
170
C
HAPTER
5: P
ATH
B
UILDER
S330 D
IAGNOSTICS
AND
P
ERFORMANCE
S
TATISTICS
Loss of Signal(LOS)
Cannot detect a signal at a
configured port. This alarm is
applicable to DS3 UNI, E3 UNI,
OC3/STM-1 UNI, DS1 IMA UNI,
and E1 IMA UNI ports.
Check the cable between the interface
port and the service provider’s
equipment/terminal equipment. Check
cable connections. Check transmit and
receive pairs for proper connection.
Check terminating equipment. Call
your service provider.
Network Card
Loopback
A loopback is configured on
the port. Loopbacks are for
troubleshooting only and
should not be present under
normal operating conditions.
If you are not troubleshooting the port,
turn off the loopback.
Network Line
Loopback
A loopback is configured on
the port. Loopbacks are for
troubleshooting only and
should not be present under
normal operating conditions.
If you are not troubleshooting the port,
turn off the loopback.
Out of Frame(OOF)
The configuration settings on
the port are not correct for the
line, or the port configuration
is correct, but the line is
experiencing errors that result
in an alarm.
Verify that the framing format
configured on the port matches the
framing format on the line. Check the
port’s statistics report for evidence of a
bad line; bursts of LCVs could indicate
a timing problem. If connected to local
DS3/E3/OC3 equipment, check that
equipment’s output level to make sure
it is not overdriving the input.
Table 27
Alarms Common to Several Modules (continued)
Alarm
Meaning
Troubleshooting Steps
Содержание 3C63311 - SuperStack II PathBuilder S310 Bridge/router
Страница 86: ...74 CHAPTER 3 GETTING STARTED ...
Страница 176: ...164 CHAPTER 4 CONFIGURING PATHBUILDER S330 S310 MODULES PORTS AND APPLICATIONS ...
Страница 260: ...248 INDEX ...