Setting Up Synthetic Loss Measurements
  • 25 Feb 2022
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Setting Up Synthetic Loss Measurements

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Article summary

Synthetic loss measurement is used to measure the frame loss ratios (near-end and far-end) between two MEPs. Measurements and calculations are performed at one end only. You have to set up the SLM instance on the unit that you want to perform and display the SLM measurements.


Note: You must set up a MEP on the remote unit; setting up an SLM instance is optional.

▶ To set up or modify an SLM instance

  1. Access the page SOAM ▶ CFM ▶ SLM ▶ Configuration.
    All the existing Synthetic Loss Measurement Instances are displayed.

  2. Click Add to create an SLM instance or click the SLM instance index to edit an existing SLM instance.

  3. Complete the required fields, then click Apply.

For more information on specific parameters, refer to the following table.

Synthetic Loss Message Configuration (SOAM ▶ CFM ▶ SLM ▶ Configuration)

ParameterDescription
IndexThe index of the SLM instance
Name

SLM Name

The name of the SLM instance.
MEP Index

MEP idx

The index assigned to the MEP
MEPIDThe local Maintenance association End Point Identifier
Remote MEPID

R-MEPID

The remote Maintenance association End Point Identifier
PriorityPriority value used in VLAN tags, if present, in the transmitted frame.
IntervalThe time, expressed in milliseconds, at which this SLM instance issues SLM frames.

Possible values are: 10 , 100, 1000 and 10000 milliseconds. Default: 1000 milliseconds

Enable

State

The state of the SLM instance. When enabled, SLM frames are sent at the specified interval. Disabled by default.
Reference PeriodReference period, expressed in minutes, for the SLM instance. Range: 1 to 1440 minutes; default: 15 minutes.
Near-End ThresholdThe frame loss threshold for near-end packet loss, expressed as a percentage.
Far-End ThresholdThe frame loss threshold for far-end packet loss, expressed as a percentage.

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