[  838.349636][ T9409] bond0: (slave veth0): Enslaving as a backup interface with a down link
[  838.438011][ T9410] bond0: (slave veth1): Enslaving as a backup interface with a down link
[  838.524127][ T9411] br0: port 1(veth0) entered blocking state
[  838.524483][ T9411] br0: port 1(veth0) entered disabled state
[  838.524785][ T9411] veth0: entered allmulticast mode
[  838.526027][ T9411] veth0: entered promiscuous mode
[  838.613740][ T9412] br0: port 2(veth1) entered blocking state
[  838.614045][ T9412] br0: port 2(veth1) entered disabled state
[  838.615069][ T9412] veth1: entered allmulticast mode
[  838.616338][ T9412] veth1: entered promiscuous mode
[  839.058656][ T5256] br0: port 1(veth0) entered blocking state
[  839.059001][ T5256] br0: port 1(veth0) entered forwarding state
[  839.060452][ T5256] br0: port 2(veth1) entered blocking state
[  839.060730][ T5256] br0: port 2(veth1) entered forwarding state
[  840.338866][ T8774] bond0: (slave veth1): link status definitely up
[  840.339285][ T8774] bond0: (slave veth1): making interface the new active one
[  840.347747][ T8774] bond0: active interface up!
[  840.825617][ T8774] veth1: left allmulticast mode
[  840.825910][ T8774] veth1: left promiscuous mode
[  840.826448][ T8774] br0: port 2(veth1) entered disabled state
[  840.830688][ T8774] veth0: left allmulticast mode
[  840.830953][ T8774] veth0: left promiscuous mode
[  840.831230][ T8774] br0: port 1(veth0) entered disabled state
[  841.008461][ T8774] bond0: (slave veth1): Releasing backup interface
[  841.129128][ T8774] bond0: (slave veth0): Releasing backup interface
[  841.499561][ T8774] bond0 (unregistering): Released all slaves