Authors,

This is another friendly reminder that we await your replies to our questions 
as well as the separate email on 10/28/25 regarding IANA. 

The files are available here:
https://www.rfc-editor.org/authors/rfc9897.xml
https://www.rfc-editor.org/authors/rfc9897.html
https://www.rfc-editor.org/authors/rfc9897.pdf
https://www.rfc-editor.org/authors/rfc9897.txt

Diff file of the text:
https://www.rfc-editor.org/authors/rfc9897-diff.html
https://www.rfc-editor.org/authors/rfc9897-rfcdiff.html (side by side)

Diff of the XML: 
https://www.rfc-editor.org/authors/rfc9897-xmldiff1.html


Best regards,

Karen Moore
RFC Production Center

>> On Oct 27, 2025, at 11:01 PM, [email protected] wrote:
>> 
>> Authors,
>> 
>> While reviewing this document during AUTH48, please resolve (as necessary) 
>> the following questions, which are also in the source file.
>> 
>> 1) <!--[rfced] Please note that the title has been updated as
>> follows. The abbreviation has been expanded per Section 3.6 of
>> RFC 7322 ("RFC Style Guide"). Please review.
>> 
>> Original:
>>  DCCP Extensions for Multipath Operation with Multiple Addresses
>> 
>> Current:
>>  Datagram Congestion Control Protocol (DCCP) Extensions for 
>>  Multipath Operation with Multiple Addresses
>> -->
>> 
>> 
>> 2) <!-- [rfced] Please insert any keywords (beyond those that appear in
>> the title) for use on https://www.rfc-editor.org/search. -->
>> 
>> 
>> 3) <!--[rfced] Please clarify what "This" refers to in the following
>> sentence - is it "These fundamentals"?
>> 
>> Current:
>>  This also applies to the DCCP sequencing scheme, which is
>>  packet-based (Section 4.2 of [RFC4340]) and the principles for loss
>>  and retransmission of features as described in more detail in
>>  Section 6.6.3 of [RFC4340].
>> 
>> Perhaps:
>>  These fundamentals also apply to the DCCP sequencing scheme, which is
>>  packet-based (Section 4.2 of [RFC4340]), and to the principles for
>>  loss and retransmission of features as described in more detail in
>>  Section 6.6.3 of [RFC4340].
>> -->
>> 
>> 
>> 4) <!--[rfced] Please clarify the latter part of this sentence,
>> specifically "between" and the slash ("/"). Is the intended
>> meaning that hybrid access networks combine access between the
>> user equipment "or" residential gateway "and" an operator network
>> (option A) or is it between the user equipment "and" a
>> residential gateway within an operator network (option B)?
>> 
>> Original:
>>  In addition to the integration into DCCP services, implementers or
>>  future specification could choose MP-DCCP for other use cases like
>>  3GPP 5G multi-access solutions (e.g., Access Traffic Steering,
>>  Switching, and Splitting (ATSSS) specified in [TS23.501]) or hybrid
>>  access networks that either combine a 3GPP and a non-3GPP access or a
>>  fixed and cellular access between user-equipment/residential gateway
>>  and operator network. 
>> 
>> Perhaps A:
>>  In addition to the integration into DCCP services, implementers or
>>  future specifications could choose MP-DCCP for other use cases such
>>  as 3GPP 5G multi-access solutions (e.g., Access Traffic Steering,
>>  Switching, and Splitting (ATSSS) as specified in [TS23.501]) or
>>  hybrid access networks that combine either 3GPP and non-3GPP access
>>  or fixed and cellular access between the user equipment or
>>  residential gateway and an operator network.
>> 
>> or
>> Perhaps B:
>>  In addition to the integration into DCCP services, implementers or
>>  future specifications could choose MP-DCCP for other use cases such
>>  as 3GPP 5G multi-access solutions (e.g., Access Traffic Steering,
>>  Switching, and Splitting (ATSSS) as specified in [TS23.501]) or
>>  hybrid access networks that combine either 3GPP and non-3GPP access
>>  or fixed and cellular access between the user equipment and
>>  residential gateway within an operator network.
