From: Daniel Borkmann <dborkman@redhat.com>
To: David Laight <David.Laight@ACULAB.COM>
Cc: "netdev@vger.kernel.org" <netdev@vger.kernel.org>, dcbw@redhat.com
Subject: Re: Does NetworkManager kill IPv6 connections?
Date: Thu, 04 Sep 2014 19:43:45 +0200 [thread overview]
Message-ID: <5408A4D1.9050606@redhat.com> (raw)
In-Reply-To: <063D6719AE5E284EB5DD2968C1650D6D174876CB@AcuExch.aculab.com>
[ Cc'ing Dan ]
On 09/04/2014 04:47 PM, David Laight wrote:
> I was running a overnight test that failed because an (almost idle) IPv6 connection
> unexpectedly disconnected.
> 30 seconds before the disconnect syslog contains (retyped):
> NetworkManager[pid]: <info> policy set 'Wired connection 2' (eth0) as default for IPv6 routing and DNS.
> The same message appeared exactly 70 minutes earlier - with no ill effect.
> A second connection between the same pair if addresses (carrying a lot of traffic)
> was unaffected.
>
> Any idea what/why NetworkManager is doing?
> (Yes I know it is userspace, but it seems to be breaking the kernel....)
>
> The system is an ubuntu 13.04 desktop (3.8.0-19 kernel), that recent, but
> newer than the ones a lot of our customers use.
>
> I can rerun the test, but don't know what to look for.
> 'eth0' is the only ethernet interface in the system that is actually
> connected to a network.
>
> Some indications of where to look would be appreciated.
>
> David
next prev parent reply other threads:[~2014-09-04 17:43 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-04 14:47 Does NetworkManager kill IPv6 connections? David Laight
2014-09-04 17:43 ` Daniel Borkmann [this message]
2014-09-04 18:17 ` Dan Williams
2014-09-05 14:18 ` David Laight
2014-09-05 18:42 ` Dan Williams
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