Use the Analyser
Digi TransPort User Guide 754
Use the Analyser
The router can be configured to capture a trace of the data being transmitted and received on the
various interfaces. It can capture the layer 1, 2, and 3 protocol data and present it in an easily
read format.
Analyser settings
Enable Analyser
Enables or disables the analyser.
Maximum packet capture size
The number of bytes that are captured and stored for each packet. If the packet is bigger than
the configured size, the packet is truncated. Bear in mind that the larger this value, the quicker
the pseudo file ana.txt will become full so that the effective length of the analyser trace is
reduced.
Log Size
The maximum size of the pseudo file ana.txt used to store the captured data packets. Once
the maximum size is reached, the oldest captured data packets are overwritten when new
packets are captured. The maximum value is 180Kb, but the data is compressed so more than
180Kb of trace data will be captured.
Protocol layers
The check-boxes under this heading specify which protocol layers are captured and included
in the analyzer trace. You can choose to capture Layer 1 (physical / PPP), Layer 2 (Layer
protocol, the Network Layer (Layer 3) protocol or any combination, by checking or clearing the
appropriate check-boxes. In addition, you may select XOT (X.25 over TCP/IP) tracing if this
feature is included on the router.
Enable IKE debug
Enables or disables including IKE packets in the analyser trace when using IPsec.
Enable QMI trace
Enables or disables including data from the Qualcomm Management Interface in the analyser
trace.
Enable SNAIP trace
Enables or disables including the SNAIP packet in the analyser trace.
ISDN Sources
The checkboxes under this heading select the ISDN channels (D, B1 and B2) over which
packets will be captured and included in the analyser trace.
LAPB Links
The checkboxes under this heading are used to select the LAPB links over which packets will
be captured and included in the analyser trace.
Serial Interfaces
The checkboxes under this heading select the serial interfaces over which packets will be
captured and included in the analyser trace. The list of available interfaces include the physical
serial interfaces, internal virtual serial interfaces (if present), and interfaces used by built-in
WWAN and/or PSTN modems.
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