>> -->
>> 
>> 
>> 5) <!--[rfced] Section 3.1: Would you like to add text to introduce
>> the numbered list that immediately follows Figure 4?
>> 
>> Original:
>>  1.  The Client indicates support for both MP-DCCP versions 1 and 0,
>>      with a preference for version 1.
>> 
>>  2.  Server agrees on using MP-DCCP version 1 indicated by the first
>>      value, and supplies its own preference list with the following
>>      values.
>> 
>>  3.  MP-DCCP is then enabled between the Client and Server with
>>      version 1.
>> 
>> Perhaps:
>> This example illustrates the following:
>> 
>>  1.  The Client indicates support for both MP-DCCP versions 1 and 0,
>>      with a preference for version 1.
>> 
>>  2.  The Server agrees on using MP-DCCP version 1 indicated by the first
>>      value and supplies its own preference list with the following
>>      values.
>> 
>>  3.  MP-DCCP is then enabled between the Client and Server with
>>      version 1.
>> -->
>> 
>> 
>> 6) <!--[rfced] Table 4: May we update these IANA-registered descriptions as 
>> follows for clarity? If so, we will ask IANA to update the registry 
>> accordingly. (Also, they will be updated in Table 8.)
>> 
>> Original:
>> MP_OPT=7  MP_ADDADDR     Advertise additional address(es)/port(s)
>> MP_OPT=8  MP_REMOVEADDR  Remove address(es)/port(s)
>> 
>> Perhaps:
>> MP_OPT=7  MP_ADDADDR     Advertise one or more additional addresses/ports
>> MP_OPT=8  MP_REMOVEADDR  Remove one or more addresses/ports
>> -->
>> 
>> 
>> 7) <!--[rfced] May we rephrase this sentence for improved readability?
>> 
>> Original:
>>  This could happen if a datagram with MP_PRIO and a first MP_SEQ_1
>>  and another datagram with MP_ADDADDR and a second MP_SEQ_2 are
>>  received in short succession.
>> 
>> Perhaps:
>>  This could happen if the following are received in short
>>  succession: a datagram with MP_PRIO and a first MP_SEQ_1 and
>>  another datagram with MP_ADDADDR and a second MP_SEQ_2.
>> -->
>> 
>> 
>> 8) <!--[rfced] Figure Titles
>> 
>> a) Should the titles of Figures 7 and 8 include "MP_CONFIRM"
>> (instead of "MP-DCCP CONFIRM") to match the content in the
>> figures?
>> 
>> Note that the running text refers to the procedure as "MP-DCCP
>> confirm" - should the running text be updated as well for consistency?
>> Please let us know if "MP_CONFIRM", "MP-DCCP CONFIRM", or other is 
>> preferred.
>> 
>> Current (Figure 7):
>>  Example MP-DCCP CONFIRM Procedure 
>> 
>> Perhaps:
>>  Example MP_CONFIRM Procedure
>> 
>> ...
>> Current (Figure 8)
>>  Example MP-DCCP CONFIRM Procedure with an Outdated Suboption
>> 
>> Perhaps:
>>  Example MP_CONFIRM Procedure with an Outdated Suboption
>> 
>> 
>> b) Should the title of Figure 22 perhaps be "Example MP_ADDADDR
>> Procedure" rather than "Example MP-DCCP ADDADDR Procedure" to match
>> the content in the figure? We note that "MP-DCCP ADDADDR" is not used
>> in the running text.
>> 
>> Current:
>>  Example MP-DCCP ADDADDR Procedure 
>> 
>> Perhaps:
>>  Example MP_ADDADDR Procedure 
>> 
>> c) Should the title of Figure 23 perhaps be "Example MP_ADDADDR
>> Procedure" rather than "Example MP-DCCP REMOVEADDR Procedure" to match
>> the content in the figure? We note that "MP-DCCP REMOVEADDR" is not
>> used in the running text.
