Auto-bandwidth for SR-TE#

Dmytro Shypovalov (Vegvisir Systems)

• Why: Bandwidth-aware SR-TE has been vendor-locked to date; this is an open-standard, multi-vendor prototype with an open-source component — the kind of adoptable tooling that matters for anyone running SR policies across a WAN or DC interconnect.
• What: A prototype auto-bandwidth solution for Segment Routing Traffic Engineering that is open-standard and multi-vendor (in contrast to existing vendor-specific mechanisms), plus an open-source "SR-TE bandwidth sampler" that collects SR policy counters via gNMI, calculates traffic rates, and converts them into BGP-LS format per RFC 9857. (from abstract only)
• How: Streaming telemetry of SR policy counters (gNMI) → traffic-rate computation → BGP-LS encoding per RFC 9857, so the SR-TE control plane or controller can resize policies from measured load without any vendor-proprietary signaling.
• Where applicable: Networks running SR policies — SP WANs and large DC-interconnect fabrics; requires gNMI-capable devices and BGP-LS support for the relevant encodings. It is explicitly a prototype, so expect a demo and roadmap rather than production tooling. Vegvisir Systems is a vendor in this space, but the open-source sampler lowers the pitch risk; evaluate the open components on their own merits.