Forgot one small nit in Section 9.1: > This document updates RFC 3448 to incorporate TCP's higher initial > sending rates from RFC 3390. This document also updates RFC 3448 to > allow RFC 4243's use of a coarse-grained timestamp on data packets > instead of a more fine-grained timestamp. Rephrase not to use "updates", because this document actually obsoletes RFC 3448, and "updates" is a term that has a different meaning when applied to RFCs. Lars