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B – Command Line Interface
Test Command
B-64 59021-05 B
Q
3. Choose the type of port loopback test to run:
To run an internal loopback test, enter the following:
test x internal
To run an external loopback test, insert a loopback plug into the SFP
on the selected port, then enter the following command:
test x external
4. A series of test parameters are displayed on the screen. Press the Enter key
to accept each default parameter value, or type a new value for each
parameter and press the Enter key. The TestLength parameter is the
number of frames sent, the FrameSize (256 byte maximum in some cases)
parameter is the number of bytes in each frame, and the DataPattern
parameter is the pattern in the payload.
5. After the test type has been chosen and the command executed, a message
on the screen will appear detailing the test results.
6. After the test is run, put the port back into online state by entering the
following command (x = port number) and pressing the Enter key.
set port x state online
7. To verify port is back online, enter the following command and press the
Enter key. The contents of the AdminState field should display be “Online”.
show port x
The online loopback (node-to-node) test can test only one port at a time, and that
port must be online and connected to a remote device. To run the online loopback
test, do the following:
1. To start an admin session, enter the following command and press the Enter
key.
admin start
2. To run the online loopback test, enter the following command and press the
Enter key.
test port x online