Hi Huaimo, Thanks a lot for your review of the document. Please find my answers inline tagged as [GF]. We will work on a new version soon.
Regards, Giuseppe From: Huaimo Chen [mailto:[email protected]] Sent: Friday, September 11, 2020 10:23 PM To: [email protected] Cc: [email protected] Subject: draft-chen-pce-pcep-ifit-00 Hi Authors, It is an interesting topic. I have the following comments after reading through the draft. 1) Section 3 defines IFIT capability TLV. Some details about the procedures related to it seems missing. For example, after a PCEP session between A and B is established, A sends B a PCEP message with IFIT Attributes TLVs only if B supports IFIT capability (i.e., A has received from B the IFIT capability TLV in the OPEN message). What happens if A receives a PCEP message with IFIT Attributes TLVs from B but B does not support IFIT capability? [GF]: Section 3 will be extended and we will include the 5 different capabilities for IOAM and Alternate Marking. In this way each capability can be advertised separately and, in addition, a node can selectively signal the particular capability that is not supported instead of the general IFIT flag. 2) Section 4 defines IFIT Attributes TLV and its sub-TLVs. It would be better to have some general procedures for handling the TLV. [GF]: Good point. I think the procedures of handling the TLV could be detailed in a following section that we can propose in the next revision. 3) For Section 5 "Example of operation", its title seems not fit well with its contents, which illustrates some procedures for handling PCEP messages with IFIT Attributes TLVs. There should be a section about Operations, which focuses on configurations of IFIT feature. [GF]: Agree, we can change the title of this section to "Procedure Considerations" and describe both PCEP message exchange and, as you suggest, the configurations of the IFIT features that enable data plane telemetry. For more details on the telemetry we can add the reference to the relevant documents for data plane. 4) Some nits: a) page 3, in the 5th paragraph, "is focused" should be "focuses". b) page 4, in the last paragraph, "TLVs" should be "TLV". c) page 5, in the first paragraph, "and and" should be "and". [GF]: Thanks, will do. Best Regards, Huaimo
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