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Motorola GPON deployments

daemon@ATHENA.MIT.EDU (Josh V. Hoppes)
Fri Oct 21 11:21:33 2011

From: "Josh V. Hoppes" <jhoppes@cfunet.net>
To: "nanog@nanog.org" <nanog@nanog.org>
Date: Fri, 21 Oct 2011 15:18:38 +0000
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org

Hello NANOG,

We are currently in the process of rolling out a Motorola GPON solution and=
 running into some hiccups and wanted to see if we were doing something uni=
que or if anyone else has run into the issue and we just haven't found the =
right solution.

Our configuration has the OLTs using single tagged VLANs down to each custo=
mer ONT, rather than using Q in Q connections. This VLAN is shared among al=
l customers that terminate at a single site, which may have 1-2 OLTs sharin=
g that same VLAN. This VLAN is then carried back via switching to our core =
equipment which handles routing. We have noticed that malfunctioning custom=
er equipment have generated loops on the network which has caused unusual f=
orwarding problems in the OLT, and many of the ONTs we are in the process o=
f deploying, 1400GTI, don't include the ability to detect these loops.

If anyone wants more information feel free to follow up with me off list. W=
e are hoping we aren't the only ones attempting this and can find a sane so=
lution to the issue.

Josh Hoppes
Cedar Falls Utilities



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