Troubleshooting guide

1. Overview
3
1.2 Overview of analyzing failures of all or part of the Switch
1.2.1 Failure analysis for AX6700S, AX6600S, and AX6300S series switches
If a failure occurs during operation and the actual switch can be looked at, take appropriate action
as described in 2.1 Troubleshooting faults for AX6700S, AX6600S, and AX6300S series switches
to troubleshoot the failure.
The status of a switch is shown in the basic control unit (BCU) for AX6700S series switches, in
the control and switching unit (CSU) for AX6600S series switches, and in the management and
switching unit (MSU) for AX6300S series switches. Table 1-1: LED indications, buttons, and
connectors describes the LED indications of the BCU, CSU, and MSU and what they mean.
Figure 1-1: Example layout of the front panel shows a front panel layout example.
For LED indications of optional modules other than the BCU, CSU, and MSU, such as the BSU,
a NIF, a power supply unit, or a fan unit module, see the Hardware Instruction Manual. The
manual also provides front panel layouts other than the one shown in Figure 1-1: Example layout
of the front panel.
Note that even when you cannot look at the actual switch, you can still check the LED indications
of the switch and troubleshoot failures accordingly, just like when you can look at the actual
switch, by issuing operation commands from a remote terminal.
Table 1-1: LED indications, buttons, and connectors
No
.
Name Type Status Description
1 STATUS LED: Green,
orange, or red
Operating status of
BCU, CSU, or MSU
Green: The switch is available for operation.
Orange: The unit is under self diagnosis
operation.
Blinking green: The unit is loading software.
Red: A fault has been detected.
Off: The power is off. (The BCU, CSU, or MSU
can be replaced.)
#1
2SYSTEM
OPERATIO
N PANEL
LCD and operation
keys
System operation panel The system operation panel displays device
information, operating instructions, or failure
information. (For details, see the Configuration
Guide.)
3 ACC LED: Green Memory card status Green: The memory card is being accessed. Do
not remove the memory card.
Off: The memory card is idle. The memory card
can be inserted or removed.
4 SD CARD Connector SD card slot SD card slot
5RESET Button
(non-locking)
Manual reset button for
the device
Pressing the button for one second: Perform this
operation if, for example, a fault occurs with the
switch.
#2#3
Pressing the button for five seconds: Perform
this operation if the password is forgotten.
#2#4
6 ACH Button
(non-locking)
Button for altering the
active and standby
BCU, CSU, or MSU
modules
When the BCU, CSU, or MSU modules are
duplicated, pressing the button swaps the active
and standby units.
#2#5
7 ACTIVE LED: Green Operating status of the
BCU, CSU, or MSU
Green: Active
Off: Standby