Detecting Minor Link Events
Context
If an EFM entity receives a link event, it sends an Event Notification OAMPDU to notify the remote EFM entity of the event. The EFM entity also sends a trap to an NMS. After receiving the trap on the NMS, an administrator can determine the network status and take necessary measures.
Select one or more detection methods to monitor links based on your needs.
EFM can be configured on Layer 2 and Layer 3 Ethernet interfaces. By default, an Ethernet interface works in Layer 2 mode. Before configuring EFM on a Layer 3 Ethernet interface, switch the Ethernet interface to Layer 3 mode.
Procedure
- Detecting errored code events
Run system-view
The system view is displayed.
Run efm enable
EFM is enabled globally.
Run interface interface-type interface-number
The view of the interface at one end of the link is displayed.
(Optional) On an Ethernet interface, run undo portswitch
The interface is switched to Layer 3 mode.
By default, an Ethernet interface works in Layer 2 mode.
Only the S5720-EI, S5720-HI, S5730-HI, S5731-H, S5731-S, S5731S-H, S5731S-S, S5732-H, S6720-EI, S6720-HI, S6720S-EI, S6730-H, S6730S-H, S6730-S, and S6730S-S support switching between Layer 2 and Layer 3 modes.
Run efm error-code period period
The period for detecting EFM errored codes is set.
By default, the period for detecting errored codes on an interface is 1 second.
Run efm error-code threshold threshold
The threshold for detecting EFM errored codes is set.
By default, the threshold for detecting errored codes on an interface is 1.
Run efm enable
EFM is enabled on the interface.
Run efm error-code notification enable
The interface is enabled to detect EFM errored codes.
By default, an interface is not enabled to detect EFM errored codes.
- Detecting errored frame events
Run system-view
The system view is displayed.
Run efm enable
EFM is enabled globally.
Run interface interface-type interface-number
The view of the interface at one end of the link is displayed.
(Optional) On an Ethernet interface, run undo portswitch
The interface is switched to Layer 3 mode.
By default, an Ethernet interface works in Layer 2 mode.
Only the S5720-EI, S5720-HI, S5730-HI, S5731-H, S5731-S, S5731S-H, S5731S-S, S5732-H, S6720-EI, S6720-HI, S6720S-EI, S6730-H, S6730S-H, S6730-S, and S6730S-S support switching between Layer 2 and Layer 3 modes.
Run efm error-frame period period
The period for detecting EFM errored frames is set.
By default, the period for detecting errored frames on an interface is 1 second.
Run efm error-frame threshold threshold
The threshold for detecting EFM errored frames is set.
By default, the threshold for detecting errored frames on an interface is 1.
Run efm enable
EFM is enabled on the interface.
Run efm error-frame notification enable
The interface is enabled to detect EFM errored frames.
By default, an interface is not enabled to detect EFM errored frames.
- Detecting errored frame seconds
Run system-view
The system view is displayed.
Run efm enable
EFM is enabled globally.
Run interface interface-type interface-number
The view of the interface at one end of the link is displayed.
(Optional) On an Ethernet interface, run undo portswitch
The interface is switched to Layer 3 mode.
By default, an Ethernet interface works in Layer 2 mode.
Only the S5720-EI, S5720-HI, S5730-HI, S5731-H, S5731-S, S5731S-H, S5731S-S, S5732-H, S6720-EI, S6720-HI, S6720S-EI, S6730-H, S6730S-H, S6730-S, and S6730S-S support switching between Layer 2 and Layer 3 modes.
Run efm error-frame-second period period
The period for detecting EFM errored frame seconds is set.
By default, the period for detecting errored frame seconds on an interface is 60 seconds.
Run efm error-frame-second threshold threshold
The threshold for detecting EFM errored frame seconds is set.
By default, the threshold for detecting errored frame seconds on an interface is 1.
Run efm enable
EFM is enabled on the interface.
Run efm error-frame-second notification enable
The interface is enabled to detect errored frame seconds.
By default, an interface is not enabled to detect errored frame seconds.