Maintaining Multiple Configuration File Versions - Siemens AIRLINK VENUS Installation & Operation Manual

Software defined radio
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5.3

Maintaining Multiple Configuration File Versions

As previously mentioned, there are three methods used to change the configuration using
WinSCP:
Upload and relink: Upload a new configuration file and relink the file
1.
(preferred) – This method uses WinSCP to transfer a new configuration file
to the radio. The old symbolic link will then need to be deleted and a new
symbolic link will need to be created to this new file as noted below.
Carefully edit a preexisting configuration file and relink the file – This method is a
2.
little more involved as it will require the user to selectively edit an existing
configuration file and then delete the old symbolic link and create a new link to
the modified file. (It should be noted that syntax errors and incorrect parameter
selection and range can disable a radio.)
Edit the symbolic link file (which edits the linked file by default) – This method
3.
edits the symbolic link file "bs_config.xml" or "ms_config.xml" which edits the
linked file therefore a new symbolic link does not need to be created.
The recommended process for managing configuration file changes is to create multiple
copies of the appropriate configuration file, giving each version a meaningful filename. A
symbolic link is then used to make the association with the standard filename and the
version to be used, as shown in the example below.
Command to show Symbolic link in Base Station Configuration Directory:
root@BS5000:/root/BS5000# ls -l bs_config.xml
l rwxrwxrwx 1 root root
2 05:43 bs_config.xml -> bs_config.xml_1M
This command shows that the symbolic link file "bs_config.xml" is linked to the configuration file
"bs_config.xml_1M". Note that changes to bs_config.xml will change the linked file as well. If a
different config file is required, then the symbolic link needs to be changed to the new file.
Before changing a symbolic link, it is necessary to delete or overwrite the existing link. Thus, the
process to change from the "1M" configuration above to "1M_asym" is as follows. (Note that a
symbolic link can be overwritten using the force "-f" option (e.g. -sf bs_config.xml_1M
bs_config.xml.)
COM-00-21-04
Version No.: A.1
16 Jan
5-13
CONFIGURATION
OCTOBER 2021

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