MRV Communications LX-4000 Series Technical Information Seite 637

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L-8 Advanced LXPORTD Application
LX Series Configuration Guide
Config:0>>port async 7 no autohangup - This is
needed if the device on the port is not providing the DSR
signal to the port.
Config:0>>port async 7 no telnet negotiations
2. At the host prompt, the user can now invoke Lxportd using
the following syntax:
cat (file) | ./lxportd (ip-address) (port number)"
cat file.foo | ./lxportd 1.2.3.4 7"
The contents of the file is piped to LXPORTD, which
performs a TCP connection to port 7 of the remote LX
whose IP address is 1.2.3.4. The data in question is then
delivered to the attached terminal/workstation that is
connected to port 7 of the LX.
Advanced LXPORTD Application
In the following example, the LXPORTD application uses RADIUS
security and the Broadcast Groups capability available on the
LX. The application programmer/administrator at Airport A is
tasked with providing up-to-date flight information to over 100
TV monitors positioned in various places throughout the airport.
Four LX 32 port units are used in this configuration, with one
being the master unit on the network, and the other three LX
units daisy-chained together (while at the same time, not
needing network connectivity). Figure L.2 shows the set-up,
followed with a complete configuration example.
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