EFM OAM uses an in-band link layer OAM packet exchange between the system EFM interfaces and OAM-capable CPEs, such as EtherXtend and EtherXtend Lite. The OAM-capable CPE functions as a remote peer to provide event notification. The EFM and N2N bond groups are Ethernet-like interfaces and support EFM OAM.
When EFM OAM is configured on a EFM or Ethernet-like interface in active mode, the discovery process is started. If the interface peer also has OAM enabled, the discovery process continues until the peer is located. If the discovery process does not find a peer, the active interface continues sending the initial Information OAMPDU once a second until a peer OAM-enabled CPE device responds.
To update the displayed settings, click the Refresh button.
To configure a passive OAM interface, select the interface and click Add Passive. After creating the interface you can modify it by clicking the Port name.
To configure an active OAM interface, select the interface and click Add Active. After creating the interface you can modify it by clicking the Port name.
To delete an OAM profile for a port, select the port then click Delete.
Slot Displays the slot number and the card description.
Profile
Port |
A unique value for each interface. |
Group Oper Status |
Indicates the operational status of bond group on the Ethernet port. |
Group Admin Status |
The administrative status of the bond group interface. Up: The interface is enabled and up, and the status of the interface should become standby or operational. Down: The interface is disabled and down, and the status of the interface whould become shutdown. |
OAM Assignment |
Whether this interface has OAM enabled. |
Mode |
This object configures the mode of OAM operation for this Ethernet-like interface. OAM on Ethernet interfaces may be in 'active' mode or 'passive' mode. |
Error Symbol Period Window-H |
The two objects ErrSymPeriodWindowHi and ErrSymPeriodLo together form an unsigned 64-bit integer representing the number of symbols over which this threshold event is defined. This is defined as ErrSymPeriodWindow = ((232)ErrSymPeriodWindowHi) + ErrSymPeriodWindowLo. If ErrSymPeriodThreshold symbol errors occur within a window of ErrSymPeriodWindow symbols, an Event Notification OAMPDU should be generated with an Errored Symbol Period Event TLV indicating that the threshold has been crossed in this window. The default value for ErrSymPeriodWindow is the number of symbols in one second for the underlying physical layer. |
Error Symbol Period Window-L |
The two objects ErrSymPeriodWindowHi and ErrSymPeriodWindowLo together form an unsigned 64-bit integer representing the number of symbols over which this threshold event is defined. This is defined as ErrSymPeriodWindow = ((232)ErrSymPeriodWindowHi) + ErrSymPeriodWindowLo. If ErrSymPeriodThreshold symbol errors occur within a window of ErrSymPeriodWindow symbols, an Event Notification OAMPDU should be generated with an Errored Symbol Period Event TLV indicating that the threshold has been crossed in this window. The default value for ErrSymPeriodWindow is the number of symbols in one second for the underlying physical layer. |
Symbol Period Error Threshold-H |
"The two objects ErrSymPeriodThresholdHi and ErrSymPeriodThresholdLo together form an unsigned 64-bit integer representing the number of symbol errors that must occur within a given window to cause this event. This is defined as ErrSymPeriodThreshold = ((232) * ErrSymPeriodThresholdHi) + ErrSymPeriodThresholdLo If ErrSymPeriodThreshold symbol errors occur within a window of dot3OamErrSymPeriodWindow symbols, an Event Notification OAMPDU should be generated with an Errored Symbol Period Event TLV indicating that the threshold has been crossed in this window. The default value for dot3OamErrSymPeriodThreshold is one symbol errors. If the threshold value is zero, then an Event Notification OAMPDU is sent periodically (at the end of every window). This can be used as an asynchronous notification to the peer OAM entity of the statistics related to this threshold crossing alarm. |
Symbol Period Error Threshold-L |
The two objects ErrSymPeriodThresholdHi and ErrSymPeriodThresholdLo together form an unsigned 64-bit integer representing the number of symbol errors that must occur within a given window to cause this event. This is defined as ErrSymPeriodThreshold = ((232) * ErrSymPeriodThresholdHi) + ErrSymPeriodThresholdLo If ErrSymPeriodThreshold symbol errors occur within a window of ErrSymPeriodWindow symbols, an Event Notification OAMPDU should be generated with an Errored Symbol Period Event TLV indicating that the threshold has been crossed in this window. The default value for ErrSymPeriodThreshold is one symbol error. If the threshold value is zero, then an Event Notification OAMPDU is sent periodically (at the end of every window). This can be used as an asynchronous notification to the peer OAM entity of the statistics related to this threshold crossing alarm. |
Symbol Period Error Event Notify |
If true, the OAM entity should send an Event Notification OAMPDU when an Errored Symbol Period Event occurs. By default, this object should have the value true for Ethernet-like interfaces that support OAM. If the OAM layer does not support Event Notifications (as indicated via the FunctionsSupported attribute), this value is ignored. |
Errored Frame Period Window |
