To: nanog@nanog.org
To: Dan Drown <dan-nanog@drown.org>, nanog@nanog.org
From: joel jaeggli <joelja@bogus.com>
Date: Thu, 15 Dec 2016 15:13:12 -0800
In-Reply-To: <20161215170724.Horde.1ojbzMEfTPjWE1EnzitN_7e@mail.drown.org>
Errors-To: nanog-bounces@nanog.org
This is an OpenPGP/MIME signed message (RFC 4880 and 3156)
--5958gVlJIj3JLaV675MjesBDi3wnlgQDa
From: joel jaeggli <joelja@bogus.com>
To: Dan Drown <dan-nanog@drown.org>, nanog@nanog.org
Message-ID: <19e4ced8-3726-5746-94e9-e3b378f23102@bogus.com>
Subject: Re: Recent NTP pool traffic increase
References: <20161215170724.Horde.1ojbzMEfTPjWE1EnzitN_7e@mail.drown.org>
In-Reply-To: <20161215170724.Horde.1ojbzMEfTPjWE1EnzitN_7e@mail.drown.org>
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable
On 12/15/16 3:07 PM, Dan Drown wrote:
> Quoting Jose Gerardo Perales Soto <gerardo.perales@axtel.com.mx>:
>> We've recently experienced a traffic increase on the NTP queries to
>> NTP pool project (pool.ntp.org) servers. One theory is that some
>> service provider NTP infraestructure failed approximately 2 days ago
>> and traffic is now being redirected to servers belonging to the NTP
>> pool project.
>>
>> Does anyone from the service provider community have any comments?
>
> To add some more numbers to this, I'm seeing 4x the usual NTP traffic
> to my server in pool.ntp.org, starting Dec 13.
>
> Top source ASNs by % of NTP traffic seen by my server (I don't have
> pre-Dec 13 traffic by ASN handy)
>
> sprint 4.0%
> verizon-wireless 3.4%
> tmobile 2.9%
> att-wireless 2.8%
> comcast 2.1%
> orange 1.8%
> sky 1.6%
> twc 1.0%
> att 1.0%
> swisscom 0.9%
> saudinet 0.8%
> virgin 0.6%
> opaltelecom 0.5%
> qwest 0.5%
> eli 0.2%
> verizon 0.2%
>
> Possibly related is the new iOS release. Does the new iOS generate
> more NTP traffic? Can anyone measure that?
IOS uses time.appple.com which is widely available.
--5958gVlJIj3JLaV675MjesBDi3wnlgQDa
Content-Type: application/pgp-signature; name="signature.asc"
Content-Description: OpenPGP digital signature
Content-Disposition: attachment; filename="signature.asc"
-----BEGIN PGP SIGNATURE-----
Comment: GPGTools - http://gpgtools.org
iEYEARECAAYFAlhTI4kACgkQ8AA1q7Z/VrIfFgCfbDwv8384gGRXlqJW+zzpUF+S
eXIAnj5UpDG+Qm2SpYTxqG7q64xCxoRN
=CnYX
-----END PGP SIGNATURE-----
--5958gVlJIj3JLaV675MjesBDi3wnlgQDa--
