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Re: [multipathtcp] Two proxy scenario (network proxy off path) - far end connection initiation?

<mohamed.boucadair@orange.com> Wed, 29 March 2017 18:11 UTC

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From: mohamed.boucadair@orange.com
To: "philip.eardley@bt.com" <philip.eardley@bt.com>, "multipathtcp@ietf.org" <multipathtcp@ietf.org>
Thread-Topic: Two proxy scenario (network proxy off path) - far end connection initiation?
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Date: Wed, 29 Mar 2017 18:11:08 +0000
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Subject: Re: [multipathtcp] Two proxy scenario (network proxy off path) - far end connection initiation?
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Re-, 

Please see inline.

Cheers,
Med

> -----Message d'origine-----
> De : multipathtcp [mailto:multipathtcp-bounces@ietf.org] De la part de
> philip.eardley@bt.com
> Envoyé : mercredi 29 mars 2017 11:34
> À : multipathtcp@ietf.org
> Objet : [multipathtcp] Two proxy scenario (network proxy off path) - far
> end connection initiation?
> 
> <<I'm now thinking about the scenario where there are two proxies, one in
> the home gateway or Customer Premises Equipment and one in the network,
> both under the control of the operator. And looking at the 'explicit mode'
> scenario, which - if I get it right - means that the network proxy is not
> on the default path. (It's safe to assume that the home gateway proxy is
> on the default path)>>
> 
> In this scenario, do we assume that the TCP connection is always initiated
> by the endpoint that's behind the home gateway, or do we also handle
> connections initiated by the other end?  The former is the main case

[Med] The MPTCP connection can be initiated from both ends.

> 
> I couldn't see anything about the latter in the drafts - think I remember
> some discussion on the list, but I can't find it (please just send a
> pointer if already resolved)

[Med] You can check slide 7 of https://www.ietf.org/proceedings/95/slides/slides-95-mptcp-1.pdf or https://tools.ietf.org/html/draft-boucadair-mptcp-plain-mode-08#section-4.4.2.  
 
> 
> Thanks
> phil
> 
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