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Figure F-1 shows that there are three equal-cost, next-hop paths from Router A to the destination subnets with
load-sharing across redundant links. At any point in time, Router A’s routing table could have information
indicating the following:
Destination subnet Next hop
10.1.0.0/16 Router C
10.2.0.0/16 Router D
10.3.0.0/16 Router B
10.32.0.0/16 Router B
10.42.0.0/16 Router D
Appendix G: troubleshooting
LED status indicators for 6600 series
The ProCurve 6600 Switch Series management module has various LED status indicators that are described in
Table G-1.
LED State Indication
Power On (green) The switch is receiving power.
Off The switch is NOT receiving power.
Fault On (orange) On briefly at the beginning of switch self-test, after the switch is powered on or reset. If on for a prolonged
time, the switch has encountered a fatal hardware failure, or has failed its self-test.
Off The normal state; indicates there are no fault conditions on the switch.
Blinking (orange) A fault has occurred on the switch, one of the switch modules, an individual port, a power supply, or a fan.
The Status LED for the module or other device with the fault will flash simultaneously.
Test On (green) The switch self-test and initialization are in progress after you have power-cycled or reset the switch. The
switch is not operational until this LED goes off. The Self-Test LED also comes on briefly when you “hot-swap”
a module into the switch and the module is automatically self-tested.
Off Normal operation; the switch is not undergoing self-test.
Blinking (orange) A component of the switch has failed its self-test. The Status LED for that component, for example, a switch
module, and the switch Fault LED will flash simultaneously.
Temperature On Internal temperature is normal.
Blinking (orange) An over-temperature condition has been detected.
Fan On (green) Normal operation.
Blinking (orange) One or more of the switch’s fans have failed. The switch Fault LED will be blinking simultaneously.