[  874.634016][ T9548] bond0: (slave veth0): Enslaving as a backup interface with a down link
[  874.719331][ T9549] bond0: (slave veth1): Enslaving as a backup interface with a down link
[  874.802168][ T9550] br0: port 1(veth0) entered blocking state
[  874.802503][ T9550] br0: port 1(veth0) entered disabled state
[  874.802759][ T9550] veth0: entered allmulticast mode
[  874.803948][ T9550] veth0: entered promiscuous mode
[  874.906849][ T9551] br0: port 2(veth1) entered blocking state
[  874.907139][ T9551] br0: port 2(veth1) entered disabled state
[  874.907395][ T9551] veth1: entered allmulticast mode
[  874.908938][ T9551] veth1: entered promiscuous mode
[  875.349944][   T40] br0: port 1(veth0) entered blocking state
[  875.350198][   T40] br0: port 1(veth0) entered forwarding state
[  875.351194][   T40] br0: port 2(veth1) entered blocking state
[  875.351427][   T40] br0: port 2(veth1) entered forwarding state
[  876.614954][ T5259] bond0: (slave veth1): link status definitely up
[  876.615448][ T5259] bond0: (slave veth1): making interface the new active one
[  876.616954][ T5259] bond0: active interface up!
[  877.005533][  T279] veth1: left allmulticast mode
[  877.005750][  T279] veth1: left promiscuous mode
[  877.006055][  T279] br0: port 2(veth1) entered disabled state
[  877.008005][  T279] veth0: left allmulticast mode
[  877.008216][  T279] veth0: left promiscuous mode
[  877.008570][  T279] br0: port 1(veth0) entered disabled state
[  877.265697][  T279] bond0: (slave veth1): Releasing backup interface
[  877.388976][  T279] bond0: (slave veth0): Releasing backup interface
[  877.778904][  T279] bond0 (unregistering): Released all slaves