[ 3815.631580] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this.
[ 3815.712970] br0: port 1(veth1) entered blocking state
[ 3815.714227] br0: port 1(veth1) entered disabled state
[ 3815.716174] device veth1 entered promiscuous mode
[ 3815.722019] br0: port 1(veth1) entered blocking state
[ 3815.723267] br0: port 1(veth1) entered forwarding state
[ 3815.724684] IPv6: ADDRCONF(NETDEV_CHANGE): br0: link becomes ready
[ 3815.735458] br0: port 1(veth1) entered disabled state
[ 3815.746523] br0: port 2(veth3) entered blocking state
[ 3815.747735] br0: port 2(veth3) entered disabled state
[ 3815.750048] device veth3 entered promiscuous mode
[ 3815.830607] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[ 3815.832209] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready
[ 3815.833729] br0: port 1(veth1) entered blocking state
[ 3815.834878] br0: port 1(veth1) entered forwarding state
[ 3815.937419] IPv6: ADDRCONF(NETDEV_CHANGE): veth2: link becomes ready
[ 3815.939012] IPv6: ADDRCONF(NETDEV_CHANGE): veth3: link becomes ready
[ 3815.940503] br0: port 2(veth3) entered blocking state
[ 3815.941641] br0: port 2(veth3) entered forwarding state
[ 3825.055098] device veth0 entered promiscuous mode
[ 3826.006225] device veth2 entered promiscuous mode
[ 3960.689365] br0: port 1(veth1) entered disabled state
[ 3960.825550] br0: port 2(veth3) entered disabled state
[ 3960.881220] device veth1 left promiscuous mode
[ 3960.882371] br0: port 1(veth1) entered disabled state
[ 3960.940625] device veth3 left promiscuous mode
[ 3960.941835] br0: port 2(veth3) entered disabled state