System information

Operation 1-23
Software Release 2.0.1
C613-03018-00 REV A
likely to be a problem with the router itself. The problem can be corrected in
the short term by restarting the router, but it should be reported to your
supplier.
Fast buffer memory, on power PC based routers and switches only) is cached
by the CPU and is available only for program variable storage. It cannot be
used for packet buffers.
The contents of memory can be examined with the command:
DUMP
and modified with the command:
MODIFY
The DUMP command on page 1-61 and the MODIFY command on page 1-75 are
provided as diagnostic tools and should not be needed for normal operation of
the router. Inappropriate use of these commands may cause a malfunction of the
router, resulting in the loss of network services.
Power Supply
The AT-AR740 router automatically monitors its own power supply and fan,
and has the option of a redundant power supply. If a redundant power supply
(RPS) is attached, the AT-AR740 software can detect the presence of the RPS
and the state of its output voltages and fan. RPS monitoring, turned off by
default, can be turned on or off using the command:
SET SYSTEM RPSMONITOR={ON|OFF}
The SHOW SYSTEM command on page 1-124 displays the state of the main
power supply and fan, and whether or not the RPS is being monitored. If RPS
monitoring is enabled, it also shows whether an RPS is connected, and the state
of its output voltages and fan.
When a fault occurs in the main power supply or fan, the system LEDs on the
front and back panels of the AT-AR740 are flashed in a pattern that identifies
the fault (Table 1-5 on page 1-23). If RPS monitoring is on, the system LEDs also
flash to indicate failures in the RPS connection, power supply or fan. Multiple
faults are indicated by cycling through each error code.
Table 1-5: LED indications for fan an power supply faults on the ATAR740 router.
When this fault occurs... The System LED flashes in this pattern...
Router fan failure One flash: 0.2s on, 2s pause, (repeat)...
RPS fan failure Two flashes: 0.2s on, 0.3s off, 0.2s on, 0.3s off, 2s pause,
(repeat)...
Router PSU failure Three flashes: 0.2s on, 0.3s off, 0.2s on, 0.3s off,
0.2s on, 2s pause, (repeat)...
RPS PSU failure Four flashes: 0.2s on, 0.3s off, 0.2s on, 0.3s off,
0.2s on, 0.3s off, 0.2s on, 2s pause, (repeat)...
RPS not connected Five flashes: 0.2s on, 0.3s off, 0.2s on, 0.3s off,
0.2s on, 0.3s off, 0.2s on, 0.3s off,
0.2s on, 2s pause, (repeat)...