[  874.381371][ T9305] bond0: (slave veth0): Enslaving as a backup interface with a down link
[  874.474508][ T9306] bond0: (slave veth1): Enslaving as a backup interface with a down link
[  874.558608][ T9307] br0: port 1(veth0) entered blocking state
[  874.558946][ T9307] br0: port 1(veth0) entered disabled state
[  874.559237][ T9307] veth0: entered allmulticast mode
[  874.560546][ T9307] veth0: entered promiscuous mode
[  874.648207][ T9308] br0: port 2(veth1) entered blocking state
[  874.648628][ T9308] br0: port 2(veth1) entered disabled state
[  874.648920][ T9308] veth1: entered allmulticast mode
[  874.650481][ T9308] veth1: entered promiscuous mode
[  875.091965][ T8639] br0: port 1(veth0) entered blocking state
[  875.092211][ T8639] br0: port 1(veth0) entered forwarding state
[  875.093451][ T8639] br0: port 2(veth1) entered blocking state
[  875.093658][ T8639] br0: port 2(veth1) entered forwarding state
[  876.361896][   T11] bond0: (slave veth1): link status definitely up
[  876.362333][   T11] bond0: (slave veth1): making interface the new active one
[  876.363622][   T11] bond0: active interface up!
[  876.830696][  T259] veth1: left allmulticast mode
[  876.830952][  T259] veth1: left promiscuous mode
[  876.831285][  T259] br0: port 2(veth1) entered disabled state
[  876.833913][  T259] veth0: left allmulticast mode
[  876.834152][  T259] veth0: left promiscuous mode
[  876.834471][  T259] br0: port 1(veth0) entered disabled state
[  876.973931][  T259] bond0: (slave veth1): Releasing backup interface
[  877.066830][  T259] bond0: (slave veth0): Releasing backup interface
[  877.461782][  T259] bond0 (unregistering): Released all slaves