Batman-adv mesh has short packet loss spans

Installing and Using OpenWrt
1

Hi,

I'm currently experiencing very short times of packet loss on my devices connected to routers via LAN/WiFi that participate in my batman-adv 802.11s mesh.

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I'm using a mesh of 4 Archer C7v2/5 devices running OpenWrt 19.07.1 and non-ct ath10k drivers. The mesh is WPA3-SAE encrypted. MTU = 1500 (due to bug in driver). Topology is like this.

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I suspect it has something to do with bridge loop avoidance which was my last action to turn it on and add the archer c7v5 on floor 0 to the mesh (surplus it already had LAN connection).

Any help appreciated :). Thank you.

Kind regards
Catfriend1

/etc/config/network

config interface 'bat0'
	option proto 'batadv'
	option routing_algo 'BATMAN_IV'
	option aggregation '1'
	option ap_isolation '0'
	option bonding '0'
	option fragmentation '1'
	option gw_mode 'off'
	option log_level '0'
	option orig_interval '10000'
	option bridge_loop_avoidance '1'
	option distributed_arp_table '1'
	option multicast_mode '1'
	option network_coding '0'
	option hop_penalty '30'
	option isolation_mark '0x00000000/0x00000000'

config interface 'nwi_mesh0'
	option mtu '1500'
	option proto 'batadv_hardif'
	option master 'bat0'

... Both VLANs are bridged to bat0.[VLAN-ID].