STP: Allow VTY configuration of M3UA ASP side
If we wanted to interconnect multiple osmo-stp (or even with other signalling gateways), we would need a way to use the ASP-side implementation of libosmo-sigtran from the VTY of OsmoSTP. This is currently not possible, but all related code should be there.
I am not sure. We never tried it or even thought about it. When I get it correct, this would be a configuration where e.g. two OsmoSTP are connecting to each other. This means that one of them must take the client role. The topology could be something like this:
osmo-bsc (ASP) <------> (STP) OsmoSTP (ASP) <------> (STP) OsmoSTP (STP) <------> (ASP) osmo-msc
I think this is something we have to test in order to be sure that it really works.