The number of frames over which the threshold is defined. The default value of the window is the number of minimum size Ethernet frames that can be received over the physical layer in one second. If ErrFramePeriodThreshold frame errors occur within a window of dot3OamErrFramePeriodWindow frames, an Event Notification OAMPDU should be generated with an Errored Frame Period Event TLV indicating that the threshold has been crossed in this window. |
Errored Frame Period Threshold |
The number of frame errors that must occur for this event to be triggered. The default value is one frame error. If the threshold value is zero, then an Event Notification OAMPDU is sent periodically (at the end of every window). This can be used as an asynchronous notification to the peer OAM entity of the statistics related to this threshold crossing alarm. If ErrFramePeriodThreshold frame errors occur within a window of ErrFramePeriodWindow frames, an Event Notification OAMPDU should be generated with an Errored Frame Period Event TLV indicating that the threshold has been crossed in this window. |
Errored Frame Period Notify |
If true, the OAM entity should send an Event Notification OAMPDU when an Errored Frame Period Event occurs. By default, this object should have the value true for Ethernet-like interfaces that support OAM. If the OAM layer does not support Event Notifications (as indicated via the FunctionsSupported attribute), this value is ignored. |
Errored Frame Window |
The amount of time (in 100ms increments) over which the threshold is defined. The default value is 10 (1 second). If ErrFrameThreshold frame errors occur within a window of ErrFrameWindow seconds (measured in tenths of seconds), an Event Notification OAMPDU should be generated with an Errored Frame Event TLV indicating that the threshold has been crossed in this window |
Errored Frame Threshold |
The number of frame errors that must occur for this event to be triggered. The default value is one frame error. If the threshold value is zero, then an Event Notification OAMPDU is sent periodically (at the end of every window). This can be used as an asynchronous notification to the peer OAM entity of the statistics related to this threshold crossing alarm. If ErrFrameThreshold frame errors occur within a window of ErrFrameWindow (in tenths of seconds), an Event Notification OAMPDU should be generated with an Errored Frame Event TLV indicating the threshold has been crossed in this window. |
Errored Frame Notify |
If true, the OAM entity should send an Event Notification OAMPDU when an Errored Frame Event occurs. By default, this object should have the value true for Ethernet-like interfaces that support OAM. If the OAM layer does not support Event Notifications (as indicated via the FunctionsSupported attribute), this value is ignored. |
Errored Frame Seconds Summary Window |
The amount of time (in 100 ms intervals) over which the threshold is defined. The default value is 100 (10 seconds). If ErrFrameSecsSummaryThreshold frame errors occur within a window of ErrFrameSecsSummaryWindow (in tenths of seconds), an Event Notification OAMPDU should be generated with an Errored Frame Seconds Summary Event TLV indicating that the threshold has been crossed in this window. |
Errored Frame Seconds Summary Threshold |
The number of errored frame seconds that must occur for this event to be triggered. The default value is one errored frame second. If the threshold value is zero, then an Event Notification OAMPDU is sent periodically (at the end of every window). This can be used as an asynchronous notification to the peer OAM entity of the statistics related to this threshold crossing alarm. If ErrFrameSecsSummaryThreshold frame errors occur within a window of ErrFrameSecsSummaryWindow (in tenths of seconds), an Event Notification OAMPDU should be generated with an Errored Frame Seconds Summary Event TLV indicating that the threshold has been crossed in this window. |
Errored Frame Seconds Summary Notify |
If true, the local OAM entity should send an Event Notification OAMPDU when an Errored Frame Seconds Event occurs. By default, this object should have the value true for Ethernet-like interfaces that support OAM. If the OAM layer does not support Event Notifications (as indicated via the FunctionsSupported attribute), this value is ignored. |
Dying Gasp Enable |
If true, the local OAM entity should attempt to indicate a dying gasp via the OAMPDU flags field to its peer OAM entity when a dying gasp event occurs. The exact definition of a dying gasp event is implementation dependent. If the system does not support dying gasp capability, setting this object has no effect, and reading the object should always result in 'false'. By default, this object should have the value true for Ethernet-like interfaces that support OAM. If the OAM layer does not support Event Notifications (as indicated via the FunctionsSupported attribute), this value is ignored. |
Critical Event Enable |
If true, the local OAM entity should attempt to indicate a critical event via the OAMPDU flags to its peer OAM entity when a critical event occurs. The exact definition of a critical event is implementation dependent. If the system does not support critical event capability, setting this object has no effect, and reading the object should always result in 'false'. By default, this object should have the value true for Ethernet-like interfaces that support OAM. If the OAM layer does not support Event Notifications (as indicated via the FunctionsSupported attribute), this value is ignored. |
March 24, 2012