Afar NX-2E1, Руководство оператора

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NetCrossing Gateway NX-2E1/T1 Operator’s Manual
3-3
allows you to download to any other gateway that can be reached through the WAN port (in a bridge
WAN network), (2) Using a Telnet session from anywhere on the Internet. This requires the gateway
to have been pre-configured with an IP address. (3) Using a terminal emulator program (e.g.
HyperTerminal) running on a PC connected through the serial port to the gateway RS-232 console
port. This method only allows you to download to that specific gateway.
The next three sessions explain in detail how to download a new file using each method.
3.2.2 Installing new firmware through the Ethernet port
This procedure assumes that the new firmware needs to be installed in both radios of a working link.
The upgrade is performed from a single PC connected via Ethernet to one of the two radios. Note
that new firmware does not need to be compatible with the firmware currently running. You can still
download incompatible firmware and restart the link from a single location.
1. If you have not done so, install the utility program “econ” in the PC. This utility program is
distributed with the gateways and can also be downloaded from the website. Please refer to
appendix C for instructions on how to install this utility.
2. Make sure the file with the new firmware (file nxgNN_NN.bz) is available in the PC.
3. Start the econsole utility by typing “econ” from a DOS window. Econ will send a “discovery”
message and display all the AFAR devices (radios or gateways) that can be seen. Verify that all
gateways in the network are listed. Then select the gateways that you wish to upgrade.
4. Issue the command:
>directory
to view a list of files stored in Flash PROM as well as the available free space. Verify that the
free space in flash PROM is larger than the size of the nxgNN_NN.bz file in the PC. If there is
not enough space in Flash PROM delete one of the program files to make up space (use command
>delete filename).
5. If the gateway configuration has been password protected, you must first unlock the protection
with the command:
> unlock enable-configuration= password
(when the configuration is unlocked, the gateway prompt ends with the characters ‘#>. In locked
mode the prompt does not include the ‘#’ character).
6. Issue the command:
>download path/ nxgNN_NN.bz
where path/ is the directory in the PC where the nxgNN_NN.bz file is stored. The path/ can be
omitted if the file is in the same directory as the ECON program. As the download proceeds econ
displays a line showing the current percentage complete.
7. Once the download is complete, issue the command:
>set-default-program nxgNN_NN