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Document: draft-ietf-ippm-checksum-trailer-03




Reviewer: Dan Romascanu




Review Date: 10/22/15




IETF LC End Date: N/A




IESG Telechat date: N/A




 




Summary:




 




This document is ready for publication. I have a couple of minor issues that need clarification and can be solved easily by minor editing.





 




Major issues:




 




Minor issues:




 







1.

      


It is not clear to me how backwards compatibility is ensured. How do implementations make distinction between OWAMP or TWAMP packets that use timestamp update and Checksum Complement rather than timestamp update
 and UDP checksum update? Is a mix of senders/receivers (for OWAMP) or senders/reflectors (for TWAMP) that some support and some do not support Checksum Complement possible?








2.

      


The last paragraph in section 4 reads: ‘The concept described in this document is intended to be used only in unauthenticated or in authenticated mode.’ This seems either a mistake, or I did not understand what
 it means and some clarification is needed. 




 




Nits/editorial comments: