User's Manual
#9 ViPR User Manual_Rev2.doc Page 90
Save Configuration
This will send a save configuration command to all ViPRs in the network.
Get Status
This will send a "Get Status" command to all ViPRs in the network. The status will be
displayed on the Network Management -> Status page.
Single Station
Single Station allows the user to enter the single RF MAC Address of the ViPR module
commands will be sent to. If this option is selected, the command will be sent to an
individual ViPR instead of being sent to all ViPRs in the Network.
Apply
The commands will not be sent until the "Apply" button is clicked.
RECOMMENDED NEIGHBOR DISCOVERY MODES OF OPERATIONS
CalAmp recommends Auto-Scan be limited to ViPR networks of two to ten units. If Auto-
Scan mode is used, be aware the Neighbor Discovery learning process may slow responses
in SCADA networks from remote units or capture the RF channel so remotes cannot respond
to a Master.
Manual-Scan is recommended for most projects.
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.NETWORK OPTIMIZATION
MAXIMIZING TCP/IP THROUGHPUT
After optimizing the Airlink, if there appears to be an unexplained speed loss, you can
attempt to maximize TCP/IP throughput.
TCP/IP throughput can be a challenge to measure as performance is related not only to the
RF link, but how well flow-control is implemented in the TCP/IP stack and each application’s
design. ViPR has been optimized with this in mind. When the TX/RX LED flashes green or
red, this indicates data is moving across the network. It also indicates (by the LED OFF
periods) when data is not moving across the RF network at full rated speed. OFF periods
indicate the application has not presented data to the ViPR radio modem.
Using different client/server combinations or applications may show improvements. For
instance, one FTP server may work 30% faster than another; the buffer management is
quicker to respond or has bigger message buffers – yet run at nearly the same speed over a
pure Ethernet (no RF) link.
Network Address Translation (NAT), payload data compression, and encryption have little
effect other than adding a small latency to the flow of traffic.