[  874.807268][ T9555] bond0: (slave veth0): Enslaving as a backup interface with a down link
[  874.899665][ T9556] bond0: (slave veth1): Enslaving as a backup interface with a down link
[  874.985963][ T9557] br0: port 1(veth0) entered blocking state
[  874.986264][ T9557] br0: port 1(veth0) entered disabled state
[  874.986522][ T9557] veth0: entered allmulticast mode
[  874.987693][ T9557] veth0: entered promiscuous mode
[  875.094086][ T9558] br0: port 2(veth1) entered blocking state
[  875.094415][ T9558] br0: port 2(veth1) entered disabled state
[  875.094670][ T9558] veth1: entered allmulticast mode
[  875.095854][ T9558] veth1: entered promiscuous mode
[  875.663685][ T8876] br0: port 1(veth0) entered blocking state
[  875.663938][ T8876] br0: port 1(veth0) entered forwarding state
[  875.664921][ T8876] br0: port 2(veth1) entered blocking state
[  875.665143][ T8876] br0: port 2(veth1) entered forwarding state
[  876.784283][  T257] bond0: (slave veth1): link status definitely up
[  876.784723][  T257] bond0: (slave veth1): making interface the new active one
[  876.785985][  T257] bond0: active interface up!
[  877.148388][  T257] veth1: left allmulticast mode
[  877.148616][  T257] veth1: left promiscuous mode
[  877.148956][  T257] br0: port 2(veth1) entered disabled state
[  877.151097][  T257] veth0: left allmulticast mode
[  877.151449][  T257] veth0: left promiscuous mode
[  877.151865][  T257] br0: port 1(veth0) entered disabled state
[  877.367810][  T257] bond0: (slave veth1): Releasing backup interface
[  877.528942][  T257] bond0: (slave veth0): Releasing backup interface
[  877.915007][  T257] bond0 (unregistering): Released all slaves