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