![Nortel BayStack 410 24T Скачать руководство пользователя страница 259](http://html1.mh-extra.com/html/nortel/baystack-410-24t/baystack-410-24t_using-manual_1707318259.webp)
Troubleshooting
309985-B Rev 00
4-3
Green
On
The switch is connected to the upstream unit’s Cascade A
In connector.
Yellow
On
The Cascade A Out connector (CAS Up) for this switch is
looped internally (wrapped to the secondary ring).
Yellow
or
Green
Blinking
Incompatible software revision or unable to obtain a unit
ID (Renumber Stack Unit table full). The unit is on the ring
but cannot participate in the stack configuration.
CAS Dwn Stack mode
Off
The switch is in standalone mode.
Green
On
The switch is connected to the downstream unit’s
Cascade A Out connector.
Yellow
On
The Cascade A In connector (CAS Dwn) for this switch is
looped internally (wrapped to the secondary ring).
Yellow
or
Green
Blinking
Incompatible software revision or unable to obtain a unit
ID (Renumber Stack Unit table full). The unit is on the ring
but cannot participate in the stack configuration.
Base
Base mode
Green
On
The switch is configured as the stack base unit.
Off
The switch is not configured as the stack base unit (or is
in standalone mode).
Blinking
Stack configuration error: Indicates that multiple base
units or no base units are configured in the stack.
Yellow
On
This unit is operating as the stack configuration’s
temporary base unit. This condition occurs automatically
if the base unit (directly downstream from this unit) fails.
If this happens, the following events take place:
•
The two units directly upstream and directly
downstream from the failed unit automatically wrap
their cascade connectors and indicate this condition
by lighting their Cas Up and Cas Dwn LEDs (see Cas
Up and Cas Dwn description in this table).
•
If the temporary base unit fails, the next unit directly
downstream from this unit becomes the new
temporary base unit. This process can continue until
there are only two units left in the stack configuration.
(continued)
Table 4-1.
BayStack 410-24T Switch LED Descriptions
(continued)
Label
Type
Color
State
Meaning