[Question] Why is it called Out-of-band messaging?

[edwardttril]

It looks like the library is for 'virtual Erlang node'.
At a glance:

• spawn Erlang node if absent (if resource available(?)),
  • talk to one if present and do a sync & async rpc (sync)
  • 'relay' message along with new addressee and/or sender

Out of band is usually communication outside the logical data stream. E.g. signalling in telecom switch is done via a signalling plane ant not sharing logical resource with the data stream ).

Just wondering.

[Panagiotis PJ Papadomitsos]

It is out of band because it's not using the usual Erlang VM's channels for communication (the VM's remote spawn mechanism or rpc/rex)!

[edwardttril]

Thanks.
Oh you are referring to rpc and rex server.
I was thinking about something else.