AW: Problems with Sierra MC 8790V and wrong primary port

[Gerald Richter - ECOS <richter ecos de>]

> ... 
> On a side note, a user just reported an issue with a MC8790V (see the trailing
> 'V' there), log attached. In this case, the issue is not about using the APP1
> port for PPP; the issue is that there is no non-APP port shown, so we don't
> specify any port being 'primary', and we end up choosing an incorrect one.
>
> So, with:
>
> ttyUSB3 --> APP1
> ttyUSB4 --> APP2
> ttyUSB5 --> APP3
>
> We end up getting:
>
> tty/ttyUSB4 primary
> tty/ttyUSB3 secondary
> tty/ttyUSB4 data
>
> And ttyUSB4 doesn't like being the primary port here. Possibly ttyUSB3
> should be the one treated as primary?

Before we started to use network-manager we used a self made script (which only supports the ppp interface) 
and if I remember correctly, we always used the lowest ttyUSB Port as primary in case there was no other 
setup known for a card. This had worked for us very well.

Gerald