Re: [Banana] diff (banana load distribution, next-hop selection of multipath)

Joe Touch <touch@isi.edu> Fri, 10 February 2017 17:42 UTC

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To: "Zuojing (2012 Laboratories)" <jing.zuo@huawei.com>, Margaret Cullen <margaretw42@gmail.com>
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From: Joe Touch <touch@isi.edu>
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Date: Fri, 10 Feb 2017 09:41:33 -0800
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Cc: Mingui Zhang <zhangmingui@huawei.com>, "banana@ietf.org" <banana@ietf.org>
Subject: Re: [Banana] diff (banana load distribution, next-hop selection of multipath)
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Hi, Jing (et al.),


On 2/9/2017 6:10 PM, Zuojing (2012 Laboratories) wrote:
> Dear Margaret and all,
>
> It's true that we need to exempt end-to-end MPTCP flows from BANANA processing in case the sub-flows of MPTCP are split by BANANA once again.

I disagree.

MPTCP flows are no different than a single TCP connection; both assume a
single set of "path" properties, and both could be affected by use of
multipath.

However, both may need to use multipath to have the resources needed,
e.g., to complete a transfer quickly.

AFAICT, both should be treated the same for the purposes of BANANA, and
neither one should have a blanket exemption.

Joe