Re: [multipathtcp] charter discussion

[Behcet Sarikaya <[e-mail]>]

Phil,


On Thu, Apr 6, 2017 at 4:06 AM, <[e-mail]> wrote:

> Behcet,
>
>
>
> The slide was intended to be just a very high-level sketch. In both #1 and
> #2, the objective of the signalling is to get an endpoint’s IP address info
> into the ‘other’ proxy, so the proxy can do address mapping (translation)
> on subsequent packets (including the ACK) so that packets can travel
> between the endpoints. In both #1 and #2, the idea is that this signalling
> is done along with the TCP SYN, so that the connection via the proxies is
> set up with no delay (“0 RTT”)
>

You did not answer the issues I raised below with each option, plus you
raised another one, how does it work in 0 RTT, e.g. in Option #1 or #2?

Regards,

Behcet

>
>
> Best wishes,
>
> phil
>
>
>
> *From:* Behcet Sarikaya [mailto:[e-mail]]
> *Sent:* 31 March 2017 16:53
> *Cc:* Eardley,PL,Philip,TUB8 R <[e-mail]>;
> [e-mail]; Joe Touch <[e-mail]>
> *Subject:* charter discussion
>
>
>
> Hi all,
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>
> Regarding the charter discussions that happened at the mptcp session on
> Thursday March 30, I asked a question but I could not understand the
> answer, let me ask it again.
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>
> In chairs slides page 12, TCP SYN shown in Option 1 and Option 2 actually
> were different although the slides seems to show that they are the same.
>
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> In Option 1, if the proxy sends TCP SYN than is it OK in a conversation
> the destination does not know who the source is?
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> In Option 2, if TCP SYN sent was the original TCP SYN from the source then
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> how come the TCP-ACK goes through the proxy?
>
> A node sending a packet without its address as source address means it is
> router, right?
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> Regards,
>
>
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> Behcet
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