NetworkArchitecture¶

The network architecture designed for libre-mesh is based in two layers:

• The cloud layer 2 which runs Batman-Adv
• The network layer 3 which runs BMX6

All nodes are runing BMX6 and BATADV at same time in the same WiFi devices but different VLANS.
The BMX6 VLAN is always the same, so all link-layer connected nodes will see each other.
The BATADV VLAN depends on the cloud identifier (CID) which is calculed (by default) from the AP SSID.

This configuration allows to isolate the layer 2 clouds.
For instance a neighborhood, a company complex or a street level hotsposts network can choose isolate their LAN from the rest of the network.
However at the same time, they will be able to reach the rest of the community network using the layer 3 routed network.

In case an entire network community wants to have a single cloud, they can just use the same CID.