{HEAD ~ The evaluation} is performed for traditional Open Shortest Path First recovery as well as {TAIL ~ Multiprotocol Label Switching} explicit routing based local recovery and end to end recovery 
{ HEAD ~ The evaluation } is performed for traditional Open Shortest Path First recovery as well as { TAIL ~ Multiprotocol Label Switching } explicit routing based local recovery and end to end recovery
HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH