Document..........: draft-ietf-sipcore-presence-scaling-requirements-02 Reviewer..........: Christian Vogt Review date.......: September 22, 2009 IESG Telechat date: September 24, 2009 Summary: This draft is basically ready for publication, but has nits that should be fixed before publication. This document describes requirements for SIP/SIMPLE optimizations, primarily to address scalability issues that have been observed for SIP/SIMPLE deployments. The document is well-written and concise, and it is basically ready for publication. Two comments, though, which the authors may want to consider: - It would be worth mentioning in the introduction of the document what the expected result of this document should be. Obviously, we are expecting (or hoping for) an improvement in the scalability of SIP/SIMPLE, but this should be made explicit. Also, do we have estimates of how much SIP/SIMPLE will improve? - The document only talks about "optimizations" to which the defined requirement should apply. How about other types of protocol enhancements, such as functional extensions? Wouldn't the defined requirements apply to those just as well?