Re: [tsvwg] I-D Action: draft-ietf-tsvwg-multipath-dccp-05.txt

[[e-mail]]

Dear TSVWG community,

I'm pleased to share with you our progress in maturing MP-DCCP. Due to heavy prototype development during the creation of -05 we were able to significantly improve the draft for practical usage, as we detected a lot of ambiguities.

A summary of the changes can be found at: https://github.com/markusa/ietf-multipath-dccp/releases/tag/draft-ietf-05

The authors believe that at this stage, feedback from non-authors is useful, as no further improvements are planned. For those who have already committed to a review, we will begin by contacting them bilaterally. Everyone else, please also feel encouraged to give us your feedback here or in the issue tracker: https://github.com/markusa/ietf-multipath-dccp/issues.

Br

Markus

> -----Original Message-----
> From: tsvwg <[e-mail]> On Behalf Of internet-
> [e-mail]
> Sent: Freitag, 8. Juli 2022 14:03
> To: [e-mail]
> Cc: [e-mail]
> Subject: [tsvwg] I-D Action: draft-ietf-tsvwg-multipath-dccp-05.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-05.txt
>   Pages           : 40
>   Date            : 2022-07-08
> 
> Abstract:
>    DCCP communication as defined in [RFC4340] is 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 subflows
>    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-05.html
> 
> A diff from the previous version is available at:
> https://www.ietf.org/rfcdiff?url2=draft-ietf-tsvwg-multipath-dccp-05
> 
> 
> Internet-Drafts are also available by rsync at rsync.ietf.org::internet-drafts
>