18 Advanced Segment Routing & SRv6 Interview Questions (2025) + Cheat-Sheet 🔥

Ace your SR & SRv6 interviews in 2025! 🚀 We cover 18 senior-level questions with clear decision frameworks, migration tips, protection design, and telemetry. Grab the free cheat-sheet below and follow along with timestamps. ⏱️ Chapters 00:00 Intro / why SR & SRv6 matter 00:25 Q1 – SR-MPLS vs SRv6 (trade-offs, when to pick each) 01:05 Q2 – SID taxonomy: Node/Anycast/Adj/BSID & SRv6 behaviors 01:45 Q3 – TI-LFA vs LFA/R-LFA (coverage & sub-50 ms protection) 02:20 Q4 – Micro-loop avoidance: ordered-FIB, inc-SPF, LFC 02:55 Q5 – SRv6 encapsulation: encap vs inline / insert 03:30 Q6 – Constraint-based paths: affinities, SRLG, objectives 04:05 Q7 – BGP-LS → SR-TE: controller / PCE workflow 04:35 Q8 – Multi-domain SR-TE: H-PCE, stitching, hierarchical policies 05:10 Q9 – uSID / CSID compression: why, how, migration 05:45 Q10 – Service chaining with SRv6 (End.DX, End.DT) 06:25 Q11 – QoS & ECMP with SID stacks (hashing, pinning, transparency) 06:55 Q12 – Performance measurement: SR-PM, IOAM & closed-loop selection 07:30 Q13 – RSVP-TE → SR-TE migration (coexistence & pitfalls) 08:05 Q14 – Security hardening for SRv6 (SRH filters, MSD, CP protection) 08:40 Q15 – OAM & fault isolation (SR ping/trace, S-BFD, path-segment) 09:15 Q16 – IGP design for SR (IS-IS vs OSPFv3, SID/MSD, overload) 09:50 Q17 – Design scenario: 2 regions + cloud edge 10:25 Q18 – Telemetry-driven ops & interview tips 10:55 Wrap-up & next steps 📌 Next Video Advanced QoS for IPv4/IPv6 WANs — Interview Scenarios (2025) 🎯 Who this is for Network engineers, architects, and SREs preparing for advanced interviews or planning SR/SRv6 deployments. 👍 Like, comment your toughest SR/SRv6 question, and *Subscribe* for weekly deep dives—powered by DeltaEdge Networks. #SegmentRouting #SRv6 #NetworkEngineer #BGP #PCE #TrafficEngineering #TI-LFA #SRPolicy #uSID #IOAM #SRPM #TheTechCult #DeltaEdge