Newbie098542 Posted 18 Oct 2022 08:21
  
When OSPF has to select a backup path, it doesn’t just look for the “next best” lowest metric path but it uses a list of “tie breakers” to decide what path to use. This process is a bit similar to how BGP uses attributes. OSPF is able to use the following tie breakers:

    SRLG (Shared Risk Link Groups)
    Interface Protection
    Broadcast Interface Protection
    Node Protection
    Downstream Path
    Line-Card Disjoint Interfaces
    Metric

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