[  871.396553][ T9474] bond0: (slave veth0): Enslaving as a backup interface with a down link
[  871.477598][ T9475] bond0: (slave veth1): Enslaving as a backup interface with a down link
[  871.573161][ T9476] br0: port 1(veth0) entered blocking state
[  871.573576][ T9476] br0: port 1(veth0) entered disabled state
[  871.573964][ T9476] veth0: entered allmulticast mode
[  871.575925][ T9476] veth0: entered promiscuous mode
[  871.670961][ T9477] br0: port 2(veth1) entered blocking state
[  871.671247][ T9477] br0: port 2(veth1) entered disabled state
[  871.671522][ T9477] veth1: entered allmulticast mode
[  871.673895][ T9477] veth1: entered promiscuous mode
[  872.174817][   T56] br0: port 1(veth0) entered blocking state
[  872.175227][   T56] br0: port 1(veth0) entered forwarding state
[  872.176694][   T56] br0: port 2(veth1) entered blocking state
[  872.176989][   T56] br0: port 2(veth1) entered forwarding state
[  873.366668][ T5275] bond0: (slave veth1): link status definitely up
[  873.367139][ T5275] bond0: (slave veth1): making interface the new active one
[  873.368182][ T5275] bond0: active interface up!
[  873.771760][ T8606] veth1: left allmulticast mode
[  873.771968][ T8606] veth1: left promiscuous mode
[  873.772303][ T8606] br0: port 2(veth1) entered disabled state
[  873.774394][ T8606] veth0: left allmulticast mode
[  873.774678][ T8606] veth0: left promiscuous mode
[  873.775099][ T8606] br0: port 1(veth0) entered disabled state
[  873.928346][ T8606] bond0: (slave veth1): Releasing backup interface
[  874.085901][ T8606] bond0: (slave veth0): Releasing backup interface
[  874.482436][ T8606] bond0 (unregistering): Released all slaves