The cfm version command switches an Ethernet CFM version between IEEE 802.1ag Draft 7 and IEEE Standard 802.1ag-2007.
The undo cfm version command restores the default Ethernet CFM version.
By default, IEEE Standard 802.1ag-2007 is enabled on a device.
| Parameter | Description | Value |
|---|---|---|
| draft7 | Indicates IEEE 802.1ag Draft 7. | - |
| standard | Indicates IEEE Standard 802.1ag-2007. | - |
Usage Scenario
You need to switch IEEE 802.1ag between the two versions when the device supports both IEEE 802.1ag Draft 7 and IEEE Standard 802.1ag-2007.
Precautions
To ensure that CFM works properly, all devices on the entire network must run IEEE 802.1ag of the same version. During switching between IEEE 802.1ag Draft 7 and IEEE Standard 802.1ag-2007, all 802.1ag functions are unavailable. You can run the cfm enable (system view) command to enable CFM globally only after all devices use the same IEEE 802.1ag version.