I have reviewed this document as part of the security directorate's ongoing effort to review all IETF documents being processed by the IESG. These comments were written primarily for the benefit of the security area directors. Document editors and WG chairs should treat these comments just like any other last call comments. I'm sorry this review is a few weeks late -- I hope it is still useful. The summary of the review is ready. RFC8655 describes Deterministic Networking (DetNet) Architecture. The document under review covers a specific aspect of DetNet: the packet ordering function. From the document abstract, The Packet Ordering Function (POF) algorithm described herein enables to restore the correct packet order when replication and elimination functions are used in DetNet networks. Here is the security considerations section in its entirety: PREOF related security considerations (including POF) are described in section 3.3 of [RFC9055]. There are no additional POF related security considerations originating from this document. I believe that RFC9055 (Deterministic Networking (DetNet) Security Considerations) does indeed cover all relevant security considerations. I see no security issues with this draft.