Hitachi GR2000 Series Manual do Utilizador descarregar pdf (Página 299)

Maintenance Procedure

GR2K-GA-0015 8-37

Ver. 07-02

8.7 Line Test

8.7.1 Testing on Ethernet/Gigabit Ethernet Line

Testing on an Ethernet or Gigabit Ethernet line is performed as a loop connector

loopback test. Prior to testing, the cable of the subject line number should be

disconnected and replaced with an applicable loop connector.

For example, to test line No. 0 of NIF No. 2, enter the command lines as shown below:

The test can be executed on all types of WAN lines by entering test interfaces (LAN)

and test no interfaces (LAN) commands from the device management terminal.

(Wait about 1 minute.)

The result will appear as Figure 8-39, an example of confirmation by executing the

test interface and no test interface commands in the Ethernet line, where you need to

assure that

“Send-NG” and “Receive-NG” are both 0. If “Send-NG” and “Receive-NG” are both

0, the result is normal.

Figure 8-39 Sample Result of Loop Connector Loopback Test for Ethernet Line by

Using Test Interfaces and No Test Interfaces Commands

Note 1:

If “Send-NG” and “Receive-NG” are not 0, there is an apparent problem. Analyze the

result in accordance with a result of the no test interfaces (LAN) information in GR2000

Operations Commands, Vol. 1. If you do not have a loop connector, conduct an

internal loopback test.

Note 2:

Conducting a loopback test on a Gigabit Ethernet NIF board requires a loop connector

even when the test is an internal loopback test. Conducting a loop connector loopback

test on NE100-4FS4, NE1G-1LHA, NE1G-1LHA8 or NE1G-1LHABA requires a optical

attenuator.

Must be 1 or more.

Must be 0.

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Hitachi GR2000 Series Manual do Utilizador Página 299