Table of Contents
Advertisement
4-38
Setup and Operation
Under Group 1:
Column 1 is the interface type:
1 = Unconfigured
2 = Datapipe
3 = RF modulator
Column 2 indicates input/output:
1 = Input
2 = Output
Column 3 is the number of dropped packets since the last reboot.
Column 4 is the high-water mark value.
Column 5 is the x value referenced above.
Column 6 is the y value referenced above.
Column 7 is the z value referenced above.
Tracking Discontinuous Packets (PID Basis)
The OM 1000 version 3.5.0 and later tracks the number of times MPEG messages are received
out of order for a particular PID number based on the continuity count included in the MPEG
message header. The number of occurrences where the continuity count is not contiguous is
used as a trigger to send out SNMP traps based on user-defined thresholds. The OM 1000 sends
a major alarm when it has detected that the user defined threshold for such occurrences has
been exceeded. The threshold is considered exceeded if x number of occurrences takes place per
minute for y consecutive minutes. The default x value is 10 and the default y value is 5. The
OM 1000 clears the major alarm condition if no more than z occurrences are recorded for at
least y minutes. The default z value is zero.
Example config.ini:
[Continuity Count Threshold]
MissedContCountThreshold=10;
#
[Continuity Count Reset Threshold]
MissedContCountResetThreshold=0;
#
[Continuity Count Time Period]
ContCountTimePeriod=5;
MissedContCountThreshold is the x value referenced above.
MissedContCountResetThreshold is the y value referenced above.
ContCountTimePeriod is the z value referenced above.
Tracking Discontinuous Packets (Overall PID Count)
The OM 1000 also tracks the total number of occurrences of the continuity count not being
contiguous from the last reset. This value can be retrieved through SNMP. This value can be
cleared through SNMP or by rebooting the OM 1000.
OM 1000 Installation and Operation Manual
Advertisement
Table of Contents
