On Wed, 2022-07-06 at 15:14 +0200, Sven Schwermer via networkmanager- list wrote: > Hi, > > I have a device with cellular modem running a Linux-based OS with > ModemManager/NetworkManager used for the connectivity management. > Occasionally, the cellular connection breaks and it takes several > connection attempts until the connection can be established again. > Currently, we have autoconnect-retries=0 for our cellular connection > so > there are infinite retries. This, however, can cause significant > system > load if the ModemManager connect (dbus) calls fail immediately which > occasionally happens. > > As far as I understand, NetworkManager will attempt a new > autoconnection > attempt right away after the previous attempt failed. The only way of > slowing this down is to set autoconnect-retries=1 which will cause > NetworkManager to wait for 5 minutes between attempts. This wait > duration seems to be fixed. > > Is there a way to make NetworkManager perform a backoff (e.g. linear > or > exponential) between connection attempts? Are there any other ways to > guarantee that the cellular modem is "always connected" without > having > NetworkManager to loop like crazy when a (re-)connection attempt > fails? > > Thanks and best regards, > Sven
Hi what you say is correct. No, this is how it works. After autoconnect-retries, autoconnect gets blocked for 5 minutes. That is not configurable. Patch or suggestion for improvements welcome, however, it's not clear to me how to extend this so that it makes sense. Thomas _______________________________________________ networkmanager-list mailing list networkmanager-list@gnome.org https://mail.gnome.org/mailman/listinfo/networkmanager-list
