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en:hw:01-axon:lte [2019/11/21 07:17] tomhora |
en:hw:01-axon:lte [2020/03/10 08:37] jan_kozak |
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| <WRAP center round info 80%> | <WRAP center round info 80%> | ||
| - | LTE functionality is available in the open-source image only. Axon series controllers are shipped with the Mervis image by default. **__To use LTE, you have to flash the open-source image manually.__** | + | Axon series controllers are shipped with the Mervis image by default. Mervis can be disabled or you can flash the open-source image manually. |
| * [[https://kb.unipi.technology/files:software:os-images:00-start#axon_opensource_os|open-source image]] | * [[https://kb.unipi.technology/files:software:os-images:00-start#axon_opensource_os|open-source image]] | ||
| * [[https://kb.unipi.technology/en:hw:01-axon:image|HOW-TO Flash the OS]] | * [[https://kb.unipi.technology/en:hw:01-axon:image|HOW-TO Flash the OS]] | ||
| - | LTE support on the Axon Mervis OS image will be available soon. | ||
| </WRAP> | </WRAP> | ||
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| By default, the unipi-lte Linux service provides automatic handling with the default network gateway according to the WAN availability on both main and backup network interfaces. The main network adapter is usually wired ethernet (eth0) while the backup is realized by the LTE modem. In the Linux routing table, the default GW routes for both of these interfaces should be always present. When a "swap" of these interfaces is necessary, the unipi-lte daemon automatically increases/decreases their metrics. | By default, the unipi-lte Linux service provides automatic handling with the default network gateway according to the WAN availability on both main and backup network interfaces. The main network adapter is usually wired ethernet (eth0) while the backup is realized by the LTE modem. In the Linux routing table, the default GW routes for both of these interfaces should be always present. When a "swap" of these interfaces is necessary, the unipi-lte daemon automatically increases/decreases their metrics. | ||
| - | Therefore, it is necessary to continually keep the metrics as positive non-zero values. This is ensured by a DHCP client when DHCP is active on the main network interface, but **it must be assured manually if static IP is configured on the main interface** (as static routes have zero metrics as default). As an example, you can put a constant to the interface’s configuration file at ///etw/network/interfaces.d//. | + | Therefore, it is necessary to continually keep the metrics as positive non-zero values. This is ensured by a DHCP client when DHCP is active on the main network interface but **it must be assured manually if static IP is configured on the main interface** (as static routes have zero metrics as default). As an example, you can put a constant to the interface’s configuration file at ///etw/network/interfaces.d//. |
| Then, the ///etw/network/interfaces.d/**eth0**// file for static IP configuration may look like: | Then, the ///etw/network/interfaces.d/**eth0**// file for static IP configuration may look like: | ||
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| The auto-switch feature can be disabled in the daemon’s config file. | The auto-switch feature can be disabled in the daemon’s config file. | ||
| - | An additional feature **auto_keepon** should help if the lte network interface is turned off accidentally (e.g. caused by //ifdown// command). In such a case, the re-enable (UP) operation is performed on that interface and also routing table records are refreshed. The feature is enabled by default and can be disabled in the configuration file. | + | An additional feature **auto_keepon** should help if the LTE network interface is turned off accidentally (e.g. caused by //ifdown// command). In such a case, the re-enable (UP) operation is performed on that interface and also routing table records are refreshed. The feature is enabled by default and can be disabled in the configuration file. |
| ===== LED Indicators ===== | ===== LED Indicators ===== | ||
