A method and apparatus for increasing {HEAD ~ the capability} of {TAIL ~ a network topology model} having a plurality of nodes connected by existing links to maintain service continuity in the presence of faults 
A method and apparatus for increasing { HEAD ~ the capability } of { TAIL ~ a network topology model } having a plurality of nodes connected by existing links to maintain service continuity in the presence of faults
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH