Hi David,

Thank you for updating and catching those additional inconsistencies! The 
changes look good.

Best regards,
Alanna Paloma
RFC Production Center

> On Sep 16, 2025, at 5:14 PM, David Dong via RT <iana-mat...@iana.org> wrote:
> 
> Hi Alanna,
> 
> We've updated the registry to fix these and a few other inconsistencies with 
> the published document (quotation marks around registry names, one instance 
> of LSB/MSB abbreviation, a missing line for "ipv6ExtensionHeadersFull" under 
> Additional Information); please see:
> 
> https://www.iana.org/assignments/ipfix/
> 
> Thank you.
> 
> Best regards,
> 
> David Dong
> IANA Services Sr. Specialist
> 
> On Tue Sep 16 20:17:46 2025, apal...@staff.rfc-editor.org wrote:
>> IANA,
>> 
>> Med noticed some inconsistencies between the published document and
>> the "IPFIX Information Elements” registry
>> <https://www.iana.org/assignments/ipfix/ipfix.xhtml#ipfix-information-
>> elements>. Please update the registry to match the published document.
>> 
>> See this diff file:
>> https://author-tools.ietf.org/iddiff?url1=draft-ietf-opsawg-ipfix-
>> tcpo-v6eh-18&url2=rfc9740&difftype=--html
>> 
>> 
>> 1) Please update the Description of ElementID 515
>> ipv6ExtensionHeadersFull as follows:
>> - remove hyphens from “least-significant” and “most-significant”
>> - add a comma between “IE” and “while"
>> - update “chain” to “chains”
>> - update “between” to “of"
>> 
>> Old:
>> Bit 0 corresponds to the least-significant bit in the
>> ipv6ExtensionHeadersFull IE while bit 255 corresponds to the most-
>> significant bit of the IE.
>> …
>> Extension headers observed in a Flow with varying extension header
>> chain MUST NOT be grouped in the ipv6ExtensionHeadersFull IE if the
>> ipv6ExtensionHeaderChainLengthList IE is also present.
>> 
>> If the ipv6ExtensionHeaderChainLengthList IE is not present, then
>> extension headers observed in a Flow with varying extension header
>> chain MAY be grouped in one single ipv6ExtensionHeadersFull IE or be
>> exported in separate ipv6ExtensionHeadersFull IEs, one for each
>> extension header chain.
>> 
>> The ipv6ExtensionHeadersFull IE MUST NOT be exported if
>> ipv6ExtensionHeaderTypeCountList IE is also present because of the
>> overlapping scopes between these two IEs.
>> 
>> New:
>> Bit 0 corresponds to the least significant bit in the
>> ipv6ExtensionHeadersFull IE, while bit 255 corresponds to the most
>> significant bit of the IE.
>> …
>> Extension headers observed in a Flow with varying extension header
>> chains MUST NOT be grouped in the ipv6ExtensionHeadersFull IE if the
>> ipv6ExtensionHeaderChainLengthList IE is also present.
>> 
>> If the ipv6ExtensionHeaderChainLengthList IE is not present, then
>> extension headers observed in a Flow with varying extension header
>> chains MAY be grouped in one single ipv6ExtensionHeadersFull IE or be
>> exported in separate ipv6ExtensionHeadersFull IEs, one for each
>> extension header chain.
>> 
>> The ipv6ExtensionHeadersFull IE MUST NOT be exported if
>> ipv6ExtensionHeaderTypeCountList IE is also present because of the
>> overlapping scopes of these two IEs.
>> 
>> 
>> 2) Please update the Description of ElementID 516
>> ipv6ExtensionHeaderTypeCountList as follows:
>> - add article “a"
>> - update “chain” to “chains"
>> 
>> Old:
>> Each header chain in Flow with varying extension header chain MUST be
>> exported in a separate IE.
>> …
>> For example, if an IPv6 packet of a Flow includes a Hop-by-Hop Options
>> header, a Destination Options header, a Fragment header, and
>> Destination Options header, the ipv6ExtensionHeaderTypeCountList IE
>> will report:
>> 
>> New:
>> Each header chain in a Flow with varying extension header chains MUST
>> be exported in a separate IE.
>> …
>> For example, if an IPv6 packet of a Flow includes a Hop-by-Hop Options
>> header, a Destination Options header, a Fragment header, and a
>> Destination Options header, the ipv6ExtensionHeaderTypeCountList IE
>> will report:
>> 
>> 
>> 3) Please update the Description of ElementID 517
>> ipv6ExtensionHeadersLimit as follows:
>> - update “headers” to “header”
>> 
>> Old:
>> When set to “false”, this IE indicates that the exported extension
>> headers information (e.g., ipv6ExtensionHeadersFull or
>> ipv6ExtensionHeaderTypeCountList) does not match the full enclosed
>> extension headers, but only up to a limit that is typically set by the
>> hardware or software.
>> 
>> New:
>> When set to “false”, this IE indicates that the exported extension
>> header information (e.g., ipv6ExtensionHeadersFull or
>> ipv6ExtensionHeaderTypeCountList) does not match the full enclosed
>> extension headers, but only up to a limit that is typically set by the
>> hardware or software.
>> 
>> 
>> 4) Please update the Description of ElementID 518
>> ipv6ExtensionHeadersChainLength as follows:
>> - update “are” to “were”
>> - update “length” to “lengths”
>> - update “chain” to “chains”
>> 
>> Old:
>> However, it was regularly reported that IPv6 packets with extension
>> headers are often dropped in the Internet (e.g., [RFC7872]).
>> …
>> The length is the sum of the length of all extension headers of the
>> chain.
>> …
>> Each header chain length of a Flow with varying extension header chain
>> MUST be exported in a separate ipv6ExtensionHeadersChainLength IE.
>> 
>> New:
>> However, it was regularly reported that IPv6 packets with extension
>> headers were often dropped in the Internet (e.g., [RFC7872]).
>> …
>> The length is the sum of the lengths of all extension headers of the
>> chain.
>> …
>> Each header chain length of a Flow with varying extension header
>> chains MUST be exported in a separate ipv6ExtensionHeadersChainLength
>> IE.
>> 
>> 
>> 5) Please update the Description of Element ID 519
>> ipv6ExtensionHeaderChainLengthList as follows:
>> - update “length” to “lengths”
>> - update “chain” to “chains”
>> 
>> Old:
>> This IE is used to report the chains and their length as observed in a
>> Flow with varying extension header chain.
>> 
>> New:
>> This IE is used to report the chains and their lengths as observed in
>> a Flow with varying extension header chains.
>> 
>> 
>> 6) Please update the Description of ElementID 520 tcpOptionsFull as
>> follows:
>> - remove hyphens from “least-significant” and “most-significant”
>> - add comma between “IE” and “while"
>> 
>> Old:
>> TCP option Kind 0 corresponds to the least-significant bit in the
>> tcpOptionsFull IE while Kind 255 corresponds to the most-significant
>> bit of the IE.
>> 
>> New:
>> TCP option Kind 0 corresponds to the least significant bit in the
>> tcpOptionsFull IE, while Kind 255 corresponds to the most significant
>> bit of the IE.
>> 
>> 
>> Thank you,
>> Alanna Paloma
>> RFC Production Center
>> 
>> 
>>> On Feb 25, 2025, at 6:37 PM, Sabrina Tanamal via RT <iana-
>>> mat...@iana.org> wrote:
>>> 
>>> Hi Alice,
>>> 
>>> On Tue Feb 25 22:53:04 2025, aru...@staff.rfc-editor.org wrote:
>>>> IANA,
>>>> Re: https://www.iana.org/assignments/tcp-parameters/tcp-
>>>> parameters.xhtml#tcp-exids
>>>> Would you please cap the 'C' in 'Communications' in this existing
>>>> description?
>>>> 
>>>> Old:  0xE2D4C3D9  Shared Memory communications over RDMA protocol
>>>> [RFC7609]
>>>> New:  0xE2D4C3D9  Shared Memory Communications over RDMA protocol
>>>> [RFC7609]
>>> 
>>> Done. Please see: https://www.iana.org/assignments/tcp-parameters
>>> 
>>> Thanks,
>>> Sabrina
>>> 
>>>> The IANA Cons. of RFC 7609 (https://www.rfc-
>>>> editor.org/rfc/rfc7609.html#section-6) does not contain this exact
>>>> text, but it does appear elsewhere in the RFC (abstract,
>>>> introduction).
>>>> 
>>>> Thank you.
>>>> RFC Editor/ar
>>>> 
>>>> On Feb 24, 2025, at 8:09 AM, mohamed.boucad...@orange.com wrote:
>>>> [...]
>>>>> • I agree with the change in the first para of S6.2.2. However,
>>>>> please note that the OLD text was echoing the content at
>>>>> https://www.iana.org/assignments/tcp-parameters/tcp-
>>>>> parameters.xhtml#tcp-exids. It is worth to report this to IANA.
>>> 
> 

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