Re: [dccp] revised sender RTT estimate draft-ietf-dccp-tfrc-rtt-option-00.txt

[Gerrit Renker]

Quo>>> * S3.3 "When the Send RTT Estimate FEATURE [sic, note added word] is 
disabled,
>>>    the sender MUST NOT send RTT Estimate options...."  Why not?  DCCP 
>>> receivers will
>>>    correctly ignore RTT Estimate options they do not understand.  And it 
>>> would seem
>>>    useful to take advantage of RTT Estimates whether or not they were 
>>> required.
>> The document follows RFC 4340, 15. We much prefer to give one unambiguous
>> specification that agrees with the existing standards.
>
> This choice isn't justified by RFC4340's "Forward Compatibility", and 
> seems a mistake.
>
It is justified by applying the suggestions made in that section. If you can
officially add what you have written in the preceding email as an erratum to
RFC 4340 we would be happy to use it. Otherwise we will not change it. Period.