Re: [tsvwg] I-D Action: draft-ietf-tsvwg-multipath-dccp-03.txt

[[e-mail]]

Dear TSVWG community,

upfront to the TSVWG interim meeting tomorrow we published a -03 version, which incorporates a lot of bugfixes and smaller enhancements. Along with that we also updated our Open Source implementation available at https://multipath-dccp.org. A lot of traction is also now coming from 3GPP who consider MP-DCCP for 5G ATSSS purposes in Rel. 18 and discuss this in the ongoing study phase.

We more and more come closer to a - from the authors view - complete draft. It would be very welcome if others besides the authors could start reviewing and give us their feedback.

Hope to see you tomorrow in the interim meeting, the slides therefore are already available at https://datatracker.ietf.org/meeting/interim-2022-tsvwg-01/materials/slides-interim-2022-tsvwg-01-sessa-31-multipath-dccp-00.

Br

Markus

> -----Original Message-----
> From: tsvwg <[e-mail]> On Behalf Of [e-mail]
> Sent: Dienstag, 15. Februar 2022 10:01
> To: [e-mail]
> Cc: [e-mail]
> Subject: [tsvwg] I-D Action: draft-ietf-tsvwg-multipath-dccp-03.txt
> 
> 
> 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           : DCCP Extensions for Multipath Operation with Multiple Addresses
>         Authors         : Markus Amend
>                           Anna Brunstrom
>                           Andreas Kassler
>                           Veselin Rakocevic
>                           Stephen Johnson
> 	Filename        : draft-ietf-tsvwg-multipath-dccp-03.txt
> 	Pages           : 33
> 	Date            : 2022-02-15
> 
> Abstract:
>    DCCP communication is currently restricted to a single path per
>    connection, yet multiple paths often exist between peers.  The
>    simultaneous use of these multiple paths for a DCCP session could
>    improve resource usage within the network and, thus, improve user
>    experience through higher throughput and improved resilience to
>    network failures.  Use cases for a Multipath DCCP (MP-DCCP) are
>    mobile devices (handsets, vehicles) and residential home gateways
>    simultaneously connected to distinct paths as, e.g., a cellular link
>    and a WiFi link or to a mobile radio station and a fixed access
>    network.  Compared to existing multipath protocols such as MPTCP, MP-
>    DCCP provides specific support for non-TCP user traffic as UDP or
>    plain IP.  More details on potential use cases are provided in
>    [website], [slide], and [paper].  All these use cases profit from an
>    Open Source Linux reference implementation provided under [website].
> 
>    This document presents a set of extensions to traditional DCCP to
>    support multipath operation.  Multipath DCCP provides the ability to
>    simultaneously use multiple paths between peers.  The protocol offers
>    the same type of service to applications as DCCP and it provides the
>    components necessary to establish and use multiple DCCP flows across
>    potentially disjoint paths.
> 
> 
> The IETF datatracker status page for this draft is:
> https://datatracker.ietf.org/doc/draft-ietf-tsvwg-multipath-dccp/
> 
> There is also an HTML version available at:
> https://www.ietf.org/archive/id/draft-ietf-tsvwg-multipath-dccp-03.html
> 
> A diff from the previous version is available at:
> https://www.ietf.org/rfcdiff?url2=draft-ietf-tsvwg-multipath-dccp-03
> 
> 
> Internet-Drafts are also available by rsync at rsync.ietf.org::internet-drafts
>