>> 
>> Current:
>>  Example MP-DCCP REMOVEADDR Procedure
>> 
>> Perhaps:
>>  Example MP_REMOVEADDR Procedure
>> -->
>> 
>> 
>> 9) <!--[rfced] We note that Figures 9, 11, and 19 are listed first within
>> their sections without any lead-in text. Is this intended, or
>> would you like to add a lead-in sentence for consistency with the
>> other sections?
>> -->
>> 
>> 
>> 10) <!--[rfced] Per RFCs 2119 and 8174, may we update "REQUIRES" to
>> "REQUIRED" for correctness as shown below?
>> 
>> Original:
>>  The MP_JOIN option is used to add a new subflow to an existing MP-
>>  DCCP connection and REQUIRES a successful establishment of the first
>>  subflow using MP_KEY.
>> 
>> Perhaps:
>>  The MP_JOIN option is used to add a new subflow to an existing MP-
>>  DCCP connection, and a successful establishment of the first
>>  subflow using MP_KEY is REQUIRED.
>> -->  
>> 
>> 
>> 11) <!--[rfced] Please clarify this sentence, specifically "from the both
>> hosts Key Data". 
>> 
>> Original:
>>  Together with the derived key from the both hosts
>>  Key Data described in Section 3.2.4, the Nonce value builds the basis
>>  to calculate the HMAC used in the handshaking process as described in
>>  Section 3.3 to avoid replay attacks.
>> 
>> Perhaps:
>>  Together with the derived key from both hosts that exchange 
>>  Key Data as described in Section 3.2.4, the Nonce value builds the basis
>>  to calculate the Hash-based Message Authentication Code (HMAC) used in 
>>  the handshaking process described in Section 3.3 to avoid replay attacks.
>> 
>> Or:
>>  Together with the derived key from both hosts'
>>  Key Data (as described in Section 3.2.4), the Nonce value builds the basis
>>  to calculate the Hash-based Message Authentication Code (HMAC) used in the 
>>  handshaking process (as described in Section 3.3) to avoid replay attacks.
>> -->
>> 
>> 
>> 12) <!--[rfced] In Section 3.2.6, the text refers to the
>> "second and third step" of the handshake, so should the list 
>> in Section 3.3 be an ordered list instead of a bulleted list as
>> shown below?
>> 
>> Section 3.2.6:
>>  In addition, it provides authentication for subflows joining an
>>  existing MP_DCCP connection, as described in the second and third
>>  step of the handshake of a subsequent subflow in Section 3.3.
>> 
>> Original (Section 3.3):
>> The basic initial handshake for the first subflow is as follows:
>> 
>>  *  Host A sends a DCCP-Request with the MP-Capable feature Change
>>     request and the MP_KEY option with a Host-specific CI-A and a KeyA
>>     for each of the supported key types as described in Section 3.2.4.
>>     CI-A is a unique identifier during the lifetime of an MP-DCCP
>>     connection.
>> 
>>  *  Host B sends a DCCP-Response with Confirm feature for MP-Capable
>>     and the MP_Key option with a unique Host-specific CI-B and a
>>     single Host-specific KeyB.  The type of the key is chosen from the
>>     list of supported types from the previous request.
>> 
>>  *  Host A sends a DCCP-Ack to confirm the proper key exchange.
>> 
>>  *  Host B sends a DCCP-Ack to complete the handshake and set both
>>     connection ends to the OPEN state.
>> 
>> Perhaps (Section 3.3):
>> The basic initial handshake for the first subflow is as follows:
>> 
>>  1. Host A sends a DCCP-Request with the MP-Capable feature change
>>     request and the MP_KEY option with a Host-specific CI-A and a KeyA
>>     for each of the supported key types as described in Section 3.2.4.
>>     CI-A is a unique identifier during the lifetime of an MP-DCCP
>>     connection.
>> 
>>  2. Host B sends a DCCP-Response with a Confirm feature for MP-Capable
>>     and the MP_Key option with a unique Host-specific CI-B and a
>>     single Host-specific KeyB.  The type of the key is chosen from the
>>     list of supported types from the previous request.
>> 
>>  3. Host A sends a DCCP-Ack to confirm the proper key exchange.
