MPTE update#

Dr Kireeti Kompella (HPE Networking)

• Why: Kompella is one of the principal authors of the MPLS and segment-routing protocol family, and "MPTE" refers to the emerging multi-path traffic engineering work (the successor direction to per-flow SR-TE and PRECISION-style path steering) being pursued in the IETF SPRING/RTGWG space. DC/WAN interconnect and TE internals are core to this PM. An "update" from the author himself is a first-hand read on where large-scale path steering is heading — worth the slot even with no abstract.
• What: A progress report on the MPTE architecture — steering traffic across multiple paths with fine granularity, aimed at fixing what per-destination ECMP and heavy per-flow TE can't do well (program text and speaker metadata only; the MPTE.pptx deck exists but was not readable here).
• How: Presumably the MPTE label/segment approach: encoding per-path/per-flow steering state compactly so a single tunnel can carry many flows with independent placement, without per-flow session state in the core.
• Where applicable: Operators with SR-MPLS or SRv6 underlays, or building DC-to-WAN fabrics that need granular steering (elephant/mice separation, non-minimal path routing, loss-aware placement). Vendor-neutral in intent (it is IETF-track work presented by a long-time individual contributor), but expect it to reflect HPE's implementation timeline.