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Periodic outages of D channels on 220T1.5 switches

Feb 01, 2012 07:36 PM PST
Diane Lindgren
Growmark Inc
Has any one experienced periodic outages of their D channels connected through SG220T1 switches? Release 11.2 Build 16.42.84110 Would welcome any thoughts.
Feb 01, 2012 06:53 PM PST
Brian Lynch
ShoreTel, Inc.
are you seeing any alarms (yellow, AIS, etc.) in quick look during the outages or bit errors? May need to involve support for assistance..
Feb 05, 2012 10:30 PM PST
Brian Lynch
ShoreTel, Inc.
Aug 01, 2017 07:42 AM PDT
Marc Gere
Dominos Pizza - Ann Arbor
I'm experiencing the same issue, was anything done about this??
Aug 01, 2017 07:44 AM PDT
Marc Gere
Dominos Pizza - Ann Arbor
We are running 14.2 with SG-220T1 at multiple site and 60% of them have had the issue. Its seems completely random no pattern has been noticed. The quick fix is to reboot the SG-220 or the router thats handing off PRI
Aug 15, 2017 11:09 AM PDT
Steve Kole
Quantum Leap Communications
Make sure your clocking source is set correctly - master/slave. All of our installs require the clocking source to be set as slave.

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