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.
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.