[afripv6-discuss] The African IPv6 Task Force

[Mark Tinka]

On Sunday, January 29, 2012 11:22:15 PM Mark van Wyk wrote:

> CPE will probably be the biggest stuff up of all! It's
> also the last frontier, and without the customers,
> there's not much point in IPv6.

Personally, I think Access networks is where we need to 
solve a lot of problems now. v6 in the Core is done & 
dusted, nothing new here.

But the Access is the main issue now.

More to Hisham's question re: the DSLAM; in theory, one 
would expect DSLAM's to be Layer 3 unaware, as they're 
mostly Layer 1 and Layer 2 devices. This tends to be the 
case, for example, if your DSLAM is some kind of GPON or 
Ethernet-based DSLAM and you're separating customers on a 
per-VLAN basis.

However, when you're offering broadband (DHCPv6 or PPPoEv6), 
the AN (Access Node) has to be v6-aware at Layer 2, 
especially since some architectures like GPON implement 
split horizons, and hacks to ND (ARP for v4), MLD (IGMP for 
v4), e.t.c., are needed in order to maintain broadband 
solutions for v6 on today's AN's.

Mark.
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