5 – Managing Ports | |
Testing Ports | |
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5.2.8
Resetting a Port
The Reset Port option reinitializes the port using configuration parameters in memory. To reset a port, do the following:
1.In the Faceplate Display, select the port(s) to be reset.
2.Open the Port menu and select Reset Port.
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 three types of port loopback tests are:
■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.
■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.
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