'_' is not a valid character.
S1AP specs say:
ENBname ::= PrintableString (SIZE (1..150,...))
And X.680 (08/2015) 41.4 table 10 lists the valid characters for
PrintableString. '_' is not there. We replace by '-' which is there.
Connection of eNB to ppenair-cn has not been tested. There is no reason
why it would fail.
Cedric Roux
11fe5f97c7