use link object for testing connection instead of splitting into stps
use link object for testing connection instead of splitting into stps

jeroenh/OpenNSA,NORDUnet/opennsa,jab1982/opennsa,NORDUnet/opennsa,jab1982/opennsa,jeroenh/OpenNSA,jeroenh/OpenNSA,NORDUnet/opennsa