I've got several devices in DFM that are reported as unresponsive, but respond to ping from my desk top.
The event ID shows the following
Component XX.204.39.245 [XX-r3550-B01-NER1L-1]
InterfaceName IF-XX-r3550-B01-NER1L-1/28 [Vl1] [XX.204.39.245]
Any thoughts as to why these are still reported although the device is up.