Qlogic SANbox2-8c Guide de l'utilisateur télécharger pdf (Page 98)

5 – Managing Ports

Testing Ports

5-14 59022-05 A

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5.3

Testing Ports

The port loopback tests verify correct port operation by sending a frame out

through the loop, and then verifying that the frame received matches the frame

that was sent. Only one port can be tested at a time for each type of test. The Port

Loopback Test window shown in Figure 5-4 presents the following tests:

■ SerDes level (Internal) - The SerDes level test verifies port circuitry. The

SerDes level test sends a test frame from the ASIC through the SerDes chip

and back to the ASIC for the selected ports. The port passes the test if the

frame that was sent by the ASIC matches the test frame that was received.

This test disrupts communication on the selected port.

■ SFP level (External) - The SFP level test also verifies port circuitry. The

SFP level test sends a test frame from the ASIC through the SerDes chip,

through the SFP transceiver fitted with a loopback plug, and back to the

ASIC for the selected ports. The port passes the test if the test frame that

was sent by the ASIC matches the test frame that was received. This test

disrupts communication on the selected port.

■ Node-to-Node (Online) - The Node-to-Node test verifies communications

between the port and its device node or device loop. The port being tested

must be online and connected to a remote device. The port passes the test if

the frame that was sent by the ASIC matches the frame that was received.

This test does not disrupt communication on the selected port.

Figure 5-4 Port Loopback Test Window

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Qlogic SANbox2-8c Guide de l'utilisateur Page 98