Forum releases IPv6 specs for broadband CPE

John C. Tanner
18 Mar 2011
00:00
 
The specs come after last month’s news that the IANA allocated the last /8 blocks of IPv4 addresses to the world’s five RIRs.
 
“That was lucky timing for us,” said Mersh. “When we started working on this a couple of years ago, we were aiming for it to come out around now. We’d love to say we timed it that way on purpose, but really it just turned out that way.”
 
But even with the BroadbandSuite 4.0 spec, broadband service providers still have to work out a suitable migration strategy to IPv6, which will take time. “There’s plenty of legacy CPE out there, and no carrier is going to swap that out all at once,” Mersh said.
 
He added that IPv6 migration will inevitably vary between different markets and service providers.
 
“Every country is different, and every stack of v4 addresses left is different from one region to another,” Mersh explained. “What’s happening in China, for example, is being driven by a lot of new deployments, a lot of new customers coming into broadband networks, while the same thing isn’t true in the US or Europe. So from what we’re seeing, coexistence of v4 and v6 is going to happen for a long time.”
 
The Broadband Forum is also working on migration guidelines for broadband operators that take those different scenarios into account, Mersh said.
 
“We’re developing a way to have flexible solutions for migration paths, because there’s still discussions around things like carrier-grade NATs [Network Address Translators], for example, in the IETF,” he said.
 
“Some people will go down that path. And there will also be some trading of v4 addresses as well, and other carriers will make more aggressive moves to v6.”
 

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