Configuring Single-ended Frame Loss Measurement in VLAN Networking

In VLAN networking, CFM is enabled. CCMs are not used to monitor link connectivity, preventing them from using a lot of network bandwidth resources. If frame loss measurement needs to be performed for a link, single-ended frame loss measurement can be configured to monitor the quality of the link.

Context

Single-ended frame loss measurement in VLAN networking can be either on-demand or proactive. On-demand single-ended frame loss measurement is manually initiated for diagnosis of frame loss in a limited time. It can be singular or periodic measurement. Proactive single-ended frame loss measurement is performed continuously to permit proactive reporting of frame loss or performance results.

To implement singular or periodic single-ended frame loss measurement, configure on-demand single-end frame loss measurement in VLAN networking.
To implement continual single-ended frame loss measurement, configure proactive single-ended frame loss measurement in VLAN networking.

Procedure

Configure on-demand single-ended frame loss measurement.
1. Perform the following steps on the devices configured with MEPs at both ends of a link:
  1. Run system-view
    
    The system view is displayed.
  2. Run cfm md md-name
    
    The MD view is displayed.
  3. Run ma ma-name
    
    The MA view is displayed.
  4. Run map vlan vlan-id
    
    The MA is bound to a VLAN.
  5. Run mep mep-id
    
    The MEP is configured.
  6. Run remote-mep mep-id mep-id
    
    The remote MEP ID is configured.
  7. Run mep ccm-send enable
    
    The CCM transmission function is enabled.
  8. Run remote-mep ccm-receive [ mep-id mep-id ] enable
    
    The CCM reception function is enabled.
2. Configure the test instance.
  1. On the receiving device of a link where single-ended frame loss measurement will be implemented, run test-id test-id [ testid-file ]mep mep-id [ description description ]
    
    The test instance is configured on the device.
  2. On the transmitting device of a link where single-ended frame loss measurement will be implemented, run test-id test-id [ testid-file ]mep mep-id [ mac mac-address | remote-mepmep-id ] [ description description ]
    
    The test instance is configured on the device.
3. On the receiving device of a link where single-ended frame loss measurement will be implemented, run loss-measure single-ended receive test-id test-id-value
  
  The LMM reception function is configured on the device.
4. On the device that initiates single-ended frame loss measurement, run loss-measure single-ended send test-id test-id-value interval { 1000 | 10000 } count count-value
  
  Single-ended frame loss measurement is enabled for a VLAN.
5. Run commit
  
  The configuration is committed.
Configure proactive single-ended frame loss measurement.
1. Perform the following steps on the devices at both ends of a link where proactive single-ended frame loss measurement will be implemented:
  1. Run system-view
    
    The system view is displayed.
  2. (Optional) Run y1731 pm-mode enable
    
    Performance management (PM) to manage Y.1731 proactive performance statistics is enabled. PM saves the statistics to generated statistics files and then sends the files to the NMS.
  3. Run cfm md md-name
    
    The MD view is displayed.
  4. Run ma ma-name
    
    The MA view is displayed.
  5. Run map vlan vlan-id
    
    The MA is bound to a VLAN.
  6. Run mep mep-id
    
    The MEP is configured.
  7. Run remote-mep mep-id mep-id
    
    The remote MEP ID is configured.
  8. Run mep ccm-send enable
    
    The CCM transmission function is enabled.
  9. Run remote-mep ccm-receive [ mep-id mep-id ] enable
    
    The CCM reception function is enabled.
  10. (Optional) Run loss-measure single-ended local-ratio-thresholdmep mep-id upper-limit upper-limit lower-limit lower-limit [ 8021p 8021p-value ]
  11. (Optional) Run loss-measure single-ended local-ratio-threshold test-id test-id-value upper-limit upper-limit lower-limit lower-limit
  12. (Optional) Run loss-measure single-ended remote-ratio-threshold mep mep-id upper-limit upper-limit lower-limit lower-limit [ 8021p 8021p-value ]
  13. (Optional) Run loss-measure single-ended remote-ratio-threshold test-id test-id-value upper-limit upper-limit lower-limit lower-limit
2. Configure the test instance.
  1. On the receiving device of a link where single-ended frame loss measurement will be implemented, run test-id test-id [ testid-file ]mep mep-id [ description description ]
    
    The test instance is configured on the device.
  2. On the transmitting device of a link where single-ended frame loss measurement will be implemented, run test-id test-id [ testid-file ]mep mep-id [ mac mac-address | remote-mepmep-id ] [ description description ]
    
    The test instance is configured on the device.
3. On the receiving device on a link where proactive single-ended frame loss measurement will be implemented, run loss-measure single-ended receive test-id test-id-value
  
  The LMM reception function is configured on the device.
4. On the transmitting device on a link where proactive single-ended frame loss measurement will be implemented, run loss-measure single-ended continual send test-id test-id-value interval interval-value [ period period ]
  
  Proactive single-ended frame loss measurement is configured on the device.
5. Run commit
  
  The configuration is committed.

Checking the Configurations

Run the display y1731 statistic-type single-loss [ test-id test-id-value ] [ count count-value ] command on the device that initiates single-ended frame loss measurement to check statistics about single-ended frame loss.