>> 
>>  4. Host B sends a DCCP-Ack to complete the handshake and set both
>>     connection ends to the OPEN state.
>> -->
>> 
>> 
>> 13) <!--[rfced] May we reword this sentence for better readability as
>> shown below? Note that this sentence appears in Sections 3.2.8
>> and 3.2.9.
>> 
>> Original:
>>  In the same way as for MP_JOIN, the key for the HMAC algorithm, in
>>  the case of the message transmitted by Host A, will be d-KeyA, and
>>  in the case of Host B, d-KeyB.
>> 
>> Perhaps:
>>  Similar to MP_JOIN, the key for the HMAC algorithm will be d-KeyA
>>  when the message is transmitted by Host A and d-KeyB when
>>  transmitted by Host B.
>> -->
>> 
>> 
>> 14) <!-- [rfced] FYI: For consistency with the other figures, we fixed the 
>> bit ruler on Figure 18. (We extended the right side of the box by one
>> space so that the placement of the final "1" is over the minus sign
>> rather than the plus sign.) Please let us know if this is not accurate.
>> -->
>> 
>> 
>> 15) <!--[rfced] Section 3.2.10. Please confirm if "Cellular paths" should
>> be singular in the first sentence below, as we note the singular
>> form in the sentence that follows as well as in use cases #2 and #3.
>> 
>> Original:
>>  1.  Setting Wi-Fi path to Primary and Cellular paths to Secondary.
>>      In this case Wi-Fi will be used and Cellular will be used only
>>      if the Wi-Fi path is congested or not available.
>> 
>> Perhaps:
>>  1.  Setting the Wi-Fi path to Primary and Cellular path to Secondary.
>>      In this case, Wi-Fi will be used and Cellular will be used only
>>      if the Wi-Fi path is congested or not available.
>> -->
>> 
>> 
>> 16) <!--[rfced] Please clarify "and MUST be the appropriate one" - is
>> "appropriate one" essential to the sentence, or could it be
>> reworded as "the path MUST have the highest available priority
>> value" as shown below?
>> 
>> Original:
>>  In the case of path mobility (Section 3.11.1), only one path can be
>>  used at a time and MUST be the appropriate one that has the highest
>>  available priority value including also the prio numbers 1 and 2.
>> 
>> Perhaps:
>>  In the case of path mobility (Section 3.11.1), only one path can be
>>  used at a time, and the path MUST have the highest available
>>  priority value that includes the prio numbers 1 and 2.
>> -->
>> 
>> 
>> 17) <!--[rfced] Please clarify "in by"; is the intended meaning included
>> "in" or "by" the MP_CLOSE option? Also, should the second "must"
>> be "MUST"?
>> 
>> Original:
>>  To protect from unauthorized shutdown of a multi-path connection,
>>  the selected Key Data of the peer host during the handshaking
>>  procedure MUST be included in by the MP_CLOSE option and must be
>>  validated by the peer host. 
>> 
>> Perhaps (if "in"):
>>  To protect from unauthorized shutdown of a multipath connection,
>>  the selected Key Data of the peer host MUST be included in the
>>  MP_CLOSE option during the handshaking procedure and MUST be
>>  validated by the peer host. 
>> -->
>> 
>> 
>> 18) <!--[rfced] We are having trouble parsing this sentence. Please
>> clarify what items "between" refers to.
>> 
>> Original: 
>>  Note, the Key Data is different between MP_CLOSE option carried
>>  by DCCP-CloseReq or DCCP-Close.
>> -->
>> 
>> 
>> 19) <!--[rfced] Figure 20: May we change "Data TBD" to simply "Data",
>> as shown below? It is already explained directly below the figure: 
>> "The Data field can carry any data..."  
>> 
>> We note that "TBD" is used for a different purpose (in Table 3) 
>> to refer to the option length being "TBD" when the option type is >11.
>> 
>> Original:
>> |0 0 1 0 1 1 1 0|      var      |0 0 0 0 1 0 1 1|   Data TBD    |
>> 
>> Perhaps:
>> |0 0 1 0 1 1 1 0|      var      |0 0 0 0 1 0 1 1|     Data      |
>> -->
>> 
>> 
>> 20) <!--[rfced] FYI, in Figure 21, "DCCP-ACK" has been updated to
>> "DCCP-Ack" to match usage in the rest of the document.
