The rest of the connectors linked to a port are external. Source OMG Systems Modeling Language (SysML) 1.6
Internal connectors to ports are the ones inside the ports owner (specifically, they are the ones that do not have a UML partwithPort on the connector end linked to the port, assuming NestedConnectorEnd is not applied to that end, or if NestedConnectorEnd Source OMG Systems Modeling Language (SysML) 1.6