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Re: draft-dolson-plus-middlebox-benefits (was RE: Review of draft-mm-wg-effect-encrypt-09)

Brian E Carpenter <brian.e.carpenter@gmail.com> Wed, 12 April 2017 02:26 UTC

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Subject: Re: draft-dolson-plus-middlebox-benefits (was RE: Review of draft-mm-wg-effect-encrypt-09)
To: Nick Hilliard <nick@foobar.org>
References: <787AE7BB302AE849A7480A190F8B933009E4B818@OPEXCLILMA3.corporate.adroot.infra.ftgroup> <11843452-d76d-50e3-c162-155f4d1621e2@cs.tcd.ie> <787AE7BB302AE849A7480A190F8B933009E4B953@OPEXCLILMA3.corporate.adroot.infra.ftgroup> <20170411120303.5128273.2297.7062@sandvine.com> <36f11093-8283-dbcc-68d5-0c7f4267988c@gmail.com> <58ED2651.8040109@foobar.org>
Cc: "ietf@ietf.org" <ietf@ietf.org>
From: Brian E Carpenter <brian.e.carpenter@gmail.com>
Organization: University of Auckland
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Date: Wed, 12 Apr 2017 14:26:35 +1200
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On 12/04/2017 06:54, Nick Hilliard wrote:
> Brian E Carpenter wrote:
>> BTW I don't see ECMP or load balancing listed in section 3. Those
>> seem to be major applications of transport layer snooping.
> 
> no, any load balancing which needs to scale needs to be stateless, so
> you don't want session based mechanisms handling this.

Server load balancing is often stateful, and even stateless SLB
usually includes transport info in the hash. Or so I learned while
working on RFC 7098. People who know also informed me that ECMP
sometimes (not always) uses transport info (see RFC 6438).

   Brian

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