3Com DSA-3CV1001-02 service manual Setting Internal Loopback Mode

46CHAPTER 4: USING THE LOCAL MANAGEMENT ACCESS

Figure 38 Change Work Mode Menu

Change Work Mode Menu

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Current Working Mode of Ethernet: Normal Operation

1.Set Normal Mode

2.Set Internal Loopback Mode

3.Set Extenal Loopback Mode

4.Set Full Duplex Mode

0.Return to Previous Menu

Please enter your choice:

In the Change Work Mode Menu, the current working mode is shown to be one of:

■Normal Operation

Normal operation is lack of loopbacks and half duplex.

■Internal Loopback Mode

■

■

External Loopback Mode

Full Duplex Mode

The full duplex mode is displayed if a previous operation changed the mode to full duplex.

Refer to Setting Duplex Mode, on page 47, for changing the duplex mode.

Setting Internal Loopback Mode

To set internal loopback mode, type 2 and press <Enter>. The message appears:

This action will change the working mode of Ethernet!

Do you want to proceed (Y/[N])? :

To confirm type y; to discard, type n; and and press <Enter>.

When you proceed, the message appears:

Action has been done.