Dan, Please let us know how your contact information should be updated. The document currently contains the entry below, but mail sent to <daniel.vo...@bell.ca> failed (Address not found).
Daniel Voyer Bell Canada Email: daniel.vo...@bell.ca Thank you, RFC Editor/sg > On Apr 21, 2025, at 2:19 PM, Sandy Ginoza <sgin...@staff.rfc-editor.org> > wrote: > > Hi Rakesh, > > Thank you for your review and reply. We have updated the document based on > your replies below. For item 9, we are having trouble parsing the text: > >> <RG> How about following? >> >> In one-way measurement mode defined in Section 2.4 of [RFC6374], the >> querier can receive response messages with an IP/UDP >> header “out-of-band” by properly setting the UDP Return Object (URO) TLV >> in the >> query message. > > We wonder if the following correctly conveys the intended meaning? > > In one-way measurement mode defined in Section 2.4 of [RFC6374], the > querier can receive a response to an Out-of-band Response Requested > message by properly setting the UDP Return Object (URO) TLV > in the IP/UDP header. > > > Please review the updated files here: > https://www.rfc-editor.org/authors/rfc9779.xml > https://www.rfc-editor.org/authors/rfc9779.txt > https://www.rfc-editor.org/authors/rfc9779.pdf > https://www.rfc-editor.org/authors/rfc9779.html > > AUTH48 diffs (highlight only the changes noted below): > https://www.rfc-editor.org/authors/rfc9779-auth48diff.html > https://www.rfc-editor.org/authors/rfc9779-auth48rfcdiff.html (side by side) > > Comprehensive diffs: > https://www.rfc-editor.org/authors/rfc9779-diff.html > https://www.rfc-editor.org/authors/rfc9779-rfcdiff.html (side by side) > > Please review and let us know if additional updates are needed or if you > approve the RFC for publication. > > Thank you, > RFC Editor/sg > > > >> On Apr 16, 2025, at 8:01 PM, Rakesh Gandhi (rgandhi) >> <rgandhi=40cisco....@dmarc.ietf.org> wrote: >> >> Hello Editor, >> >> Thank you for the great updates to the document. >> >> Note: I am adding new email IDs for Dan Voyer. Dan, please reply with your >> preference on how you would like to update your information in the RFC-to-be. >> >> Please see replies inline with <RG>… >> >> >> From: rfc-edi...@rfc-editor.org <rfc-edi...@rfc-editor.org> >> Date: Wednesday, April 16, 2025 at 7:00 PM >> To: Rakesh Gandhi (rgandhi) <rgan...@cisco.com>, Clarence Filsfils >> (cfilsfil) <cfils...@cisco.com>, daniel.vo...@bell.ca >> <daniel.vo...@bell.ca>, stefano.sals...@uniroma2.it >> <stefano.sals...@uniroma2.it>, mach.c...@huawei.com <mach.c...@huawei.com> >> Cc: rfc-edi...@rfc-editor.org <rfc-edi...@rfc-editor.org>, mpls-...@ietf.org >> <mpls-...@ietf.org>, mpls-cha...@ietf.org <mpls-cha...@ietf.org>, >> tony...@tony.li<tony...@tony.li>, james.n.guich...@futurewei.com >> <james.n.guich...@futurewei.com>, auth48archive@rfc-editor.org >> <auth48archive@rfc-editor.org> >> Subject: Re: AUTH48: RFC-to-be 9779 <draft-ietf-mpls-rfc6374-sr-17> for your >> review >> >> Authors, >> >> While reviewing this document during AUTH48, please resolve (as necessary) >> the following questions, which are also in the XML file. >> >> 1) <!-- [rfced] May we update the document title as shown below for >> clarity? >> >> Original: >> Performance Measurement for Segment Routing Networks with MPLS Data >> Plane >> >> Perhaps: >> Performance Measurement for Segment Routing Networks over the MPLS Data >> Plane >> >> --> >> >> <RG> We could use following example as a guidance? >> >> RFC 8660 uses term: Segment Routing with the MPLS Data Plane >> >> https://datatracker.ietf.org/doc/html/rfc8660 >> >> <RG> Performance Measurement for Segment Routing Networks with the MPLS Data >> Plane >> >> >> 2) <!-- [rfced] Please insert any keywords (beyond those that appear in >> the title) for use on https://www.rfc-editor.org/search. --> >> >> >> <RG> Delay Measurement, Loss Measurement, Link Measurement, SR-MPLS Policy >> Measurement >> >> >> 3) <!-- [rfced] We have updated the text below for readability and to >> clarify the relationship between SR-MPLS and its expansion. Please review >> and let us know any objections. >> >> Original: >> This document specifies the application of the MPLS loss and delay >> measurement techniques, originally defined in RFC 6374, RFC 7876, and >> RFC 9341 within Segment Routing (SR) networks that utilize the MPLS >> data plane (SR-MPLS). >> >> Current: >> This document specifies the application of the MPLS loss and delay >> measurement techniques (originally defined in RFCs 6374, 7876, and 9341) >> within Segment Routing (SR) networks that utilize the MPLS data plane, >> also referred to as Segment Routing over MPLS (SR-MPLS). >> >> --> >> >> <RG> Ok. >> >> >> 4) <!