[  869.965929][ T9598] bond0: (slave veth0): Enslaving as a backup interface with a down link
[  870.052593][ T9599] bond0: (slave veth1): Enslaving as a backup interface with a down link
[  870.149027][ T9600] br0: port 1(veth0) entered blocking state
[  870.149310][ T9600] br0: port 1(veth0) entered disabled state
[  870.149567][ T9600] veth0: entered allmulticast mode
[  870.150793][ T9600] veth0: entered promiscuous mode
[  870.251404][ T9601] br0: port 2(veth1) entered blocking state
[  870.251722][ T9601] br0: port 2(veth1) entered disabled state
[  870.252024][ T9601] veth1: entered allmulticast mode
[  870.253454][ T9601] veth1: entered promiscuous mode
[  870.691035][   T39] br0: port 1(veth0) entered blocking state
[  870.691505][   T39] br0: port 1(veth0) entered forwarding state
[  870.693108][   T39] br0: port 2(veth1) entered blocking state
[  870.693518][   T39] br0: port 2(veth1) entered forwarding state
[  871.874804][ T4980] bond0: (slave veth1): link status definitely up
[  871.875476][ T4980] bond0: (slave veth1): making interface the new active one
[  871.877377][ T4980] bond0: active interface up!
[  872.340722][ T8552] veth1: left allmulticast mode
[  872.340981][ T8552] veth1: left promiscuous mode
[  872.341339][ T8552] br0: port 2(veth1) entered disabled state
[  872.344479][ T8552] veth0: left allmulticast mode
[  872.344706][ T8552] veth0: left promiscuous mode
[  872.345020][ T8552] br0: port 1(veth0) entered disabled state
[  872.474170][ T8552] bond0: (slave veth1): Releasing backup interface
[  872.596224][ T8552] bond0: (slave veth0): Releasing backup interface
[  872.966264][ T8552] bond0 (unregistering): Released all slaves