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Re: [tram] TURN server discovery (please discuss!)

"Tirumaleswar Reddy (tireddy)" <tireddy@cisco.com> Fri, 21 March 2014 07:37 UTC

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From: "Tirumaleswar Reddy (tireddy)" <tireddy@cisco.com>
To: Cb B <cb.list6@gmail.com>
Thread-Topic: [tram] TURN server discovery (please discuss!)
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Date: Fri, 21 Mar 2014 07:36:56 +0000
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Cc: Simon Perreault <simon.perreault@viagenie.ca>, "tram@ietf.org" <tram@ietf.org>
Subject: Re: [tram] TURN server discovery (please discuss!)
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From: Cb B [mailto:cb.list6@gmail.com] 
Sent: Thursday, March 20, 2014 10:49 PM
To: Tirumaleswar Reddy (tireddy)
Cc: Simon Perreault; tram@ietf.org
Subject: RE: [tram] TURN server discovery (please discuss!)


On Mar 20, 2014 7:48 AM, "Tirumaleswar Reddy (tireddy)" <tireddy@cisco.com> wrote:
>
> Just adding a data point, mobile networks generally don't use dhcp so that limits the scope of dhcp as an option.
>
> I anticipate mobile networks will need TURN.
>
> CB
>
> [TR]
>
>  
>
> we had discussed similar problem to discover PCP servers in Mobile Networks (http://tools.ietf.org/html/draft-chen-pcp-mobile-deployment-04#section-4) sometime back. Based on the discussion
>
> 1)DHCPv6 stateless configuration information is supported by 3GPP specification (http://tools.ietf.org/html/rfc6459#section-5.2)
>
> 2)Since DHCPv4 is not widely used, possible solutions discussed to solve the problem are anycast, enhancing PCO to provide TURN {PCP} server IP address
>
>  
>
> -Tiru 
> I dont know any deployed mobile network where those will work today.
> Today with IMS in mobile networks, NAPTR is used in DNS, so in would suggest that as a viable path 
> CB

Even the TURN discovery draft is using NAPTR http://tools.ietf.org/html/draft-patil-tram-turn-serv-disc-00#section-4.2; But DHCP is used to get the domain name to be used for TURN service discovery. 
Is there any other mechanism to get the domain name ?

-Tiru

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