Hi everyone,

I see that current work to support multi SIM goes from lower layers to upper 
layers covering the main SIM features, but at a low level I don't see how can 
be mapped each SIM with a data connection.

For example, the network stats service obtains data usage values by checking 
the amount of data transmited per each network interface, the network manager 
notifies the network stats service when a network interface is registered and 
gives information about the kind of connection (mobile or wifi). With multi SIM 
we can have more than one mobile connection, so I can't figure how to map 
different mobile connections to a diferent SIMs.

After looking the new RIL multi SIM architecture with multiples 
MSimInterfaceLayers I assume that each SIM will have a different network 
interface assigned: rmnet0, rmnet1 and so on. Am I wrong?

If each SIM can be related with one network interface, at least when two SIMs 
can work at the same time, how can be related the iccInfo object with the 
underlying network interface?

I think that it will also affect to tethering functionality, because the user 
will want to be able to configure which SIM card exposes the shared connection.

Regards,
Albert

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