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v One 9600 baud RS-232 serial port connector for console port use (management
v One 1 Gb RJ-45 Ethernet port connector. Do not attach any devices to this
Information LEDs
The front panel of the switch has two sets of LEDs. The OK and switch error LEDs
indicate the switch status. The link (LINK) and activity (TX/RX) Port LEDs indicate
the status of the external ports.
Notes:
v A yellow LED on the IBM Flex System chassis is lit when a system error or event
v During POST, the Power LED continuously flashes. Additionally, all of the status
v The blue Location LED is used to identify a ScSE when prompted by the CMM.
Any errors that are detected during POST are written to the system log. For
information about the command to read the system log, see the IBM Command
Reference for the switch.
When POST errors are written to the system log, these errors are also written to
the IBM Flex System management-module event log. If a hardware error, such as a
current fault occurs, the management module displays it. If a firmware error occurs,
the management module displays the Module did not complete POST message and
a post error code that indicates the test that was running when the error was
detected.
Note: You can also use the management module to make sure that the switch is
Switch status LEDs
The following table provides descriptions of the switch-module status LEDs on the
front panel of the switch.
18
CN4093 10 Gb Converged Scalable Switch: User's Guide
purposes) only. This connector is located near the bottom of the switch panel,
just above the management (Mgmt) port. Do not attach any devices to this
connector other than the serial access cable option specified for the switch, as
described in "Cabling the switch and the SFP+ and QSFP+ modules" on page
14.
connector other than when using an industry standard CAT5 cable. This
connector is identified as port EXTM in the I/O-module configuration menus and
is labeled Mgmt on the switch.
has occurred. To identify the error or event, check the IBM Flex System
management-module event log or the switch system log.
LEDs and the licensed Port LEDs are lit as a visual indication they are working.
Once POST has successfully completed, the Power LED remains on and the
Error LED is off.
operating correctly. For more information, see the documentation for the IBM
Flex System chassis.
Table 2. Switch status LEDs
Status LED
Description
This green LED is at the bottom left of the switch on the front panel.
Power (
) LED
v When this LED is lit, it indicates that the switch is on.
v When this LED is not lit and the yellow switch error LED is lit, it
indicates a critical alert. If the yellow LED is also not lit, it indicates
that the switch is off.
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