sam 0c91cad55f docs: add router-integration guide + router-blueprints/ fragments
The stack side is portable; the router side had no reference material -- a
new operator standing up OBMP has no guide for what to configure on their
devices to feed it. Adds two artifacts, both vendor-neutral in intent,
IOS-XR-specific in syntax:

  docs/router-integration.md
    Multi-path tour of the four ingest paths (BMP, BGP-LS, gNMI,
    NETCONF) with a bring-up checklist and cross-references. The BMP
    section is deliberately thin -- it hands off to docs/router-bmp-config.md
    for the address-selection, port-choice, and RR-scope activation
    detail already covered there.

  router-blueprints/iosxr/*.cfg
    Copy-paste config fragments, one per ingest path plus a
    role-route-reflector overlay. All values are <PLACEHOLDER>
    substitutions -- no hardcoded IPs, no lab-gear names. Fragments
    align to the ROUTER_FACING_IP / ROUTER_FACING_PORT convention
    introduced in docs/router-bmp-config.md.

  router-blueprints/README.md
    Substitution legend + layout, cross-links to PORTABILITY-FINDINGS.md
    finding 4 (why routers can't target HOST_IP on WSL).

Also appends the multi-path guide link to the Greenfield deploy section
in README.md so router-side integration is discoverable from the top.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-07-20 16:31:06 -07:00
..