Oam Loopback Screen; Ima Loopback Screen - ZyXEL Communications MSC1024G Series User Manual

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Table of Contents

The following table describes the labels in this screen.

Table 63 Diagnostic > SELT

8.10 OAM Loopback Screen

Click Diagnostic > OAM Loopback in the navigation panel to display this screen. Use this

screen to perform an Ethernet OAM (Operational, Administration and Maintenance) loopback

test to check an Ethernet line card port's connection to a subscriber Ethernet device.

Figure 100 OAM Loopback

The following table describes the labels in this screen.

Table 64 OAM Loopback

Click Diagnostic > IMA Loopback in the navigation panel to display this screen. Use this

screen to perform a physical layer E1, layer two IMA, or ATM layer F5 loopback test to check

the connectivity between an IMA line card port and the connected ADM (Add-Drop

Multiplexing) device.

MSC1000G/1024G/1224G Series User's Guide

Select slot and port numbers from the Slot (not all cards support the SELT test) and

Port drop-down list boxes and click Set SELT Port to perform a Single End Loop Test

(SELT) on the specified port. This test checks the distance to the subscriber's location.

The SELT takes at least fifteen seconds. To check the status of the SELT or to look at

the results when the SELT is complete, select a port number from the Port drop-down

list box and click Get SELT Data. The results tell you what gauge of telephone wire is

connected to the port and the approximate length of the line.

Select slot and port numbers from the Slot and Port drop-down list boxes.

Specify the size (in bytes) of the OAM loopback test Ethernet frame to use and how

many to send. Click Test to perform the loopback test. Click Get to see the results.

Chapter 8 Diagnostic Screens

Msc1224g series Msc1000g series