Treat Ethernet events as alarms:
When enabled each event is treated as an alarm that is active
for 5 seconds. This may be useful when reporting to external
systems that do not support events but only active or cleared
alarms. This setting affects the local alarm list and SNMP traps.
Network settings
Promiscuous network mode:
The probe will only be able to detect additional multicasts if the
Ethernet interface is set in promiscuous mode. With this option set
to “off” the probe will not be able to detect multicasts not already
joined by the probe. The probe load increases when this option is
enabled since more packets are inspected.
Join multicasts:
If switched off probe will not send IGMP messages which is useful if
connected to a trunk port and there is no need to join multicasts.
Source specific multicasts: Required for probe to support the IGMP v3 protocol.
Time synchronization
Use time server:
Select between Off, NTP (Ethernet), TDT (QAM, COFDM, SAT, ASI) and TOT
(QAM, COFDM, SAT, ASI).
When NTP is selected the probe will synchronize with an upstream NTP server
as often as is needed to maintain accurate timekeeping on the probe. If Off is
selected, or NTP is selected and no NTP server is configured, the probe will try
to synchronize with the VBC server.
When TDT time synchronization is enabled the probe will use the UTC time found
in the TDT table and add the configured local time offset. For probes which only
have an ASI interface this input will be used as the clock source. For probes with
one or more demodulator interfaces the first frequency on the first RF interface
will be used.
When TOT time synchronization is enabled the probe will use the UTC time found
in the TOT table and add the local time offset specified by the parameter TOT
time zone. For probes which only have an ASI interface this input will be used as
the clock source. For probes with one or more demodulator interfaces, the first
frequency on the first RF interface will be used.
NTP time server: The IP address or host name of the time server.
Time zone:
By setting the time zone the probe time can be offset from the reference NTP
time.
VB2xx GigE User’s Manual version 5.4 223
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