Hi,
Thank you for addressing the comments. It is also very convienient to have the new version and the "how comments are addressed" document.
I think it is pretty important to note that TTL values are not so much documented, so mayby something similar as the editor response below could be placed in the intro or in section 3.
"Editors’ Response: RFC 1033 has a section on TTLs, which we reference
toward the end. Based on my familiarity with the RFCs I do not expect
that we’ll find more any specific advice to DNS operators in general, nor
for the root zone in particular."
I agree with the responses.
My response to comments 11'response would be: I agree that the figure is clear, What I meant was a "formal" relation between TTL values woudl be helpful to implement a checkzone test to somehow validate the root zone. Here the comment 11:
11) section 6.4.1 Is there any reason the relation between the different Time is not expressed.
SOA_Expire + NS_TTL <= ZSK_validity
Editors’ Response: I’m not sure I understand the question. I think Figure 7 is clear.