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en:network [2019/03/07 14:18] (current)
fluktuacia created
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 +====== Network topology of Bolidozor ======
 +
 +Detection network Bolidozor uses stations’ internet connection as its main infrastructure. Observatories also use their internal ethernet network for direct preview of measured data (e.g. in a lecture room). ​
 +
 +====== Station’s data flows ======
 +
 +A typical [[en:​rmds|radio detection stations]] connected in Bolidozor network has roughly the following construction:​
 +
 +{{:​cs:​rmds:​rmds_supervising_system.png?​600|Connection of one of the Bolidozor stations}}
 +
 +As you can see, the station is connected to network via several routs that differ in a direction of data transfer, data flow and an expected probability of failure. ​
 +
 +===== VPN connection =====
 +
 +Virtual private network connecting the stations via Internet is important for keeping the supervision and enabling a remote maintenance. VPN leads to one of our [[en:​servers|servers]],​ which at the same time evaluates state of the individual stations. ​
 +
 +Other use of VPS is in an internal communication between stations. This is important for some [[en:​algorithms|algorithms]] involved in detecting the coincidence. ​
 +
 +**VPN is not intended for massive data transfers that can be done via a direct connection to data server (especially upload of primary recorded data from stations)**
 +
 +A reason for restricting the data flow over VPN is to decrease the demands for data throughput of VPN server connection. ​
 +
 +===== SCP connection to data server =====
 +
 +SCP carried out by [[en:​data-uploader|data-uploader]] is intended for transfer of primary data to [[en:​servers|data server]]. In this way, measured data are uploaded. This connection requires data flows of approximately 1GB/day in the direction from station.
 +
 +===== Local ethernet connection =====
 +
 +Local ethernet network is used by observatories to present the data obtained by the station. For example, a lecture room can be used to present an actual data stream from station together with a running waterfall and a generated sound. Data flow in this connection depends on the way and resolution of the signal sampling on the station. However, it moves in order of units of MB/s. It is necessary to have a local network in a good shape to prevent failures. ​
 +
 +===== Backup connection via GSM =====
 +
 +This way of station’s supervision will be used in future as a backup solution - e.g. in order to reset the station or perform a remote diagnostics in case of failure.
  
en/network.txt · Last modified: 2019/03/07 14:18 by fluktuacia