Re: [Softwires] Stateless implementation plan

Rémi Després <despres.remi@laposte.net> Tue, 07 February 2012 15:28 UTC

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Subject: Re: [Softwires] Stateless implementation plan
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Le 2012-02-07 à 16:05, Cameron Byrne a écrit :
> Are the map and 4rd solutions deployable for existing networks that do not have reserves  of ipv4 ?  My assumption is that these solutions target existing networks that have meaningful growth and they need a v6 solution.
> 

NAT64 does needs some IPv4 space to work.
MAP/4rd is in the same position, with static sharing instead of dynamic.
> If yes, how? Any pointers within the reams of drafts I should look for?
> 
IMHO, the easiest entry in the stateless work of Softwire is the unified draft (tools.ietf.org/html/draft-despres-softwire-4rd-u-03).

> In my brief and simple skimming, it appears to me that setting up one of these solutions would require me to collapse my existing network to harvest back the addresses so that they may be redeployed in map. 
> 
> What would the deployment process be for an address exhausted network of 10 million subs with 10% annual growth be? 
> 
This has to be looked at compared with NAT64 requirements, with the understanding that a mobile device that supports IPv6 would have most of its traffic in IPv6, and therefore needs only a few IPv4 ports.
(If troubled by not enough IPv4 ports, its ASPs should better become IPv6-enabled.)

RD

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> Cb
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