Contributors

This section preserves the RFC text for Unreachable Prefix Announcement (UPA), including IS-IS and OSPF signaling, U-Flag and UP-Flag semantics, propagation rules, IANA assignments, and security considerations.

Contributors

   The following people contributed to the content of this document and
   should be considered coauthors:

   Stephane Litkowski
   Email: slitkows@cisco.com


   Amit Dhamija
   Email: amitd@arrcus.com


   Gunter Van de Velde
   Email: gunter.van_de_velde@nokia.com


   The following people contributed to the problem statement and the
   solution requirement discussion:

   Aijun Wang
   Email: wangaj3@chinatelecom.cn


   Zhibo Hu
   Email: huzhibo@huawei.com