Commit 69cf3c7591 for frr

commit 69cf3c75919dd03d0db3df73f36a57b6222505c8
Merge: 8d3f37687c 5e9cdab34c
Author: Russ White <russ@riw.us>
Date:   Tue Oct 27 07:24:50 2026 -0400

    Merge pull request #22385 from pguibert6WIND/isis_missing_router_id

    Implement RFC7981 Appendix A