[  749.005047][ T4030] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this.
[  749.499469][ T4035] br0: port 1(veth0) entered blocking state
[  749.500315][ T4035] br0: port 1(veth0) entered disabled state
[  749.500567][ T4035] veth0: entered allmulticast mode
[  749.502484][ T4035] veth0: entered promiscuous mode
[  749.661641][ T4036] br0: port 2(veth1) entered blocking state
[  749.662042][ T4036] br0: port 2(veth1) entered disabled state
[  749.662404][ T4036] veth1: entered allmulticast mode
[  749.665485][ T4036] veth1: entered promiscuous mode
[  750.167943][ T1923] br0: port 1(veth0) entered blocking state
[  750.168452][ T1923] br0: port 1(veth0) entered forwarding state
[  750.325675][ T1923] br0: port 2(veth1) entered blocking state
[  750.326020][ T1923] br0: port 2(veth1) entered forwarding state
[  751.772649][   T73] veth1: left allmulticast mode
[  751.772986][   T73] veth1: left promiscuous mode
[  751.773302][   T73] br0: port 2(veth1) entered disabled state
[  751.775722][   T73] veth0: left allmulticast mode
[  751.775947][   T73] veth0: left promiscuous mode
[  751.776222][   T73] br0: port 1(veth0) entered disabled state