Re: DUNDi

["Stastny Richard" <Richard.Stastny@oefeg.at>]

>But Dundi isn't the solution for this, it certainly won't do what you're
>hoping it will. 
 
Thanks for reminding me, I forgot to mention exactly this in my last post:
 
DUNDi is NOT a replacement to (public) ENUM in e164.arpa, it is
orthogonal to ENUM in the same ways as Carrier ENUM, 
 
DUNDi is a replacement for Carrier ENUM, to be precise for 
the confederation shared variant (see ETSI TS 102 055 "Infrastructure ENUM",
and it is the provider putting the data in. In User ENUM I may change
may VoIP provider by pointing to entry to another provider (DIY NP ;-),
in Carrier ENUM and DUNDi I need to go through the normal NP process.
 
In this variant a con-federation agrreas to put their numbers in a commonly 
agreed upon DNS tree (eg e164.org or e164.info), so it contains only the part of
the E.164 numbering space which is used by the con-federation.
 
In e164.info this is done by axfer the local DNS up to the common DNS, so basically
no need to invent a new protocol with scalability problems. DNS is already proven to scale.
The "GPA" is very similar, BTW.
 
Richard
 

	-----UrsprÃngliche Nachricht----- 
	Von: Duane [mailto:duane@e164.org] 
	Gesendet: Sa 23.10.2004 13:46 
	An: Forrest W. Christian 
	Cc: VoIP Peering 
	Betreff: Re: DUNDi
	
	

	Forrest W. Christian wrote:
	
	> The DUNDi system seems a little better in this regard since the
	> decentralized nature permits me to "announce" my telco numbers to the VoIP
	> world without involving the Telco.  Of course, if enum is structured such
	> that I can change my records without involving the telco, that advantage
	> evaporates.
	
	But Dundi isn't the solution for this, it certainly won't do what you're
	hoping it will. The question is how long before script kiddies start
	announcing your route to other people to some sex chat line, rerouting
	political numbers to their opposition or any other number of fun things
	to do on a friday night when you have no life.
	
	The fact is without some form or centralisation or checks and balances
	you can't trust anyone outside your little ring of immediate friends.
	This means that dundi will only be useful for voip providers and
	enterprise wanting an easish way to distribute their dialing plan, it
	won't be useful in the medium to long term for the general public.
	
	What's more the decentralised nature means each call probes every
	server, so instead of probing one server and getting an authoritive
	response it could be bounced across the entire network for every call,
	short term this would have no impact, what about 1 billion calls, or 10
	billion calls, potentially there could be more traffic for finding
	numbers then actually voice calls.
	
	--
	
	Best regards,
	  Duane
	
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