Hi Ian, I think this problem is still valid.
IPv6 transition might be a relatively long process. Different requirements may be raised as time goes on. When remained IPv4 is quite scare, dynamic manage management of IPv4-IPv6 bindings might necessary. As the scale of IPv6 network enlarges and the number of recycled IPv4 addresses increases, static configuration of v4-v6 binding would be more convenient. Rather than replacing CPEs all the time, I would prefer a CPE prepares for those potential requirements. And a logic for mechanisms selecting is necessary. Thanks, Qi On Aug 20, 2014, at 8:20 PM, <[email protected]> <[email protected]> wrote: > Hi, > > At the last Softwire meeting in Toronto, I presented a question around > whether the expired Unified CPE draft needs to be brought back to life > (http://www.ietf.org/archive/id/draft-ietf-softwire-unified-cpe-01.txt). > There was little support for this during the meeting, so I’m taking it to the > list to gauge if there’s wider interest in this problem. > > Currently in our network we are facing some of the problems that the Unified > CPE intended to solve. Specifically, we will have DS-Lite, lw4o6 and public > 4over6 in the operator network. The deployed HGWs may support DS-Lite only > (RFC6204 compliant ‘off-the-shelf’ CPEs) or may be capable of all three. A > individual HGW may also need to use different mechanisms at different points > in its lifecycle (e.g. lw4o6 initially, but public 4over6 if the customer is > located a full IPv4 address to use with non A+P compatible L4 protocols) > > So, my questions here are whether there are other operators (or vendors) that > see problems of this type in their networks, and is there enough interest to > open up the unified CPE problem again? > > Thanks, > Ian > > _______________________________________________ > Softwires mailing list > [email protected] > https://www.ietf.org/mailman/listinfo/softwires
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