[  754.428877][ T4030] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this.
[  754.944954][ T4035] br0: port 1(veth0) entered blocking state
[  754.945463][ T4035] br0: port 1(veth0) entered disabled state
[  754.945753][ T4035] veth0: entered allmulticast mode
[  754.948083][ T4035] veth0: entered promiscuous mode
[  755.117360][ T4036] br0: port 2(veth1) entered blocking state
[  755.117659][ T4036] br0: port 2(veth1) entered disabled state
[  755.117956][ T4036] veth1: entered allmulticast mode
[  755.119843][ T4036] veth1: entered promiscuous mode
[  755.596923][ T3437] br0: port 1(veth0) entered blocking state
[  755.597445][ T3437] br0: port 1(veth0) entered forwarding state
[  755.749537][   T48] br0: port 2(veth1) entered blocking state
[  755.749849][   T48] br0: port 2(veth1) entered forwarding state
[  757.140648][   T72] veth1: left allmulticast mode
[  757.141059][   T72] veth1: left promiscuous mode
[  757.141401][   T72] br0: port 2(veth1) entered disabled state
[  757.144548][   T72] veth0: left allmulticast mode
[  757.144747][   T72] veth0: left promiscuous mode
[  757.145156][   T72] br0: port 1(veth0) entered disabled state