To configure link monitoring on an Ethernet port

Steps

Note: Ethernet link monitoring works between directly-connected Ethernet ports and monitors link level errors, such as Ethernet frame errors, and for a subset of MDAs, Ethernet symbol errors as well. In the event that error levels exceed configured thresholds, a signal degradation error log, or in more severe cases, a signal failure error log can be generated. In the case of signal failure error, the peer port may be notified, and the local (and peer) ports may be disabled until the error log is manually cleared.

Satellite ports support virtually all OAM functionality. The only exception is that no EFM-OAM link monitoring is available for such ports.

 
1 

Choose Equipment from the navigation tree view selector. The navigation tree displays the Equipment view.

2 

Right-click the device on which you want to configure link monitoring and select Properties. The Network Element (Edit) form opens.

3 

Navigate to the port on which you want to configure link monitoring. The path is Network→NE→Shelf→Card Slot→Daughter Card Slot→Port n/n/n.

4 

Right-click on the Port icon and choose Properties. The Physical Port (Edit) form opens.

5 

Click on the Ethernet tab and then on the EFM-OAM tab.

6 

Configure the Administrative State to Enabled.

7 

Configure the Transmit Interval (x100ms) and Multiplier (Intervals) parameters to determine the transmit rate for the link monitoring PDUs.

8 

Configure the Dying Gasp Notify and Critical Event Notify parameters to determine the reporting of a signal failure to the far-end device.

9 

Configure the parameters in the Link Event Configuration panel.

The general parameters in this panel are used to enable the link monitoring capability and to determine the port’s response to local and remote signal degradation (SD) and signal failure (SF) events. The parameters in the Errored Frame, Errored Frame Period, Errored Frame Seconds Summary, and Errored Frame Symbols sub-panels are used to enable and configure their respective link monitoring variants. These monitoring variants can operate concurrently.

10 

Expand the Counters panel to view link monitoring communications counters between the local and peer Ethernet ports. These counters are not automatically updated. Click Refresh to resynchronize the MIBs related to these counters.

11 

Expand the Peer Information panel to view information learned from PDUs sent by the directly-connected peer. The Peer Vendor OUI attribute is used by routers to correctly interpret the meaning of attributes sent during dying gasp or critical events when the peer experiences a signal failure threshold crossing event.

12 

Expand the Link Monitoring Error Event Logs panel to view signal failure and signal degradation event logs issued from local or remote link monitoring peer ports.

Perform the following:

  1. Click Refresh to obtain current event logs from the NE.

  2. Select a log from the list under either the Signal Failure or Signal Degradation sub-tabs and click Properties to view the contents.

  3. Click Clear to clear local, remote, or all the event logs.

    Note:

    Clearing event logs cannot be undone.

13 

Save your changes and close the form.

End of steps