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