Cisco GoQAM, Installation And Operation Manual

Page: 151 / 178

Troubleshooting Alarm Messages
4004834 Rev D 135
LCD
Description
Alarm
Level
Probable Cause Check and Correct
Input (1-4)
errored MPEG
packets
Minor An error occurred in the header of MPEG
packets as they arrived at the indicated
Input port
Contact Cisco Services
Input (1-4)
FIFO overflow
See also
Input (1-4)
packets were
dumped
Minor A first-in first-out (FIFO) overflow
occurred and packet data has been lost.
This indicates one or more of the
following conditions:
 Too many sessions defined from the
DNCS for the GoQAM

The data rate as defined from the
DNCS for the GoQAM session is too
low, which also means that the data
rate of the ASI input to the GoQAM is
too high
 Hardware problem
 Incorrect modulation mode

Reduce the data rate of
input to the GoQAM
by doing the
following:
–
Reducing the
amount of
incoming data
–
Reducing the
amount of data
added to the
stream
–
Increasing the
GoQAM
modulation mode

Verify and correct
session rate targets
and threshold values

Contact Cisco Services
Input (1-4)
loss of signal
Major No signal. This indicates one or more of
the following conditions:

An upstream device that provides
input to the GoQAM has failed or is
offline

A cable has been disconnected

Check for loose or
broken DVB ASI cable
connections to the
GoQAM

Check that the DVB
ASI outputs of
upstream devices are
active

Run the Doctor Report
to troubleshoot any
network connectivity
issues

Contact Cisco Services
Input (1-4)
MPEG
continuity
error
Minor MPEG continuity error counter. One or
more of the MPEG packets are being
dropped

Check one or more
upstream devices
connected to the DVB
ASI input ports

Contact Cisco Services