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. This draft specifies a Spanning Tree Protocol (STP) application for the Inter-Chassis Communication Protocol (ICCP). The security considerations section does exist and refers to the base ICCP specification, RFC 7275, for applicability. 7275 lists the security constraints and limitations sufficiently when considering the reviewed draft. The section goes on to describe potential DoS attacks as described in 7275 and provides a single example to mitigate such an attack. Even though this coverage is fairly sparse, 7275 outlines a more comprehensive list of thwarting potential threats. General comments: None. Editorial comments: PE, PW, AC, CE, and LDP are never expanded. s/need be active/need to be active/ s/such system/such systems/ s/that support ICCP/that supports ICCP/ s/on CE or PE/on the CE or PE/ s/attack on channel/attack on a channel/ s/careful attack on channel/a careful attack on a channel/ Shawn. --