Runs normal or extended diagnostics on the switch or node, and stacking ports.
This command is not supported in stacking mode, but if you issue the show diagnostics command from the master node, it will show the diagnostic results for all the nodes.
| extended | Runs an extended diagnostic routine. Takes the ports offline, and performs extensive ASIC and packet loopback tests on all of the ports. |
| normal | Runs a normal diagnostic routine. Takes the ports offline, and performs a simple ASIC and packet loopback test on all of the ports. |
N/A.
Depending on your platform, use this command to run diagnostics on the switch or stack port.
If you run the diagnostic routine on the switch, it reboots and then performs the diagnostic test. During the test, traffic to and from the ports on the switch is temporarily unavailable. When the diagnostic test is complete, the switch reboots and becomes operational again.
To run the diagnostic routine on the stack ports, you need a dedicated stacking cable that connects stack port 1 to stack port 2, which are located at the rear of the switch. The stacking cable is available from Extreme Networks. The switch performs a hardware test to confirm that the stack ports are operational; traffic to and from the ports on the switch is temporarily unavailable. This Bit Error Rate Test (BERT) provides an analysis of the number of bits transmitted in error.
After the switch runs the diagnostic routine, test results are saved to the switch‘s EEPROM and messages are logged to the syslog.
To run diagnostics on a switch that is in a SummitStack, first disable stacking on that switch, then restart the switch. Once restarted, log into the switch via its console port, and run diagnostics. The switch will perform the diagnostic tests, and then restart. Once restarted, log into the switch via its console port and enable stacking, then reboot the switch. Once restarted, the switch will rejoin the stack.
To view results of the last diagnostics test run, use the following command:
show diagnostics {slot [slot_number]}If the results indicate that the diagnostic failed on a node, replace the node with another switch of the same type.
If the results indicate that the diagnostic failed on the switch, contact Extreme Networks Technical Support.
The following example runs normal diagnostics on a ExtremeSwitching series switch:
run diagnostics normal
The switch displays a warning similar to the following about the impact of this test. You also have the opportunity to continue or cancel the test:
Running Diagnostics will disrupt network traffic. Are you sure you want to continue? (y/n)
Enter y to continue and run the diagnostics. Enter n to cancel the operation.
The following command runs diagnostics on the stack ports on a ExtremeSwitching series switch:
run diagnostics stack-port
If you issue this command with a console connection, the switch displays the following information. You also have the opportunity to continue or cancel the test:
Summit Diagnostics Mode Enabled, Starting Diagnostics.... Found X440a-24T in Motherboard Motherboard CPLD Revision: 2 Starting stacking port diagnostics ***************************************************************** * * * Please connect a cable between Stack Port 1 and Stack Port 2. * * * * Press S to skip test, ENTER key to continue. * * * *****************************************************************
Press [Enter] to continue and run the diagnostics. Enter s to cancel the operation.
If you continue with diagnostics, the switch displays messages similar to the following:
Stack Port 1 and Stack Port 2 BERT ...................................................................................... ................................................................................... Stacking ports Port 1 (Device 0 - Device port 26) Lane 0 PASSED. Lane 1 PASSED. Lane 2 PASSED. Lane 3 PASSED. Port 2 (Device 0 - Device port 27) Lane 0 PASSED. Lane 1 PASSED. Lane 2 PASSED. Lane 3 PASSED. DIAGNOSTIC PASS: run test bert stacking Summit Diagnostics completed, rebooting system...
If you issue this command with a Telnet connection, the switch displays a warning similar to the following about the impact of this test. You also have the opportunity to continue or cancel the test:
Running Diagnostics will disrupt network traffic. Are you sure you want to continue? (y/n)
Enter y to continue and run the diagnostics. Enter n to cancel the operation.
This command was first available in ExtremeXOS 10.1.
This command is available on ExtremeSwitching 5320, 5420, 5520, and 5720 series switches.