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.

Table 1. Notifications Generated by the Optical Transport Manager

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.