Subject: Re: [Dots] [tsvwg] Best transport selection during an attack?

From: "Tirumaleswar Reddy (tireddy)" <[email-masked]>
Date: Wed, 4 Nov 2015 05:06:31 +0000

> -----Original Message-----
> From: Dots [mailto:[email-masked]] On Behalf Of Roland Dobbins
> Sent: Wednesday, November 04, 2015 10:10 AM
> To: [email-masked]
> Subject: Re: [Dots] [tsvwg] Best transport selection during an attack?
> 
> On 4 Nov 2015, at 13:32, Tirumaleswar Reddy (tireddy) wrote:
> 
> > [TR] DOTS client can possibly use "Happy Eyeball mechanism" to try
> > both UDP and TCP. If UDP is not blocked then it will receive response
> > from the DOTS server and can terminate the TCP connection.
> 
> Some type of fallback/alternate transport selection mechanism is definitely in
> order, IMHO.
> 
> There's also the question of fallback/selection between IPv4 and IPv6, in
> scenarios where both are available to the DOTS agents in question.

Browsers already use "Happy Eyeball mechanism" https://tools.ietf.org/html/rfc6555 for selection between IPv6 and IPv4, DOTS signaling protocol can use the same mechanism. 

-Tiru

> 
> -----------------------------------
> Roland Dobbins <[email-masked]>
> 
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