Technical data

LED Indicators

Ethernet Switch Blade

Chapter 2

During a successful boot, the following sequence of LED activity should be observed:

1. All LEDs are off as the board is released from reset (Initial insertion into chassis, or pressing the front

panel reset button).

2. IPMC turns on the OUT OF SERVICE and HEALTHY LEDs on the front panel.

3. HEALTHY LED turns green when the IPMC is up and running.

4. Ethernet link and activity (CLK, OK, INT FLT, EXT FLT) LEDs are turned on when the IPMC powers up

the board (these LEDs are also turned on when the front panel reset switch is depressed, but turned off

again when the board is released from reset in step 1).

5. When power up is complete, the Ethernet link/activity LEDs off.

6. When the bootloader code begins executing out of SDRAM, the Ethernet link LEDs turn to ORANGE and

CLK turns to RED. OK, INT FLT, and EXT FLT remain off. The LEDs will remain in this state while

the OpenArchitect (OA) software is loaded into RAM. (Console: Sparky version message is displayed,

“Testing memory activity,” ZMON banner displayed).

7. OK is turned on when the OA software completes its boot successfully. The CLK LED will blink. INT

FLT should be off. The Ethernet link LEDs will reflect the actual state of the network link for the

configured ports. The EXT FLT link may be turned on if any port brought up by ifconfig cannot establish

a link to a remote partner.

NOTE If the switch ports are not fully populated with connections to other devices, and the

ifconfig brought up all the parts, this can result in the EXT FLT being turned on even

though all of the established connections are operating normally.

8. Normal LED states for a fully operational (healthy state) switch are as follows:

• Healthy LED – Green

• Hot-Swap LED - off

•CLK LED blinking

•OK LED on

Deviations from this sequence can help pinpoint at what point during the boot process the switch encountered

a problem.

NOTE If the Ethernet Switch Blade does not display this normal sequence of activity, refer to the

Abnormal LED Activity section, below.