[  874.100642][ T9523] bond0: (slave veth0): Enslaving as a backup interface with a down link
[  874.199826][ T9524] bond0: (slave veth1): Enslaving as a backup interface with a down link
[  874.307080][ T9525] br0: port 1(veth0) entered blocking state
[  874.308070][ T9525] br0: port 1(veth0) entered disabled state
[  874.308406][ T9525] veth0: entered allmulticast mode
[  874.309617][ T9525] veth0: entered promiscuous mode
[  874.401780][ T9526] br0: port 2(veth1) entered blocking state
[  874.402134][ T9526] br0: port 2(veth1) entered disabled state
[  874.402910][ T9526] veth1: entered allmulticast mode
[  874.404259][ T9526] veth1: entered promiscuous mode
[  874.834761][  T337] br0: port 1(veth0) entered blocking state
[  874.835010][  T337] br0: port 1(veth0) entered forwarding state
[  874.835955][  T337] br0: port 2(veth1) entered blocking state
[  874.836162][  T337] br0: port 2(veth1) entered forwarding state
[  876.098637][  T257] bond0: (slave veth1): link status definitely up
[  876.099085][  T257] bond0: (slave veth1): making interface the new active one
[  876.100378][  T257] bond0: active interface up!
[  876.578563][  T257] veth1: left allmulticast mode
[  876.578885][  T257] veth1: left promiscuous mode
[  876.579426][  T257] br0: port 2(veth1) entered disabled state
[  876.582442][  T257] veth0: left allmulticast mode
[  876.582647][  T257] veth0: left promiscuous mode
[  876.582946][  T257] br0: port 1(veth0) entered disabled state
[  876.778973][  T257] bond0: (slave veth1): Releasing backup interface
[  876.987865][  T257] bond0: (slave veth0): Releasing backup interface
[  877.385866][  T257] bond0 (unregistering): Released all slaves