-- [rfced] We have updated the text below to demonstrate a 1:1 >> relationship between abbreviation and expansion. Please review. >> >> Original: >> >> Segment Routing (SR), as specified in [RFC8402], leverages the source >> routing paradigm and applies to both the Multiprotocol Label >> Switching (SR-MPLS) and IPv6 (SRv6) data planes. >> >> Current: >> >> Segment Routing (SR), as specified in [RFC8402], leverages the source >> routing paradigm and applies to both the Multiprotocol Label >> Switching (MPLS) and Internet Protocol version 6 (IPv6) data planes. >> These are referred to as Segment Routing over MPLS (SR-MPLS) and >> Segment Routing over IPv6 (SRv6), respectively. >> >> --> >> <RG> Ok. >> >> >> 5) <!-- [rfced] For clarity, please consider whether the following >> suggested update conveys the intended meaning. >> >> Original: >> This document defines Return Path and Block Number TLV extensions for >> [RFC6374], in Section 6, for delay and loss measurement in SR-MPLS >> networks. >> >> Current: >> This document extends [RFC6374] by defining Return Path and Block >> Number TLVs (see Section 6) for delay and loss measurement in >> SR-MPLS networks. >> --> >> <RG> Ok. >> >> 6) <!-- [rfced] Does "also apply" mean "can also be used"? >> >> Original: >> These TLV extensions also apply to MPLS Label Switched >> Paths (LSPs) [RFC3031]. >> >> Perhaps: >> These TLVs can also be used in MPLS Label Switched >> Paths (LSPs) [RFC3031]. >> --> >> <RG> Ok >> >> 7) <!-- [rfced] Seemingly, Success (0x1) is a Control Code. If this is >> correct, may we udpate the text as follows? >> >> Original: >> The responder that supports this TLV MUST return >> Success in "Control Code" [RFC6374] if it is the intended destination >> for the query. >> >> Perhaps: >> The responder that supports this TLV MUST return >> Control Code 0x1 (Success) [RFC6374] if it is the intended destination >> for the query. >> --> >> >> <RG> Ok >> >> >> 8) <!-- [rfced] Could the text below be adjusted for clarity? Specifically, >> what is being sent as "the destination address"? >> >> Original: >> When the querier sets an IP address and a UDP port in the URO TLV, the >> response message MUST be sent to that IP address as the destination address >> and UDP port as the destination port. >> >> Perhaps: >> When the querier sets an IP address and a UDP port in the URO TLV, the >> response message MUST be sent to that IP address, with that IP address as >> the destination address and the UDP port as the destination port. >> --> >> <RG> Ok >> >> >> >> 9) <!-- [rfced] May we update "out-of-band response messages" to >> "Out-of-Band Response Requested messages..."? It is unclear whether the >> text refers to the Response Requested messages or res ponses to Out-of-Band >> Response Requested messages. >> >> Original: >> In one-way measurement mode defined in Section 2.4 of [RFC6374], the >> querier can receive "out-of-band" response messages with an IP/UDP >> header by properly setting the UDP Return Object (URO) TLV in the >> query message. >> --> >> <RG> How about following? >> >> In one-way measurement mode defined in Section 2.4 of [RFC6374], the >> querier can receive response messages with an IP/UDP >> header “out-of-band” by properly setting the UDP Return Object (URO) TLV >> in the >> query message. >> >> >> 10) <!-- [rfced] How may we update the text below for clarity and >> readability? >> >> Original: >> In two-way measurement mode defined in Section 2.4 of [RFC6374], the >> response messages SHOULD be sent back in-band on the same link or the >> same end-to-end SR-MPLS path (same set of links and nodes) in the >> reverse direction to the querier, in order to perform accurate two- >> way delay measurement. >> >> Perhaps: >> In the two-way measurement mode defined in Section 2.4 of [RFC6374], >> the response messages SHOULD be sent back one of two ways: either >> they are sent back in-band on the same link, or they are sent back >> on the same end-to-end SR-MPLS path (i.e., the same set of links and >> nodes) in the reverse direction to the querier. This is done in order >> to perform accurate two-way delay measurement. >> >> --> >> <RG> Ok. >> >> >> >> 11) <!