To set port loopback on OSN3500

This section describes how to set a port loopback on a tributary or line board. A tributary board receiving/transmitting non-OTN services supports inloop and outloop over its optical ports. A line- or tributary-board port receiving/transmitting OTN services supports optical-port inloop/outloop and channel inloop/outloop.
Prerequisites

You are an NM user with Operator Group rights or higher.
Procedure

    In the NE Explorer, select the target board and choose Configuration > WDM Interface from the Function Tree.
    On the Basic Attributes tab page, click Query to check the optical port or channel loopback status.


    Set other parameters as planned.

    NOTE:
        A warm board reset will automatically cancel the loopback setting.
        A looped-back optical port or channel will report the LOOP_AIM alarm.

Hello there!

Please use cfg-set-loop

: cfg-set-loop: slot number, port number, loopback mode;

for example：

:cfg-set-loop:2,2,inloop;

It means to perform internal loopback on the second port in slot 2 of the device.

Thank you！