>> -->
>> 
>> 
>> 21) <!--[rfced] What does "own" refer to in "own random nonce RA"?
>> 
>> Original: 
>>  Additionally, an own random nonce RA is transmitted 
>>  with the MP_JOIN.
>> -->
>> 
>> 
>> 22) <!--[rfced] In Section 3.3, is "message" the "HMAC Message" and "key"
>> the "Key" described in Section 3.2.6? If so, should these terms
>> be capitalized as shown below? Note that there is similar text in
>> the paragraph that follows (which refers to MP_JOIN(B)").
>> 
>> Original:
>>  As specified in Section 3.2.6, the HMAC is calculated by taking the
>>  leftmost 20 bytes from the SHA256 hash of a HMAC code created by
>>  using the nonce received with MP_JOIN(A) and the local nonce RB as
>>  message and the derived key described in Section 3.2.4 as key:
>> 
>> Perhaps:
>>  As specified in Section 3.2.6, the HMAC is calculated by taking the
>>  leftmost 20 bytes from the SHA256 hash of an HMAC code that is
>>  created by using both the nonce received with MP_JOIN(A) and the
>>  local nonce RB as the Message and the derived key as the Key, as
>>  described in Section 3.2.4:
>> -->
>> 
>> 
>> 23) <!--[rfced] May we reword this sentence for improved readability?
>> 
>> Original:
>>  The states transitioned when moving from the CLOSED to OPEN state
>>  during the four-way handshake remain the same as for DCCP, but it is
>>  no longer possible to transmit application data while in the REQUEST
>>  state.  
>> 
>> Perhaps:
>>  When the state moves from CLOSED to OPEN during the 4-way
>>  handshake, the transitioned states remain the same as for DCCP, but
>>  it is no longer possible to transmit application data while in the
>>  REQUEST state.
>> -->
>> 
>> 
>> 24) <!--[rfced] Is "aspect of" essential to this sentence or may it be 
>> removed?
>> 
>> Original:
>>  Likewise, the host that wants to create the subflows is RECOMMENDED
>>  to consider the aspect of available resources and the possible
>>  gains.
>> 
>> Perhaps:
>>  Likewise, it is RECOMMENDED that the host that wants to create the
>>  subflows considers the available resources and possible gains.
>> -->
>> 
>> 
>> 25) <!--[rfced] FYI: We added semicolons to this list for better
>> readability. Please let us know if you prefer otherwise.
>> 
>> Original:
>>  This can be a dynamic process further facilitated by the means of
>>  DCCP and MP-DCCP defined options such as path preference using
>>  MP-PRIO, adding or removing DCCP subflows using MP_REMOVEADDR,
>>  MP_ADDADDR or DCCP- Close/DCCP-Reset and also path metrics such as
>>  packet-loss-rate, CWND or RTT provided by the Congestion Control
>>  Algorithm.
>> 
>> Current:
>>  This can be a dynamic process further facilitated by the means of
>>  DCCP and MP-DCCP-defined options such as path preference using
>>  MP-PRIO; adding or removing DCCP subflows using MP_REMOVEADDR,
>>  MP_ADDADDR, or DCCP-Close/DCCP-Reset; and path metrics such as
>>  packet loss rate, congestion window (CWND), or RTT provided by 
>>  the Congestion Control Algorithm.
>> -->
>> 
>> 
>> 26) <!--[rfced] Does "SHOULD" refer only to the first part of this
>> sentence? And does "if not available" refer to the "path
>> priority"?  If so, may we rephrase the text as shown below for
>> clarity?
>> 
>> Original:
>>  This process SHOULD respect the path priority configured by the MP_PRIO
>>  suboption or if not available pick the most divergent source-
>>  destination pair from the original used source-destination pair.
>> 
>> Perhaps:
>>  This process SHOULD respect the path priority configured by the
>>  MP_PRIO suboption; otherwise, if the path priority is not
>>  available, pick the most divergent source-destination pair from
>>  the originally used source-destination pair.
