[147327] in North American Network Operators' Group
Re: GPON Vendors
daemon@ATHENA.MIT.EDU (Mark Tinka)
Wed Dec 7 03:47:25 2011
From: Mark Tinka <mtinka@globaltransit.net>
To: Owen DeLong <owen@delong.com>
Date: Wed, 7 Dec 2011 16:45:59 +0800
In-Reply-To: <50C7EBA9-A4E7-46E2-BEBA-F6C11005E8E6@delong.com>
Cc: nanog@nanog.org
Reply-To: mtinka@globaltransit.net
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
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On Wednesday, December 07, 2011 03:43:20 PM Owen DeLong=20
wrote:
> In any such vendor choice, I'd say make sure that they
> have workable IPv6 before making any major investments.
> Otherwise, you've got a dead-end platform that won't
> serve you very well for very many years.
GPON deployment for FTTH tends to be, really, an Ethernet=20
switch. There is just additional intelligence thrown in to=20
keep the thing from being suicidal at Layer 2 for that many=20
customers when doing typical consumer broadband.
If you're using the GPON AN as as a regular switch, i.e.,=20
one VLAN per customer, then you can roll IPv6 to your FTTH=20
customers just as you would on a Cisco Catalyst switch, for=20
example.
But most operators are using them for broadband deployments,=20
and the split horizon mechanisms implemented as part of the=20
Broadband Forum spec. for GPON make it unintuitive that v6=20
be supported off the bat for DHCP and PPPoE. Of course, this=20
isn't rocket science, and just needs to be added in software=20
=2D a problem many vendors are suffering from. As we do with=20
all of them, keep pushing for support for the features you=20
need in v6. Just make sure you don't buy a dud.
Mark.
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