Rabadan, J., Ed., Sathappan, S., Nagaraj, K., Miyake, M., and T. Matsuda, "Flush Mechanism for Customer MAC Addresses Based on Service Instance Identifier (I-SID) in Provider Backbone Bridging EVPN (PBB-EVPN)", RFC 9541, DOI 10.17487/RFC9541, March 2024, <https://www.rfc-editor.org/info/rfc9541>.