3GPP v6-only IMS [RE: WG Last Call: 3GPP Analysis Document]

[Pekka Savola <pekkas@netcore.fi>]

On Thu, 2 Oct 2003, Soliman Hesham wrote:
[...]
> => I'd love to do that. However, how does this happen in 
> practice? Let's say 3GPP went with IPv6 only and 3GPP2
> did dual stack or IPv4 only for their IMS. And let's 
> say that some operators decide to enable IPv4 only
> in their 3GPP2 networks, or in their fixed broadband networks.
> Now a 3GPP operator has three options:
> 
> 1. Tell the others to upgrade to v6
> 2. Tell its subscribers that they can't contact certain
>    networks.
> 3. Provide a mechanism that allows subscribers to talk
>    to those v4 only people. 
> 
> 1) is unrealistic. If it can be done, then why hasn't
> it been done already? 2) doesn't seem realistic either
> from a commercial point of view.

If 3GPP2 would deliberately choose to build a non-interopreable network, 
would it be 3GPP's fault?

The only _realistic_ choices for 3GPP2 would seem to be IPv6-only or
dual-stack.  And in both cases, there would be a common protocol, IPv6 --
no problem.

-- 
Pekka Savola                 "You each name yourselves king, yet the
Netcore Oy                    kingdom bleeds."
Systems. Networks. Security. -- George R.R. Martin: A Clash of Kings