[  847.471631][ T9548] bond0: (slave veth0): Enslaving as a backup interface with a down link
[  847.581893][ T9549] bond0: (slave veth1): Enslaving as a backup interface with a down link
[  847.655404][ T9550] br0: port 1(veth0) entered blocking state
[  847.655703][ T9550] br0: port 1(veth0) entered disabled state
[  847.656139][ T9550] veth0: entered allmulticast mode
[  847.658983][ T9550] veth0: entered promiscuous mode
[  847.764061][ T9551] br0: port 2(veth1) entered blocking state
[  847.764406][ T9551] br0: port 2(veth1) entered disabled state
[  847.764719][ T9551] veth1: entered allmulticast mode
[  847.766436][ T9551] veth1: entered promiscuous mode
[  848.176871][   T41] br0: port 1(veth0) entered blocking state
[  848.177133][   T41] br0: port 1(veth0) entered forwarding state
[  848.178079][   T41] br0: port 2(veth1) entered blocking state
[  848.178304][   T41] br0: port 2(veth1) entered forwarding state
[  849.408710][ T4996] bond0: (slave veth1): link status definitely up
[  849.409274][ T4996] bond0: (slave veth1): making interface the new active one
[  849.410876][ T4996] bond0: active interface up!
[  849.797036][ T4996] veth1: left allmulticast mode
[  849.797317][ T4996] veth1: left promiscuous mode
[  849.797688][ T4996] br0: port 2(veth1) entered disabled state
[  849.799992][ T4996] veth0: left allmulticast mode
[  849.800232][ T4996] veth0: left promiscuous mode
[  849.800535][ T4996] br0: port 1(veth0) entered disabled state
[  849.964073][ T4996] bond0: (slave veth1): Releasing backup interface
[  850.127961][ T4996] bond0: (slave veth0): Releasing backup interface
[  850.503521][ T4996] bond0 (unregistering): Released all slaves