Chapter 3 Brocade 6520 Operation; In This Chapter; Led Activity Interpretation; Brocade 6520 Leds - Brocade Communications Systems 6520 Reference Manual

Brocade 6520 Operation

In this chapter

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LED activity interpretation

System activity and status can be determined through the activity of the LEDs on the switch.
There are three possible LED states: no light, a steady light, and a flashing light. Flashing states
may be slow, fast, or flickering. The lights are green or amber.
Sometimes, the LEDs flash either of the colors during boot, POST, or other diagnostic tests. This is
normal; it does not indicate a problem unless the LEDs do not indicate a healthy state after all boot
processes and diagnostic tests are complete.

Brocade 6520 LEDs

The Brocade 6520 has the following LEDs:
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One system status LED on the left side (bicolor green/amber).
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One power status LED on the left side (green).
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Two Ethernet Port LEDs (both green).
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One port status LED for each port on the switch (bicolor green/amber). These LEDs are arrayed
above each pair of Fibre Channel ports.
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Two power supply LEDs (both green).
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One fan LED (bicolor green/amber).
NOTE
The serial console port LEDs do not light up at any time, even when a cable is inserted and the link
is active.

LED locations

Figure 3
arranged left and right to correspond to the upper and lower ports in each pair. Refer to
the locations of the FC ports.
Brocade 6520 Hardware Reference Manual
53-1002705-01
DRAFT: BROCADE CONFIDENTIAL
LED activity interpretation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
POST and boot specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Interpreting POST results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Brocade 6520 maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Brocade 6520 management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
shows the port side of the Brocade 6520. The port status LEDs for the FC ports are
Chapter
3
Figure 1 for
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