Add error logging when reading data from listener
Add error logging when reading data from listener

I think that interface on target machine is flopping, e.g
unexpectedly changes its state from up to down.
Added logging to verify such behaviour and in case if that is
true we will see similar message:
  tcpdump: eth2: That device is not up

Change-Id: I11a46c5281a7863106a2b40018fe43e31095f564
Related-Bug: 1425090

SmartInfrastructures/fuel-web-dev,huntxu/fuel-web,eayunstack/fuel-web,nebril/fuel-web,huntxu/fuel-web,prmtl/fuel-web,SmartInfrastructures/fuel-web-dev,huntxu/fuel-web,prmtl/fuel-web,stackforge/fuel-web,prmtl/fuel-web,nebril/fuel-web,huntxu/fuel-web,eayunstack/fuel-web,zhaochao/fuel-web,SmartInfrastructures/fuel-web-dev,zhaochao/fuel-web,huntxu/fuel-web,eayunstack/fuel-web,stackforge/fuel-web,zhaochao/fuel-web,eayunstack/fuel-web,eayunstack/fuel-web,prmtl/fuel-web,nebril/fuel-web,nebril/fuel-web,zhaochao/fuel-web,prmtl/fuel-web,zhaochao/fuel-web,SmartInfrastructures/fuel-web-dev,nebril/fuel-web,stackforge/fuel-web,SmartInfrastructures/fuel-web-dev