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The optics on the CNS switch were changed yesterday afternoon. This resolved the problem. On 06/22/2015 10:26 AM, Steve Howard wrote: > FYI: There is a problem with the 10Gig link between the CNS switch > (Ten0/9) and the Juniper switch (xe-0/0/29). > > The Juniper reports low receive light level and drops/restarts the > link. After a few rounds of this, the CNS switch err-disable's the port > due to link flapping. Our friends at Cologix worked on the fibers over > the weekend, but there was no improvement. We'll ship some new optics > for the CNS switch to 511. Does anybody near 511 have a spare 10Gig > optic for the Juniper switch that can be swapped in temporarily to help > troubleshoot the problem? >