-- [rfced] For readability, we suggest the update below. Please >> review to ensure it does not impact the intended meaning. >> >> Original: >> The querier can request in the query message for the responder >> to send the response message back on a given return path using the >> MPLS Label Stack sub-TLV in the Return Path TLV defined in this >> document. >> >> Perhaps: >> In the query message, the querier can request that the responder send >> the response message back on a given return path using the MPLS Label >> Stack Sub-TLV in the Return Path TLV defined in this document. >> --> >> <RG> Ok. >> >> >> >> 12) <!-- [rfced] Please review these similar sentences and let us know if >> we may update them for readability. >> >> More specifically, what does "which" refer to in the examples below? Does >> it refer to the ACH or the different values in parentheses? >> >> <RG> Value as in the suggested text. >> >> In addition, we were unable to find "Combined DM+LM" in RFC 6374 as seen in >> the third example. Should this be updated to "combined LM/DM message" as >> used in RFC 6374? >> >> <RG> Yes. >> >> >> Original: >> As defined in [RFC6374], MPLS Delay Measurement (DM) query and >> response messages use the Associated Channel Header (ACH) (value >> 0x000C for delay measurement) [RFC6374], which identifies the message >> type and the message payload as defined in Section 3.2 [RFC6374] >> following the ACH. >> >> As defined in [RFC6374], MPLS LM query and response messages use the >> Associated Channel Header (ACH) (value 0x000A for direct loss >> measurement or value 0x000B for inferred loss measurement), which >> identifies the message type and the message payload defined in >> Section 3.1 [RFC6374] following the ACH. >> >> As defined in [RFC6374], Combined DM+LM query and response messages >> use the Associated Channel Header (ACH) (value 0x000D for direct loss >> and delay measurement or value 0x000E for inferred loss and delay >> measurement), which identifies the message type and the message >> payload defined in Section 3.3 [RFC6374] following the ACH. >> >> Perhaps: >> As defined in [RFC6374], MPLS Delay Measurement (DM) query and response >> messages use the Associated Channel Header (ACH) (with the value 0x000C >> for delay measurement). This value identifies the message type and the >> message payload that follow the ACH, as defined in Section 3.2 of >> [RFC6374]. >> >> As defined in [RFC6374], MPLS LM query and response messages use the ACH >> (with the value 0x000A for direct loss measurement or the value 0x000B >> for inferred loss measurement). This value identifies the message type >> and the message payload that follow the ACH, as defined in Section 3.1 >> of [RFC6374]. >> >> As defined in [RFC6374], combined DM+LM query and response messages use >> the ACH (with the value 0x000D for direct loss and delay measurement or >> the value 0x000E for inferred loss and delay measurement). This value >> identifies the message type and the message payload that follows the >> ACH, as defined in Section 3.3 of [RFC6374]. >> >> --> >> <RG> Ok. Except DM+LM to be changed to LM/DM as suggested. >> >> >> 13) <!-- [rfced] In the instances below, we have adjusted "for accounting >> received traffic". Please review to ensure these changes do not alter your >> meaning. >> >> Original: >> The Path Segment Identifier (PSID) [RFC9545] MUST be carried in the >> received data packet for the traffic flow under measurement for >> accounting received traffic on the egress node of the SR-MPLS Policy. >> >> Different values of PSID can be used per Candidate-Path for accounting >> received traffic to measure packet loss at the Candidate- Path level. >> >> Current: >> The Path Segment Identifier (PSID) [RFC9545] MUST be carried in the >> received data packet for the traffic flow under measurement, in order to >> account for received traffic on the egress node of the SR-MPLS Policy. >> >> Different values of the PSID can be used per Candidate-Path to account >> for received traffic and to measure packet loss at the Candidate-Path >> level. >> --> >> <RG> Ok >> >> >> 14) <!-- [rfced] In the text below, does "while" mean "at the same time", >> or does it represent a contrast (like "whereas" or "on the other hand")? >> >> Original: >> The LM query and response messages defined in [RFC6374] are used to >> measure packet loss for the block of data packets transmitted with >> the previous marking while data packets carry alternate marking. >> >> Perhaps: >> The LM query and response messages defined in [RFC6374] are used to >> measure packet loss for the block of data packets transmitted with the >> previous marking, whereas data packets carry alternate marking. >> --> >> <RG> Ok >> >> >> >> 15) <!