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Ask questions and share experiences about ACX Series, CTP Series, MX Series, PTX Series, SSR Series, JRR Series, and all things routing, including portfolios and protocols.
  • 1.  OSPF Link protection example

    Posted 02-23-2024 01:09

    Hi everyone,

    I am looking for an example  for OSPF link protection ( no MPLS),  any good recommendation ?

    I have been finding MPLS based link protection material but not so great stuff on just OSPF link protection.


    Be kind!!

  • 2.  RE: OSPF Link protection example
    Best Answer

    Posted 02-23-2024 02:04


    Link-protection is considered as part of LFA (Loop-free alternate), which is available both for OSPF and IS-IS.

    For OSPF, check the link below -

    Very important detail - "When you configure link protection for OSPF, you must also configure a per-packet load-balancing routing policy to ensure that the routing protocol process installs all the next hops for a given route in the routing table." 

    If you don't configure load-balancing policy, link-protection will not "protect" the network in case of link failure.