Re: [Spud] No. Operators don't need SPUD for mobile network management

Tom Herbert <tom@herbertland.com> Wed, 27 July 2016 03:05 UTC

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From: Tom Herbert <tom@herbertland.com>
Date: Tue, 26 Jul 2016 20:05:00 -0700
Message-ID: <CALx6S36qGMwaYeE1_2GYnd3sKn1PzBDRtdkcEZN8cmTEJ7BAOA@mail.gmail.com>
To: "Smith, Kevin, (R&D) Vodafone Group" <Kevin.Smith@vodafone.com>
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Cc: Frode Kileng <frodek@tele.no>, "spud@ietf.org" <spud@ietf.org>, "Eggert, Lars" <lars@netapp.com>, Mikael Abrahamsson <swmike@swm.pp.se>
Subject: Re: [Spud] No. Operators don't need SPUD for mobile network management
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On Mon, Jul 25, 2016 at 3:49 AM, Smith, Kevin, (R&D) Vodafone Group
<Kevin.Smith@vodafone.com> wrote:
> Another operator here:  I like the notion of PLUS being used to hint to the TCP sender regarding network radio cell conditions, i.e. mobile throughput guidance[1].  So network information being sent out to help tune cwnd.
>
I am not a big fan of having middleboxes purposely parsing an
modifying TCP options, but I do like security considerations of mobile
guidance and hope that PLUS might adopt some of the same concepts.
Specifically:

"The protocol specified in this document assumes that a trustful
relationship between the Throughput Guidance Provider and the TCP
server has been formed"

and

"Throughput guidance is considered confidential information"

and

"The identity of the Mobile Throughput Guidance provider that injects
the throughput guidance header must be explicitly known to the
endpoint receiving the information."

Tom