How to issue an "ifup broadband" when this is logged

[Russ Westrem]

On Feb 15, 2017 5:39 PM, "Dan Williams" <dcbw at redhat.com> wrote:

On Wed, 2017-02-15 at 17:09 -0600, Russ Westrem wrote:
> On Feb 15, 2017 4:37 PM, "Dan Williams" <dcbw at redhat.com> wrote:
>
> On Wed, 2017-02-15 at 21:14 +0100, Aleksander Morgado wrote:
> > On Wed, Feb 15, 2017 at 9:00 PM, Russ Westrem
> > <lspwaterproofing at gmail.com> wrote:
> > > Is there anything in the modemmanager scripts that I could change
> > > to have it
> > > ignore the deregistered modem and stop it from removing it from
> > > the
> > > bearer.
> > > I have a feeling these deregistrations happen often but very
> > > quickly and
> > > maybe if ignored, everything might work.
> >
> > You mean you want to totally ignore the modem-reported de-
> > registration
> > notifications to see what happens? I'm not sure that is easily
> > decoupled from the logic; maybe you can try to avoid connecting the
> > "serving-system" signal in
> > common_setup_cleanup_unsolicited_registration_events() in
> > mm-broadband-modem-qmi.c.
>
> That shouldn't have any effect though, really?  MM's logic on bearer
> initiated disconnection just changes some state, but doesn't do
> anything material to the WDS client.  The WDS client and packet data
> handle are still there and haven't been cleaned up.  Whether you can
> actually use them for anything is another question.
>
> But Russ, I don't quite understand why you'd want to ignore the
> deregistration, unless it's just for testing.
>
> If it's not for testing, well, the network kicked you off, and your
> packet bearer is likely gone (since the network has released
> resources
> for it when it kicked you off), and the IP details are gone too.
> That's not the modem, that's the network.  The only thing you can
> really do is request a new bearer.
>
> Dan
>
>
>
> I'm not sure either.  I just dont get why it holds a connection for
> days on
> Ubuntu 16.04 in the exact same spot using ModemManager and it never
> looses
> a single ping but when I do it on any router, mbim/qmi/4.4 kernel/4.9
> kernel, it will last an hour and then drop the connection 10 times
> every
> hour after that.
>
> I will try your suggestion on requesting a new bearer but I don't
> know if
> that will solve my problem .   Also I'm just too new at all this to
> figure
> out how to make that script work for me on LEDE.

I thought your problem was that the bearer wasn't getting reconnected
automatically after it dropped?  The script I pasted should do that.

One more question; is this the exact same device that works well on
Ubuntu and drops on LEDE?  eg, the exact same card, not just the same
model of card but different cards.

Dan

It's the exact same.  I remove the usb from the ubuntu machine and plug it
into the router without moving anything or changing anything.
And it's a two part problem I guess.  The ubuntu will run days and never
drop a connection and still be on the same bearer.  I drop a connection
every 5 or 10 min on LEDE.  I've used powered usb hubs with no help.
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