A method 1, wherein {HEAD ~ the cost value} for a logical link is defined as {TAIL ~ the bandwidth} of the logical link times the delay in the logical link 
A method 1 , wherein { HEAD ~ the cost value } for a logical link is defined as { TAIL ~ the bandwidth } of the logical link times the delay in the logical link
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH