Hi I'm trying to build a mesh on Rasberry PI3 boards using latest (master) OpenWRT and batman 2018.2.
I only use IPv6 link local addressses (no IPV4/dhcp etc) with adhoc WIFI. GW mode of batman is off. Alfred is used to advertise some services to the mesh. A single node in the mesh has Alfred in master mode the others in slave mode. The node with Alfred in master mode, has a MQTT server. The others connect to this server once they get the information from Alfred.
Everything works fine with 31 hosts when I add more (34 max) everything stop working, hosts start to drop, I do see a lot ICMP6 neighbor advertisement/solicitation. I increased the default values for elp_interval and orig_interval to 5 and 10 seconds. Once I power down the extra host(s) everything goes back to normal. The actual traffic in the mesh beside the ICMP6 is low a few KB sent once per minute.
What I am doing wrong to hit this limit so soon ?
I'm attaching output from batctl originators and neighbors with 31 hosts.
Thanks, Nicu