[  848.034924][ T9872] bond0: (slave veth0): Enslaving as a backup interface with a down link
[  848.124877][ T9873] bond0: (slave veth1): Enslaving as a backup interface with a down link
[  848.212712][ T9874] br0: port 1(veth0) entered blocking state
[  848.213027][ T9874] br0: port 1(veth0) entered disabled state
[  848.213303][ T9874] veth0: entered allmulticast mode
[  848.214537][ T9874] veth0: entered promiscuous mode
[  848.293819][ T9875] br0: port 2(veth1) entered blocking state
[  848.294191][ T9875] br0: port 2(veth1) entered disabled state
[  848.294467][ T9875] veth1: entered allmulticast mode
[  848.295694][ T9875] veth1: entered promiscuous mode
[  848.868970][   T40] br0: port 1(veth0) entered blocking state
[  848.869220][   T40] br0: port 1(veth0) entered forwarding state
[  848.870150][   T40] br0: port 2(veth1) entered blocking state
[  848.870363][   T40] br0: port 2(veth1) entered forwarding state
[  849.988010][ T9039] bond0: (slave veth1): link status definitely up
[  849.988519][ T9039] bond0: (slave veth1): making interface the new active one
[  849.989769][ T9039] bond0: active interface up!
[  850.262698][ T5502] veth1: left allmulticast mode
[  850.262916][ T5502] veth1: left promiscuous mode
[  850.263229][ T5502] br0: port 2(veth1) entered disabled state
[  850.266010][ T5502] veth0: left allmulticast mode
[  850.266192][ T5502] veth0: left promiscuous mode
[  850.266510][ T5502] br0: port 1(veth0) entered disabled state
[  850.439593][ T5502] bond0: (slave veth1): Releasing backup interface
[  850.630940][ T5502] bond0: (slave veth0): Releasing backup interface
[  851.010558][ T5502] bond0 (unregistering): Released all slaves