[  856.169011][ T9487] bond0: (slave veth0): Enslaving as a backup interface with a down link
[  856.268808][ T9488] bond0: (slave veth1): Enslaving as a backup interface with a down link
[  856.362136][ T9489] br0: port 1(veth0) entered blocking state
[  856.362680][ T9489] br0: port 1(veth0) entered disabled state
[  856.363082][ T9489] veth0: entered allmulticast mode
[  856.365130][ T9489] veth0: entered promiscuous mode
[  856.493129][ T9490] br0: port 2(veth1) entered blocking state
[  856.493763][ T9490] br0: port 2(veth1) entered disabled state
[  856.494158][ T9490] veth1: entered allmulticast mode
[  856.495849][ T9490] veth1: entered promiscuous mode
[  856.866064][   T38] br0: port 1(veth0) entered blocking state
[  856.866541][   T38] br0: port 1(veth0) entered forwarding state
[  856.868769][   T38] br0: port 2(veth1) entered blocking state
[  856.869041][   T38] br0: port 2(veth1) entered forwarding state
[  858.114015][ T8839] bond0: (slave veth1): link status definitely up
[  858.114548][ T8839] bond0: (slave veth1): making interface the new active one
[  858.122559][ T8839] bond0: active interface up!
[  858.496003][ T8839] veth1: left allmulticast mode
[  858.496366][ T8839] veth1: left promiscuous mode
[  858.496825][ T8839] br0: port 2(veth1) entered disabled state
[  858.499802][ T8839] veth0: left allmulticast mode
[  858.500014][ T8839] veth0: left promiscuous mode
[  858.500323][ T8839] br0: port 1(veth0) entered disabled state
[  858.646611][ T8839] bond0: (slave veth1): Releasing backup interface
[  858.771128][ T8839] bond0: (slave veth0): Releasing backup interface
[  859.021218][ T8839] bond0 (unregistering): Released all slaves