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Re: [multipathtcp] Preparing for Prague meeting - things to delete or add to MPTCP protocol bis

Rao Shoaib <rao.shoaib@oracle.com> Thu, 09 July 2015 16:19 UTC

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Date: Thu, 09 Jul 2015 09:19:27 -0700
From: Rao Shoaib <rao.shoaib@oracle.com>
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Subject: Re: [multipathtcp] Preparing for Prague meeting - things to delete or add to MPTCP protocol bis
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On 07/06/2015 11:01 AM, philip.eardley@bt.com wrote:
>
> Looking at the (expired) draft summarising the various implementations,
>
> https://tools.ietf.org/html/draft-eardley-mptcp-implementations-survey-02
>
> one thing that may be worth discussing is whether we need both 4 & 8 
> byte Data ack & DSS
>
+1
Choosing one (8 byte ack) would make implementation as well as debugging 
easier. What is the purpose of providing two options.

Shoaib
>
> <<   All implementations support 4 bytes "Data ACK" and "Data sequence
>    number" fields, and will interoperate with an implementation sending
>    8 bytes.  Implementation 1 uses only 4 bytes fields; if an
>    implementation sends an 8 byte data sequence number it replies with a
>    4 byte data ack.
>
> >>
>

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