>> -->
>> 
>> 
>> 27) <!-- [rfced] Should "Section 4" be "Section 3.6" where the fallback
>> scenario is discussed? Note that this sentence occurs in Section 4.
>> 
>> Current:
>>  Depending on the security requirements, different Key Types can be
>>  negotiated in the handshake procedure or must follow the fallback
>>  scenario described in Section 4.
>> 
>> Perhaps:
>>  Depending on the security requirements, different Key Types can be
>>  negotiated in the handshake procedure or must follow the fallback
>>  scenario described in Section 3.6.
>> -->
>> 
>> 
>> 28) <!-- [rfced] We note that RFC 4043 does not contain Section 16. Please
>> confirm which section should be referenced.
>> 
>> Current:
>>  DCCP already provides means to mitigate the potential impact of
>>  middleboxes, in comparison to TCP (see Section 16 of [RFC4043]).
>> -->
>> 
>> 
>> 29) <!--[rfced] We have included some clarifications about the IANA text
>> below. In addition, please review all of the IANA-related updates
>> carefully and let us know if any further updates are needed.
>> 
>> a) FYI: We updated "auth." to "authentication" in Tables 3 and 8
>> as there is enough space to write it out. We will ask IANA to update
>> the description in the "Multipath Options" registry accordingly.
>> 
>> Original:
>>  Hash-based message auth. code for MP-DCCP
>> 
>> Current:
>>  Hash-based message authentication code for MP-DCCP
>> 
>> b) FYI: We have updated the headings in Tables 6 and 7 to match
>> the headings listed in the "Feature Numbers" and "MP-DCCP 
>> Versions" registries, respectively 
>> <https://www.iana.org/assignments/dccp-parameters/>.
>> -->
>> 
>> 
>> 30) <!-- [rfced] We found the URL
>> <https://dl.acm.org/doi/10.1145/2413176.2413178> from the ACM
>> Digital Library. Would you like us to update this reference with
>> this URL as shown below?
>> 
>> Current:
>> [OLIA]  Khalili, R., Gast, N., Popovic, M., Upadhyay, U., and J.
>>        Le Boudec, "MPTCP is not pareto-optimal: performance
>>        issues and a possible solution", CoNEXT '12: Proceedings
>>        of the 8th international conference on Emerging networking
>>        experiments and technologies, pp. 1-12, December 2012.
>> 
>> Perhaps:
>> [OLIA]  Khalili, R., Gast, N., Popovic, M., Upadhyay, U., and J.
>>        Le Boudec, "MPTCP is not pareto-optimal: performance
>>        issues and a possible solution", CoNEXT '12: Proceedings
>>        of the 8th international conference on Emerging networking
>>        experiments and technologies, pp. 1-12, December 2012,
>>        <https://dl.acm.org/doi/10.1145/2413176.2413178>.
>> -->
>> 
>> 
>> 31) <!-- [rfced] Terminology
>> 
>> a) Throughout the text, the following terminology appears to be used 
>> inconsistently. Please review these occurrences and let us know if/how they
>> may be made consistent.  
>> 
>> CLOSED state vs. CLOSE state vs. CLOSING state
>> 
>> Client and Server vs. client and server (as well as 'the client and the 
>> server')
>> 
>> Congestion Control procedure vs. congestion control scheme
>>  [Note: Should the case be made the same for these terms?]
>> 
>> "Fast Close" vs. fast close
>>  [Note: Should the first mention in quotes be "fast close" 
>>  for consistency?]
