120 40520-100a
ViPR User Manual
23
3.2 Diagnostic
Connections
The ViPR units continually monitor and report on their environmental and operating conditions. The di-
agnostic information is in TCP format and is available via any telnet session to port 6272.
Transmission of online diagnostics may be enabled or disabled at any station or stations without affecting
their ability to communicate with other stations. Diagnostics can be sent anywhere, including being back
hauled. Back hauling adds to the network traffic flow and must be taken into account in designing a net-
work. If a return flow is necessary, it needs to be reduced substantially to have a minimal effect on the
network as described in section 3.2.1.
The ViPR radiomodem can support up to 4 diagnostics socket connections at once. This may be used, for
instance, to carry out monitoring at a main office and at up to three separate field locations. It is also pos-
sible that one of the four connections use a serial port instead by enabling it on the ViPR’s web browser
interface.
More information, statistics, and offline test facilities are available via the browser. RF paths can be
monitored and checked from either end of a link, without traveling to the other station.
3.2.1 Parameter
Adjusting the return diagnostics flow is done via parameter. This parameter indicates that only one out of
every x packets delivered will generate an online diagnostic message. The “thinning value” can be ad-
justed using the web interface (see paragraph 4.8.2.5) and set as follows:
♦
0
off
♦
1
every packet delivers a diagnostics message
♦
1000
every 1000th packet delivers a diagnostic message
3.2.2 Output
Format
Output format is man / machine-readable, ASCII, comma-delimited format. Reader program used
(or
written)
must decode the “type field” and check for type 0 as more types will be released in future. This
will ensure that no changes will be required to the user online diagnostic reader program when the ViPR
radio modem gets updated. The fields are:
♦
IP or MAC address:
Depends if unit is in Bridge mode or in Router mode
•
MAC:
Hex numbers format [00:01:02:03]
•
IP:
Dotted decimal format [111.222.333.444]
♦
Type of report:
Decimal number
(n)
that identifies the report as a “
type n
”
♦
# of fields:
Decimal number indicating number of comma-delimited fields to follow
♦
Thinning value:
Number of data packets before a diagnostic message is delivered
♦
Volts:
Decimal indications in decivolts when source is DC input
(125 for 12.5V)
♦
Temperature:
Decimal internal unit temperature in Celsius degrees
♦
Packet error rate
(
or PER
): 0 or negative decimal value
⎟⎟
⎠
⎞
⎜⎜
⎝
⎛
good
bad
10
log
10
See Figure 8 for details
Thus, -51 is CRC error rate of 10
-5.1
(since reset or when net stats were cleared). See
Table 6
.