What network protocols are used to connect to the SWIFT network?

Question

I understand that SWIFT messages over the SWIFT network are used to exchange financial information between financial institutions.

What network protocols do banking applications use to connect to and send the messages on the SWIFT network?

Is it SWIFT Message over SOAP&HTTPS over TCP/IP? Is it SWIFT Messages in a file over SFTP over TCP/IP?

Answer 1

The messages themselves are just text, and can flow over various transports.

The SWIFT network itself is IP based (formerly X.25). However, most applications interact via some intermediary, e.g. SIL, that lets you talk MQ, files, or whatever.