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Comparison Between MTR and TBR
TBR (TOS Based Routing)
can’t exclude selectively link from a single TOS
unspecified TOS metrics defaults to the TOS 0 metric
“Unreachable” metric would have to be defined
inefficient if link participate in few topologies, where other topologies would have to be advertised as “Unreachable”
MTR
include only metrics for those topologies that are active on the link
PPT Version