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 ust like any other last call comments. This ID is Standards Track, is about the link-layer addressing of Ethernet frames carrying MPLS-TP packets. The document is short and ok and the Security Consideration section does discuss the potential issues sufficiently. I have no further comments. Best regards, Tobias