-- [rfced] FYI - The quoted text below appears differently in RFC >> 9341. We have updated to match RFC 9341. >> >> Original: >> "The assumption of the block number mechanism is that the measurement >> nodes are time synchronized" as specified in Section 4.3 of [RFC9341] >> is not necessary, as the block number on the responder can be >> synchronized based on the received LM query messages. >> >> Current: >> Section 4.3 of [RFC9341] specifies: "The assumption of this BN >> mechanism is that the measurement nodes are time synchronized." However, >> this is not necessary, as the block number on the responder can be >> synchronized based on the received LM query messages. >> >> --> >> >> <RG> Ok >> >> >> 16) <!-- [rfced] Is "LSE" singular or plural in the text below? >> >> Original: >> The MPLS Label Stack contains a list of 32-bit LSE that includes a >> 20-bit label value, 8-bit TTL value, 3-bit TC value, and 1-bit EOS >> (S) field. >> >> Perhaps (LSE is plural): >> The MPLS Label Stack contains a list of 32-bit LSEs that each include a >> 20-bit label value, an 8-bit TTL value, a 3-bit TC value, and a 1-bit >> EOS (S) field. >> >> --> >> <RG> Ok >> >> >> >> 17) <!-- [rfced] We have removed "TLV" from the Descriptions to align with >> the IANA registries <https://www.iana.org/assignments/g-ach-parameters>. >> Please let us know any corrections. >> >> Original: >> | TBA1 | Return Path TLV | This document | >> | TBA2 | Block Number TLV | This document | >> >> Current: >> | 5 | Return Path | RFC 9779 | >> | 6 | Block Number | RFC 9779 | >> --> >> <RG> Ok >> >> >> >> 18) <!-- [rfced] Should the registry name be plural? Note that we will ask >> IANA to update their registry if this change is accepted. >> >> Current: Return Path Sub-TLV Type >> Perhaps: Return Path Sub-TLV Types >> --> >> <RG> Yes >> >> >> 19) <!-- [rfced] Much of this text duplicates what appears in the table. >> Perhaps the text should just indicate that the code points are assigned as >> defined in Table 2? >> >> Section 12: >> All code points in the range 0 through 175 in this registry >> shall be allocated according to the "IETF Review" procedure as >> specified in [RFC8126]. Code points in the range 176 through 239 in >> this registry shall be allocated according to the "First Come, First >> Served" procedure as specified in [RFC8126]. Remaining code points >> are allocated according to Table 2: >> >> Table 2: >> | Value | Description | Reference | >> +===========+=========================+===============+ >> | 1 - 175 | IETF Review | This document | >> | 176 - 239 | First Come First Served | This document | >> | 240 - 251 | Experimental Use | This document | >> | 252 - 254 | Private Use | This document | >> --> >> <RG> Agree to change to: >> >> The code points are allocated according to Table 2: >> >> >> 20) <!-- [rfced] Would it make sense to refer to the MPLS Review Team >> (assuming that is correct), as we are unsure what MPLS-RT refers to and we >> are unable to find information about it. >> >> Original: >> Thanks to Huaimo Chen, Yimin Shen, and Xufeng Liu for MPLS-RT expert >> review, ... >> --> >> <RG> Perhaps >> >> Thanks to Huaimo Chen, Yimin Shen, and Xufeng Liu for MPLS expert >> review, ... >> >> >> 21) <!-- [rfced] [IEEE802.1AX] references the 2008 version of this IEEE >> Standard. May we update this reference to use the current standard from >> 2020 as seen in the following URL: >> <https://ieeexplore.ieee.org/document/9105034>? >> >> --> >> <RG> Yes >> >> >> 22) <!-- [rfced] We removed the quotes around Control Code throughout to >> align with use in RFC 6374. We have also removed the quotes and >> capitalized "in-band response requested" and "out-of-band response >> requested" to match what appears in RFC 6374 and the IANA registry. Please >> review and let us know if corrections are needed. >> --> >> <RG> Ok >> >> 23) <!