Comtech EF Data IPSat GW1000 - Manual (Page 34)

01-0945-401 Rev. A 08/2004 24
Main Menu → Status →
Network → ARP Table
Before the IPSat GW1000 can send data to a
host on its Ethernet subnet, it must know the
host's physical address or MAC (Media
Access Control) address. The ARP (Address
Resolution Protocol) table contains a
list of
MAC address and IP address mappings.
Entries
will be removed from the table
according to the ARP Table Timeout value.
Main Menu → Status →
Modem
Demodulator Status: Reports whether the
demodulator is synchronized or not
synchronized to a carrier signal.
Modulator Status: Reports whether the
modulator is enabled or disabled.
AGC value: The AGC (Automatic Gain
Control) of the demodulator is a gauge of
how powerful the received signal is. As the
signal strength increases, so does the AGC
value.
Eb/No: The Eb/No value is the energy-
per-bit with respect to noise (or signal-to-
noise ratio) of the signal received by the
demodulator.
Receive Offset: The frequency difference
between the signal acquired by the
demodulator and the configured Rx
frequency.
Main Menu → Status →
DVB/MPEG
Displays the number of packets received on
each configured PID in the DVB stream.
Main Menu → Status →
Packet Statistics
[DVB] Received Packets: Number of
packets received on the DVB port.
[DVB] Dropped Packets: Number of
packets received at the DVB port that could
not be forwarded due to an unresolvable
destination IP address or some other error
condition.
[DVB] Local Packets: Number of packets
received on the DVB port that are destined
for the IPSat GW1000.
[Ethernet] Transmitted Packets:
Number of packets that are transmitted out of
the Ethernet port.
[Ethernet] Received Packets: Number of
packets that are received by the Ethernet port.
[Ethernet] Receive Errors: Number of
errors that occur on received packets on the
Ethernet port. For example, if the IPSat
GW1000 receives a frame that is too short
due to an Ethernet collision, an error will be
logged. Another example would be when the
IPSat GW1000 receives traffic at a faster rate
than it can transmit.