The example embodiment provides a selected path meeting an acceptable integrity of the optical wavelengths to a path establishment module to establish {HEAD ~ the path} through {TAIL ~ the optical network} 
The example embodiment provides a selected path meeting an acceptable integrity of the optical wavelengths to a path establishment module to establish { HEAD ~ the path } through { TAIL ~ the optical network }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL