Re: [tsvwg] I-D Action: draft-ietf-tsvwg-datagram-plpmtud-22.txt

[Magnus Westerlund <[e-mail]>]

WG,

I now intended to approve this document as the QUIC related text has been moved
to the QUIC specifications and this normative descripition has been removed from
this document. 

Cheers

Magnus Westerlund

On Wed, 2020-06-10 at 04:42 -0700, [e-mail] wrote:
> A New Internet-Draft is available from the on-line Internet-Drafts
> directories.
> This draft is a work item of the Transport Area Working Group WG of the IETF.
> 
>         Title           : Packetization Layer Path MTU Discovery for Datagram
> Transports
>         Authors         : Godred Fairhurst
>                           Tom Jones
>                           Michael Tuexen
>                           Irene Ruengeler
>                           Timo Voelker
> 	Filename        : draft-ietf-tsvwg-datagram-plpmtud-22.txt
> 	Pages           : 47
> 	Date            : 2020-06-10
> 
> Abstract:
>    This document describes a robust method for Path MTU Discovery
>    (PMTUD) for datagram Packetization Layers (PLs).  It describes an
>    extension to RFC 1191 and RFC 8201, which specifies ICMP-based Path
>    MTU Discovery for IPv4 and IPv6.  The method allows a PL, or a
>    datagram application that uses a PL, to discover whether a network
>    path can support the current size of datagram.  This can be used to
>    detect and reduce the message size when a sender encounters a packet
>    black hole (where packets are discarded).  The method can probe a
>    network path with progressively larger packets to discover whether
>    the maximum packet size can be increased.  This allows a sender to
>    determine an appropriate packet size, providing functionality for
>    datagram transports that is equivalent to the Packetization Layer
>    PMTUD specification for TCP, specified in RFC 4821.
> 
>    This document updates RFC 4821 to specify the PLPMTUD method for
>    datagram PLs.  It also updates RFC 8085 to refer to the method
>    specified in this document instead of the method in RFC 4821 for use
>    with UDP datagrams.  Section 7.3 of RFC 4960 recommends an endpoint
>    apply the techniques in RFC 4821 on a per-destination-address basis.
>    RFC 4960, RFC 6951, and RFC 8261 are updated to recommend that SCTP,
>    SCTP encapsulated in UDP and SCTP encapsulated in DTLS use the method
>    specified in this document instead of the method in RFC 4821.
> 
>    The document also provides implementation notes for incorporating
>    Datagram PMTUD into IETF datagram transports or applications that use
>    datagram transports.
> 
>    When published, this specification updates RFC 4960, RFC 4821, RFC
>    8085 and RFC 8261.
> 
> 
> The IETF datatracker status page for this draft is:
> https://datatracker.ietf.org/doc/draft-ietf-tsvwg-datagram-plpmtud/
> 
> There are also htmlized versions available at:
> https://tools.ietf.org/html/draft-ietf-tsvwg-datagram-plpmtud-22
> https://datatracker.ietf.org/doc/html/draft-ietf-tsvwg-datagram-plpmtud-22
> 
> A diff from the previous version is available at:
> https://www.ietf.org/rfcdiff?url2=draft-ietf-tsvwg-datagram-plpmtud-22
> 
> 
> Please note that it may take a couple of minutes from the time of submission
> until the htmlized version and diff are available at tools.ietf.org.
> 
> Internet-Drafts are also available by anonymous FTP at:
> ftp://ftp.ietf.org/internet-drafts/
> 
> 
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-- 
Cheers

Magnus Westerlund 


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