Is there a way to enforce the usage of the TLS protocol globally in Apigee EDGE?

[akashtp]

There is no configuration setting to optionally override the TLS version for those targets that do not specify any other TLS version.

The only option is to set "-Dhttps.protocols=TLSv1.2" (for TLS v1.2) in the system.properties file. This will set up the protocol as TLSv1.2 for the MessageProcessor process itself and all target endpoints will stick to protocol TLSv1.2.