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I'm working with a carrier company based on cellular links (GPRS) that uses PPP as connection method.
GPRS lins are very unstable, so they loose connection or have very poor link quality frequently. In this cases we use a router with an ADLS link as main link and GPRS as backup.
By now we use scripts to check network status from ethernet card (a combination with traceroute and ping very similar to mtr program) and if it is down router switches to GPRS.
Places where ADSL isn't available we use EDGE or GPRS as main link and other EDGE or GPRS from other company as backup, but isn't easy to detect when links fails.
Bonding driver could be extended to PPP links?
How could I do that?
What needs to be done?
Thanks a lot
Francisco, did you get this sorted out? I have the same requirement and are batteling to get the bonding on ppp0 to work. Would like to hear from you on this.