Extreme Networks ExtremeWare XOS 11.1, Manual

Page: 126 / 496

Status Monitoring and Statistics
ExtremeWare XOS 11.1 Concepts Guide
126
I/O Module LED Behavior—Aspen 8810 Switch
Table 19 describes the Aspen I/O module LED behavior during a diagnostic test.
While diagnostic tests are running, the DIAG LED blinks amber. If a diagnostic test fails, the DIAG LED
goes to solid amber and the Stat LED blinks amber. After the I/O module completes the diagnostic test,
or the diagnostic test is terminated, the DIAG and the Status LEDs are reset. During normal operation,
the DIAG LED is off and the Status LED blinks green.
Displaying Diagnostic Test Results
To display the status of the last diagnostic test run on the switch, use the following command:
show diagnostics slot [<slot> | A | B]
System Health Checking
System health check is a useful tool to monitor the overall health of your system. The software performs
a proactive, preventive search for problems by polling and reporting the health of system components,
including I/O and management module processes, power supplies, power supply controllers, and fans.
By isolating faults to a specific module, backplane connection, control plane, or component, the system
health checker notifies you of a possible hardware fault.
This section describes the system health check functionality of the following switches:
●
BlackDiamond 10K
●
Aspen 8810
Understanding the System Health Checker—BlackDiamond 10K
Switch Only
The BlackDiamond 10K switch supports extensive error-checking and monitoring capabilities. Packet
and system memories are protected by an error correction code (ECC). ECC is capable of correcting all
single-bit errors and detecting all other memory errors. The data path is protected by checksums and
parity checks. The system automatically corrects correctable memory errors and kills packets that
encounter checksum and parity errors during processing. Errored packets are not propagated through
the system.
Table 19: Aspen 8810 switch I/O module LED behavior
LED Color Indicates
DIAG Off Normal operation is occurring.
Amber blinking Diagnostic test in progress.
Amber Diagnostic failure has occurred.
Stat Green blinking Normal operation is occurring.
Amber blinking Configuration error, code version error, diagnostic failure, or other severe
module error.