Configuring and Enabling Frame Delay Measurement

This article describes the steps to configure and enable the transmission and reception of Frame delay PDU by an MEP.

Frame Delay can be measured using either of the following methods:

• One-way Frame Delay Measurement
• Two-way Frame Delay Measurement

CLI Configurations

To configure and enable frame delay measurement

1. Execute the steps given in section 3.3.3.1 to configure MEP before sending the FD messages.

2. Execute the steps given in sections 3.3.8.1 to enable ECFM and Y.1731.

3. Measure frame delay by:

• Sending the one-way frame delay message to an MEP using destination MAC address.
  your product# ethernet cfm frame delay start type one-way level 7 vlan 101 mac 00:02:02:03:04:03 count 5

OR

• Sending the two-way frame delay message to an MEP using destination MAC address.
  your product# ethernet cfm frame delay start type two-way level 7 vlan 101 mac 00:02:02:03:04:03 count 5

4. Stop the frame delay measurement by:

• Configuring the count or deadline parameter while initiating the delay measurement.

OR

• Using the ethernet cfm frame delay stop type level vlan command.
  

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  Note: The above mentioned steps are only for initiating the frame delay message. User may not get the same output. To get the same output, the target entity also needs to be configured.

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For sending a Frame Delay message to an MEP using destination’s MEPID

Example: ethernet cfm frame delay start type two-way level 7 vlan 101 mpid 2 count 5

• MAC Address of MEP with specified target mpid must be learned prior to the execution of the command.
• For a VLAN-UnAware MEP, vlan keyword must not be provided with the command.
• ECFM and Y.1731 should be enabled for the successful Frame Delay message transmission.
• At a time, MEP can perform only one type of delay measurement.
• count and deadline, if not provided, assumes infinite number of frame delay messages to send.
• User can view the result of delay measurement using show ethernet cfm frame delay buffer command.

SNMP Configurations

To configure and enable frame delay measurement

1. Execute the steps given in SNMP Configurations to configure MEP before sending the frame delay messages.
2. Execute the steps given in SNMP Configurations to enable ECFM and Y.1731.
3. Measure frame delay by:

• Sending the one-way frame delay message to an MEP using destination MAC address. [Index: ContextID = 0, MD-Index = 1, MA-Index = 1, MEP-Index = 5]
  % snmp0 set {{fsMIY1731MepTransmitDmDestIsMepId.0.1.1.5 false }}
  % snmp0 set {{fsMIY1731MepTransmitDmDestMacAddress.0.1.1.5 00:02:02:03:04:0a }}
  % snmp0 set {{fsMIY1731MepTransmitDmType.0.1.1.5 oneWay }}
  % snmp0 set {{fsMIY1731MepTransmitDmMessages.0.1.1.5 5 }}
  % snmp0 set {{fsMIY1731MepTransmitDmStatus.0.1.1.5 start }}

OR

• Sending the two-way frame delay message to an MEP using destination MAC address. [Index: ContextID = 0, MD-Index = 1, MA-Index = 1, MEP-Index = 5]
  % snmp0 set {{fsMIY1731MepTransmitDmDestIsMepId.0.1.1.5 false }}
  % snmp0 set {{fsMIY1731MepTransmitDmDestMacAddress.0.1.1.5 00:02:02:03:04:0a }}
  % snmp0 set {{fsMIY1731MepTransmitDmType.0.1.1.5 twoWay }}
  % snmp0 set {{fsMIY1731MepTransmitDmMessages.0.1.1.5 5 }}
  % snmp0 set {{fsMIY1731MepTransmitDmStatus.0.1.1.5 start }}

4. Stop the frame delay measurement by:

• Configuring the number of messages or deadline parameter while initiating the delay measurement. [Index: ContextID = 0, MD-Index = 1, MA-Index = 1, MEP-Index = 5]
  % snmp0 set {{fsMIY1731MepTransmitDmMessages.0.1.1.5 5 }}
  % snmp0 set {{fsMIY1731MepTransmitDmDeadline.0.1.1.5 10 }}

OR

• Configuring the transmit status as stop: [Index: ContextID = 0, MD-Index = 1, MA-Index = 1, MEP-Index = 5]
  % snmp0 set {{fsMIY1731MepTransmitDmStatus.0.1.1.5 stop }}