>> 
>> Feature number 10 vs. feature number 10
>> Length vs. length 
>> handshake procedure/process vs. handshaking procedure/process
>> Key Type vs. Key types vs. key type
>> Multipath Capability vs. multipath capability
>> Multipath feature vs. multipath feature
>> Multipath option vs. multipath option vs. MP option
>> 
>> Multipath Capable Feature vs. Multipath Capable feature vs. MP-Capable 
>> feature 
>> vs. MP_CAPABLE feature
>> 
>> Nonce vs. nonce
>> Plain Text Key (Table 5) vs. Plain text key (Table 9)
>> Reset Code vs. reset code
>> Remove Address vs. Remove address (Tables 3 and 8)
>> 
>> SHA256 vs. SHA-256
>> [Note: "SHA256" is consistent in this document; however, "SHA-256" is 
>> hyphenated 
>> in the running text and some descriptions in RFC 6234; are any updates 
>> needed 
>> in this document for consistency with that RFC?]
>> 
>> b) FYI: We updated the following terms to the form on the right for 
>> consistency:
>> 
>> address ID -> Address ID
>> age -> Age
>> Change request -> change request (per all other RFCs)
>> DCCP Connections -> DCCP connections
>> four-way -> 4-way
>> host A -> Host A
>> IP Address -> IP address
>> key data -> Key Data
>> maximum segment lifetime ->  Maximum Segment Lifetime
>> multi-path -> multipath
>> UDP Encapsulation -> UDP encapsulation (per RFC 6773)
>> NAT Traversal -> NAT traversal (per RFC 6773)
>> -->
>> 
>> 
>> 32) <!-- [rfced] Abbreviations
>> 
>> a) FYI - We have added expansions for the following abbreviations
>> per Section 3.6 of RFC 7322 ("RFC Style Guide"). Please review each
>> expansion in the document carefully to ensure correctness.
>> 
>> command-line interface (CLI)
>> congestion window (CWND)
>> Path MTU (PMTU)
>> pebibytes (PiBs)
>> Stream Control Transmission Protocol (SCTP)
>> 
>> b) We note the following variations. Do you prefer the expansion to 
>> contain the hyphen or no hyphen?
>> 
>> Multipath-DCCP (MP-DCCP) vs. Multipath DCCP (MP-DCCP)
>> 
>> c) As recommended in the Web Portion of the Style Guide
>> <https://www.rfc-editor.org/styleguide/part2/#exp_abbrev>, once an
>> abbreviation is introduced, the abbreviated form should be used
>> thereafter. Please consider if you would like to apply this style for
>> the following terms (i.e., replace the expansion with the abbreviated 
>> form on the right):
>> 
>> Connection Identifier -> CI
>> Multipath DCCP -> MP-DCCP
>> -->
>> 
>> 
>> 33) <!-- [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.
>> 
>> For example, please consider whether "traditionally" should be updated for 
>> clarity.  
>> 
>> While the NIST website 
>> <https://web.archive.org/web/20250214092458/https://www.nist.gov/nist-research-library/
>> nist-technical-series-publications-author-instructions#table1>
>> indicates that this term is potentially biased, it is also ambiguous.  
>> "Tradition" is a subjective term, as it is not the same for everyone.
>> -->
>> 
>> 
>> Thank you.
>> 
>> Karen Moore and Alice Russo
>> RFC Production Center
>> 
>> 
>> On Oct 27, 2025, [email protected] wrote:
>> 
>> *****IMPORTANT*****
>> 
>> Updated 2025/10/27
>> 
>> 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/).
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>> Files 
>> -----
>> 
>> The files are available here:
>> https://www.rfc-editor.org/authors/rfc9897.xml
>> https://www.rfc-editor.org/authors/rfc9897.html
>> https://www.rfc-editor.org/authors/rfc9897.pdf
>> https://www.rfc-editor.org/authors/rfc9897.txt
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>> Tracking progress
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>> Please let us know if you have any questions.  
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>> Thank you for your cooperation,
>> 
>> RFC Editor
>> 
>> --------------------------------------
>> RFC9897 (draft-ietf-tsvwg-multipath-dccp-24)
>> 
>> Title            : DCCP Extensions for Multipath Operation with Multiple 
>> Addresses
>> Author(s)        : M. Amend, Ed., A. Brunstrom, A. Kassler, V. Rakocevic, S. 
>> Johnson
>> WG Chair(s)      : Martin Duke, Zaheduzzaman Sarker
>> Area Director(s) : Gorry Fairhurst, Mike Bishop
>> 
> 

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