Chapter 9: Troubleshooting
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AT-SBx81CFC400 Controller Fabric Card
If the chassis has one controller card and the card fails, all network
operations stop. The Ethernet line cards stop forwarding all network traffic
until the controller card is replaced.
If the chassis has two controller cards and one fails, the Ethernet line
cards continue to forward traffic, but the traffic bandwidth across the
backplane is reduced from 80 to 40 Gbps per line card slot, which,
depending on the number of Ethernet line cards present and the amount
of traffic traversing the backplane, may result in slower network
operations.
If the chassis has one controller card, examine the M/S LED on the card.
The LED should be solid green. If the LED is flashing amber, the card is
initializing its AlliedWare Plus Operating Software. Wait one or two
minutes for the card to complete the process and check the LED again. If it
has not changed to solid green, the card cannot complete the initialization
process. Try moving the controller card to the other controller card slot,
slot 5 or 6, to see if it works in a different slot. You might also try
connecting a terminal or PC with a terminal emulator program to the
Console RS232 port to watch for any error messages.
If the chassis has two controller cards, check the M/S LEDs on both cards.
The LEDs should be solid green on one card and solid or flashing amber
on the other card. If the LEDs are both flashing amber, they are initializing
their AlliedWare Plus Operating Software. Wait one or two minutes for the
cards to complete the process and check the LEDs again. If both LEDs
are still flashing amber, the cards cannot complete the initialization
process. Try replacing the cards.
The controller card has an onboard battery to maintain the date and time
when the chassis is powered off or reset. If you manually set the date and
time but the card loses the information after you power off or reset the unit,
you may have forgotten to remove the battery insulator when you installed
the card in the chassis. The insulator is shown in Figure 70 on page 114.
The only way to remedy the problem is to remove the controller card from
the chassis and remove the battery insulator. If the chassis has only one
controller card, removing the card causes the Ethernet line cards to stop
forwarding traffic.