[CentOS] How to make a network interface come up automatically on link up?

NM_MANAGED=no on ifcfg-ethX script.. and onboot=YES
On Mar 24, 2013 9:04 AM, "Joakim Ziegler" <joakim at terminalmx.com> wrote:

> How do I do that? I've not used network manager to set it up, I just
> made the ifcfg-eth2 file from scratch.
>
> --
> Joakim Ziegler  -  Supervisor de postproducción  -  Terminal
> joakim at terminalmx.com   -   044 55 2971 8514   -   5264 0864
>
> On 24/03/13 0:46, Eero Volotinen wrote:
> > Try to disable network manager on that interface
> > On Mar 24, 2013 7:17 AM, "Joakim Ziegler" <joakim at terminalmx.com> wrote:
> >
> >> I do have ONBOOT=yes, yes. It comes up on boot (if there's a link), it
> >> just doesn't come up after the link goes down and comes back up.
> >>
> >> --
> >> Joakim Ziegler  -  Supervisor de postproducción  -  Terminal
> >> joakim at terminalmx.com   -   044 55 2971 8514   -   5264 0864
> >>
> >> On 23/03/13 21:13, Earl Ramirez wrote:
> >>> On Sat, 2013-03-23 at 20:27 -0600, Joakim Ziegler wrote:
> >>>> I have a recently installed Mellanox VPI interface in my server. This
> is
> >>>> an InfiniBand interface, which, through the use of adapters, can also
> do
> >>>> 10GbE over fiber. I have one of the adapter's two ports configured for
> >>>> 10GbE in this way, with a point to point link to a Mac workstation
> with
> >>>> a Myricom 10GbE card.
> >>>>
> >>>> I've configured this interface on the Linux box (eth2) using
> >>>> /etc/sysconfig/network-scripts/ifcfg-eth2 , setting its IP address,
> MTU,
> >>>> subnet, etc.
> >>>>
> >>>> Everything seems to work fine, with a single exception. If I reboot
> the
> >>>> Mac on the other end, causing the link state of the fiber interface to
> >>>> bounce, the network interface on the Linux box doesn't come back up
> when
> >>>> the link comes back up. That is, ifconfig shows it as having the link
> >>>> up, but it doesn't do the equivalent of "ifup eth2" when the link
> comes
> >>>> back, so it doesn't get an IP, the routing table doesn't get updated,
> >> etc.
> >>>>
> >>>> So, my question is, how can I make CentOS automatically configure this
> >>>> interface when the link comes back up? It's a bit annoying having to
> log
> >>>> in and do ifup eth2 every time...
> >>>>
> >>>
> >>> Joakim,
> >>>
> >>> Do you have ONBOOT=yes in the
> /etc/sysconfig/network-scripts/ifcfg-eth2?
> >>>
> >>>
> >>>
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