Setting Up a Loopback Configuration Job
  • 21 Jun 2024
  • 2 Minutes to read
  • Contributors
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Setting Up a Loopback Configuration Job

  • PDF

Article summary

Layer 1 to 4 loopbacks (MAC address, IP address and port swap frame reflection) enable remote QoS testing of Ethernet, IP and triple-play services.

You can set up a configuration job to set up loopbacks on Skylight modules.

To configure a Loopback configuration job

  1. Access the page Commission ▶ Jobs.

  2. Set all common configuration job settings, as described in "Creating Configuration Jobs in GUI Mode" and in "Creating Configuration Jobs Using Data Sets".

  3. Select Loopbacks in the left pane. The Loopbacks tab is displayed.

Loopbacks tab
Setting Up a Loopback Configuration Job_1.PNG

  1. Complete all fields in the Loopbacks tab as required. For more information on specific parameters, see the table below.

  2. Use the Add PLUS BUTTON.png button or Duplicate DUPLICATE BUTTON.png button to add loopback settings as required.


Note: When duplicating a row, always select the row to duplicate before clicking the Duplicate DUPLICATE BUTTON.png button.

  1. Click Apply, then click Close.

  2. Click the Refresh REFRESH BUTTON.png button to refresh the user interface.

Loopbacks tab (Commission ▶ Jobs)
General

ParameterDescription
EnableUse this checkbox to enable or disable the loopback.
Loopback nameName of the loopback instance.
PortThe port on the remote device to which the loopback operation applies.

Available options:

  • UNI
  • NNI
  • both
Loopback typeType determines how the loopback is defined. Available options:
  • Custom - If you select this, you must complete the Custom tab.
  • JDSU - If you select this, you must complete the JDSU tab.

Custom loopback (complete this tab if you selected Custom as Type in General tab)

ParameterDescription
Filter typeThe type of filter to be applied to the loopback traffic:
  • L2 Filter
  • IPv4 Filter
  • IPv6 Filter
Filter nameName to identify the filter on the unit you are configuring.
Swap MACUse this checkbox to enable this action: swap the source and destination MAC addresses.
Swap IPUse this checkbox to enable this action: swap the source and destination IP addresses.
Swap TCP/UDP portsUse this checkbox to enable this action: swap the source and destination TCP/UDP ports.
Drop oppositeCheck this box to enable dropping the traffic entering the device on the opposite port.

If this option is disabled, opposite traffic will be restored five seconds after the loopback times out.

JDSU (complete this tab if you selected JDSU as Type in General tab)

ParameterDescription
JDSU discoveryUse this checkbox to allow this loopback to accept JDSU/Acterna™ discovery loopback commands.
JDSU loopback timeout periodThe timeout period after the Loop Up command has been received before initiating the JDSU loopback tests.

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