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

Christian Huitema <huitema@microsoft.com> Tue, 26 July 2016 17:46 UTC

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From: Christian Huitema <huitema@microsoft.com>
To: "Smith, Kevin, (R&D) Vodafone Group" <Kevin.Smith@vodafone.com>, "Eggert, Lars" <lars@netapp.com>, Mikael Abrahamsson <swmike@swm.pp.se>
Thread-Topic: [Spud] No. Operators don't need SPUD for mobile network management
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Date: Tue, 26 Jul 2016 17:46:17 +0000
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Cc: Frode Kileng <frodek@tele.no>, "spud@ietf.org" <spud@ietf.org>
Subject: Re: [Spud] No. Operators don't need SPUD for mobile network management
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On Monday, July 25, 2016 3:49 AM, Kevin Smith 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.

Isn't that already available from the modem?

> For sender to network: If there are ways to safely indicate open/close, 'drop
> me/queue me when I hit congestion', and 'I am a retransmitted packet' then
> that would be of interest too. But I fully respect the privacy concerns that were
> raised at the BoF, and would be happy to see a limited scope accordingly.

We are most likely to get consensus on simple issues like DDOS prevention and NAT traversal. The endpoints cannot really fight DDOS all by themselves, the damage is already done by the time the packets reach them, so this is certainly an area where there is a desire to collaborate. Currently the endpoints keep sending "keep alive" traffic every 15 to 30 seconds to maintain the state in the NAT and firewalls; finding something better would be nice.

-- Christian Huitema

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