3Com 3C63400-3AC-C - PathBuilder S700 Switch, Справочное руководство

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Managing System Alarms 219
QSIM/FAM Alarms
Table 45 describes the alarms specific to QSIMs and FAMs
Working with History
Alarms
The PathBuilder S700 captures all alarms and information events and keeps them
in an alarm history file. This file can hold up to 300 events; it fills on a
first-in/first-out basis. We recommend that you routinely view the alarm history file
before events are lost. We also recommend that you print the file for comparison
with previous history files and entry into your maintenance log.
Viewing and Printing History Alarms
To view and print an alarm history, follow these steps:
1 From the Main menu, select [3] Fault Management to display the Fault
Management menu shown earlier in Figure 163.
2 Select [3] Display History Alarms to view the alarm history. Figure 165 shows a
representative Display History Alarm screen.
Transmit FIFO
Overflow The cell bus is congested, and
cells are backed up on the CBR.
Traffic at the output side of the
CBR port is being transmitted
more slowly than it is being
received from the cell bus. As a
result, the output buffer is
overflowing. In general, the
problem is that the CBR
connection is not synchronized
end-to-end. The clock rate of
the output port does not
match the clock rate of the
device from which the traffic
originated.
The entire CBR connection must be
synchronous end-to-end. Make sure
the clock rates of the devices at either
end of the connection match each
other and match the transmit clock rate
of the CBR ports on the PathBuilder
device.
VC RDI Receive VC RDI (Remote Defect
Indication) OAM received in
the connection. The far end
equipment has a problem with
the signal it is receiving,
indicating that the problem lies
between the network provider
and the far end terminal
equipment for this connection. Check for a defective cable between
the far end interface port and your
service provider's network interface
unit. An open transmit line can cause
this condition.
Table 45 QSIM Alarms
Alarm Meaning Troubleshooting Steps
LMI Link Down The Local Management
Interface has taken the link
down. Check the LMI protocol configuration
for the port.
Table 44 DSX-1/E1 CBR Module Alarms (continued)