handle transport failures in tests
handle transport failures in tests

Change-Id: I35db2f3126117e357c358fdbea866c4000f9203c
Signed-off-by: Alessandro Salvatori <8a0c874bf01335702b42d6983c4d9b3eb550c634@gmail.com>

opendaylight/opflex,mhrobinson/opflex,mhrobinson/opflex,opendaylight/opflex,opendaylight/opflex,mhrobinson/opflex,opendaylight/opflex,mhrobinson/opflex