https://docs.ipinfusion.com/service-provider/index.html#page/OcNOS-SP/Layer3-Config/OSPFv2_LDP_RLFA.html
Segement Routing TI-LFA or Topology-Independant Loop-Free Alternate - FRR in SR
| IS-IS Ipv4 LFA | 6.4 not supported |
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| https://docs.ipinfusion.com/service-provider/index.html#page/OcNOS-SP/Layer3-Config/IS-IS-IPv4_Configurations.html#ww1088198 |
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| RFC 8102 |
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| - Challenge with current LFA: Traditional LFA calculations only ensure protection against link failures, not necessarily failures of entire routing nodes.
- Proposed extension: RFC 8102 introduces methods to determine if a chosen PQ-node (next hop in the remote LFA path) offers protection for a specific destination in case of a node failure.
- Benefit: This extension allows for a more comprehensive evaluation of alternate paths. Network operators can leverage this information to make informed decisions based on defined policies, potentially eliminating paths that don't meet their requirements.
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