Notifications and symptomatic events

Notifications Generated by the Optical Transport Manager lists the notifications generated by the Optical Transport Manager for optical network elements and network connections for SONET/SDH networks.
Notifications Generated by the
Managed Element
Notification
Condition
Card or Equipment
Down
A Card or Equipment device in a network element has failed.
PTP
Down
A PTP on a network element has failed.
PTPHardFailureCondition
A hard failure indication has been observed on this PTP.
OpticalNetworkElement
Down
The EMS has lost management connection with the NE.
TopologicalLink
Down
No traffic is passing through the link in one or both directions and symptoms may indicate fiber failure.
SignalDegrade
Traffic is passing through the link but symptoms indicate that the signal is degraded.
DropSideTopologicalLink
Down
The drop side topological link is down.
SignalDegrade
A signal degrade (soft failure) occurs when the signal error rate reaches a threshold. The impact is a function of the device specification; however, if there is an impact, it will be very similar to Fiber Cut.
Conduit
Down
No traffic is passing through the link in one or both directions
and symptoms may indicate fiber failure. Physical failure of the link bundle that comprises topological links.
BBTopologicalLink
Down
No traffic is passing through the unmanaged segment in one or both directions.
SignalDegrade
Traffic is passing through the link but symptoms indicate that the signal is degraded.
BBDropSideTopologicalLink
Down
The edge, unmanaged segment is down.
SignalDegrade
A signal degrade (soft failure) occurs when the signal error rate reaches a threshold. The impact is a function of the device specification; however, if there is an impact, it will be very similar to Fiber Cut.
HighOrder_Trail
TrailDown
This facility is down.
TrailAtRisk
One element of a protection group is down. Communication continues, but without the security of redundancy.
HighOrder_Circuit
ServiceUnavailable
This facility is down. May be a result of TransportOutgoingFail, TransportIncomingFail, or TransportFail.
ServiceAtRisk
One element of a protection group is down. Communication continues, but without the security of redundancy.
EMS
Disconnected
There is a loss of communication with the EMS.
EmsAdapterNotRunning
The
VMware Smart Assurance
EMS adapter has shut down.
EmsAdapterDisconnected
The
VMware Smart Assurance
EMS adapter is not responding.
The following sections describe the root-cause problems and related symptoms for some optical network elements and network connections.