yanic/docs/home_about.md

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# About
A little overview of yanic in connection with other software:
![Overview](overview.svg)
## How respondd works
It sends the `gluon-neighbour-info` request and collects the answers.
It will send UDP packets with multicast address `ff05:0:0:0:0:0:2:1001` and port `1001`.
If a node does not answer, it will request with the last know address under the port `1001`.
## Related projects
#### yanic collecting data
VPNs (respondd for servers):
* [mesh-announce](https://github.com/ffnord/mesh-announce) from FreiFunkNord
* [respondd](https://github.com/Sunz3r/ext-respondd) from Sunz3r
Nodes (respondd for nodes): [gluon](https://github.com/freifunk-gluon/gluon/)
#### Alternative collectors of respondd data:
* [Node informant](https://github.com/ffdo/node-informant) written in Go
* [HopGlass Server](https://github.com/plumpudding/hopglass-server) written in Node.js
#### yanic published data
**Databases:**
* [InfluxDB](https://influxdata.com/) SQL-like timeserial database
* [Graphite](https://graphiteapp.org/) RRD file Based
Visualization from Databases: [Grafana](https://grafana.com/)
**Output:**
* meshviewer-ffrgb:
* [meshviewer](https://github.com/ffrgb/meshviewer)
* nodelist:
* [ffapi](https://freifunk.net/api-generator/)
* [freifunk-karte.de](https://freifunk-karte.de)
* meshviewer (others):
* unmaintained [origin meshviewer](https://github.com/ffnord/meshviewer) branch: master (v1) and dev (v2)