-- [rfced] Please review the following changes and questions >> regarding the terms used in this document: >> >> a) RFC 8402 uses "node-SID" and "Anycast-SID" rather than "node SID" and >> "Anycast SID". May we update these to match the usage from RFC 8402? >> >> <RG> Yes. >> >> b) We note different capitalization of label stack vs. Label Stack. We >> believe the lowercase "label stack" is used in general text, but "Label >> Stack" is capitalized when it refers to the the TLV. Please confirm that >> MPLS Label Stack is capitalized correctly in the following: >> >> Original: >> The MPLS Label Stack contains a list of 32-bit LSE that includes a >> 20-bit label value, 8-bit TTL value, 3-bit TC value, and 1-bit EOS >> (S) field. An MPLS Label Stack Sub-TLV may carry a stack of labels >> or a Binding SID label [RFC8402] of the Return SR-MPLS Policy. >> --> >> <RG> Perhaps >> >> The MPLS label stack contains a list of 32-bit LSE that includes a >> 20-bit label value, 8-bit TTL value, 3-bit TC value, and 1-bit EOS >> (S) field. An MPLS Label Stack Sub-TLV may carry a stack of labels >> or a Binding SID label [RFC8402] of the Return SR-MPLS Policy. >> >> >> >> 24) <!-- [rfced] Please review the following questions and changes >> regarding the abbreviations used in this document. >> >> a) Per Section 3.6 of RFC 7322 ("RFC Style Guide"), abbreviations should be >> expanded upon first use. Is "EOS" in the text below an abbreviation? If so, >> how may it be expanded? >> >> 1-bit EOS (S) field >> >> <RG> Perhaps: >> >> 1-bit End of Stack (S) field >> >> b) FYI - We have expanded the abbreviation below. Please review to >> ensure correctness. >> >> Border Gateway Protocol - Link State (BGP-LS) >> >> --> >> <RG> Ok >> >> 25) <!-- [rfced] Please review the "Inclusive Language" portion of the >> online Style Guide >> <https://www.rfc-editor.org/styleguide/part2/#inclusive_language> >> and let us know if any changes are needed. Updates of this nature >> typically result in more precise language, which is helpful for readers. >> >> Note that our script did not flag any words in particular, but this should >> still be reviewed as a best practice. >> >> --> >> >> <RG> Believe the document is ok. >> >> Thanks, >> >> Rakesh >> >> >> >> Thank you. >> >> RFC Editor >> >> >> >> On Apr 16, 2025, at 3:52 PM, rfc-edi...@rfc-editor.org wrote: >> >> *****IMPORTANT***** >> >> Updated 2025/04/16 >> >> RFC Author(s): >> -------------- >> >> Instructions for Completing AUTH48 >> >> Your document has now entered AUTH48. Once it has been reviewed and >> approved by you and all coauthors, it will be published as an RFC. >> If an author is no longer available, there are several remedies >> available as listed in the FAQ (https://www.rfc-editor.org/faq/). >> >> You and you coauthors are responsible for engaging other parties >> (e.g., Contributors or Working Group) as necessary before providing >> your approval. >> >> Planning your review >> --------------------- >> >> Please review the following aspects of your document: >> >> * RFC Editor questions >> >> Please review and resolve any questions raised by the RFC Editor >> that have been included in the XML file as comments marked as >> follows: >> >> <!-- [rfced] ... --> >> >> These questions will also be sent in a subsequent email. >> >> * Changes submitted by coauthors >> >> Please ensure that you review any changes submitted by your >> coauthors. 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Editorial changes do not require approval from a stream manager. >> >> >> Approving for publication >> -------------------------- >> >> To approve your RFC for publication, please reply to this email stating >> that you approve this RFC for publication. Please use ‘REPLY ALL’, >> as all the parties CCed on this message need to see your approval. >> >> >> Files >> ----- >> >> The files are available here: >> https://www.rfc-editor.org/authors/rfc9779.xml >> https://www.rfc-editor.org/authors/rfc9779.html >> https://www.rfc-editor.org/authors/rfc9779.pdf >> https://www.rfc-editor.org/authors/rfc9779.txt >> >> Diff file of the text: >> https://www.rfc-editor.org/authors/rfc9779-diff.html >> https://www.rfc-editor.org/authors/rfc9779-rfcdiff.html (side by side) >> >> Diff of the XML: >> https://www.rfc-editor.org/authors/rfc9779-xmldiff1.html >> >> >> Tracking progress >> ----------------- >> >> The details of the AUTH48 status of your document are here: >> https://www.rfc-editor.org/auth48/rfc9779 >> >> Please let us know if you have any questions. >> >> Thank you for your cooperation, >> >> RFC Editor >> >> -------------------------------------- >> RFC9779 (draft-ietf-mpls-rfc6374-sr-17) >> >> Title : Performance Measurement for Segment Routing Networks with >> MPLS Data Plane >> Author(s) : R. Gandhi, C. Filsfils, D. Voyer, S. Salsano, M. Chen >> WG Chair(s) : Nicolai Leymann, Tarek Saad, Tony Li >> >> Area Director(s) : Jim Guichard, Ketan Talaulikar, Gunter Van de Velde >> >> > -- auth48archive mailing list -- auth48archive@rfc-editor.org To unsubscribe send an email to auth48archive-le...@rfc-editor.org
