Disconnect on modem-no-carrier repeated every 60 seconds

2021-08-31 Thread Duane Murphy
We are seeing an installation where we the connection is disconnected every 60 seconds due to state change: activated -> failed (reason 'modem-no-carrier', sys-iface-state: 'managed')I have included an excerpt of one of the 60 second transitions from failed back to failed. What would cause the conn

Re: grab_port fails for AT/PPP port (stuck) in data mode

2021-08-31 Thread Norbert van Bolhuis
Hi Aleksander, On 8/31/21 9:58 AM, Aleksander Morgado wrote: Hey Norbert, I'm creating a plugin for Sierra Wireless HL78xx LTE-M modem. Actually, it is already partly done. The HL78xx has its own TCP/TLS stack/interface. To use it as "generic linux network interface" though, PPP is used for

Re: grab_port fails for AT/PPP port (stuck) in data mode

2021-08-31 Thread Aleksander Morgado
Hey Norbert, > >> I'm creating a plugin for Sierra Wireless HL78xx LTE-M modem. > >> Actually, it is already partly done. > >> > >> The HL78xx has its own TCP/TLS stack/interface. To use it as > >> "generic linux network interface" though, PPP is used for the AT/PPP > >> capable > >> ttyACM1 port

Re: grab_port fails for AT/PPP port (stuck) in data mode

2021-08-31 Thread Aleksander Morgado
Hey Norbert, > I'm creating a plugin for Sierra Wireless HL78xx LTE-M modem. > Actually, it is already partly done. > > The HL78xx has its own TCP/TLS stack/interface. To use it as > "generic linux network interface" though, PPP is used for the AT/PPP capable > ttyACM1 port. ttyACM0 is the AT cont

grab_port fails for AT/PPP port (stuck) in data mode

2021-08-31 Thread Norbert van Bolhuis
Hi, I'm creating a plugin for Sierra Wireless HL78xx LTE-M modem. Actually, it is already partly done. The HL78xx has its own TCP/TLS stack/interface. To use it as "generic linux network interface" though, PPP is used for the AT/PPP capable ttyACM1 port. ttyACM0 is the AT control port. Note: I'