[  851.351488][ T9525] bond0: (slave veth0): Enslaving as a backup interface with a down link
[  851.447565][ T9526] bond0: (slave veth1): Enslaving as a backup interface with a down link
[  851.534104][ T9527] br0: port 1(veth0) entered blocking state
[  851.534358][ T9527] br0: port 1(veth0) entered disabled state
[  851.534594][ T9527] veth0: entered allmulticast mode
[  851.535768][ T9527] veth0: entered promiscuous mode
[  851.626489][ T9528] br0: port 2(veth1) entered blocking state
[  851.626745][ T9528] br0: port 2(veth1) entered disabled state
[  851.626976][ T9528] veth1: entered allmulticast mode
[  851.628473][ T9528] veth1: entered promiscuous mode
[  852.482647][ T4440] br0: port 1(veth0) entered blocking state
[  852.482913][ T4440] br0: port 1(veth0) entered forwarding state
[  852.483912][ T4440] br0: port 2(veth1) entered blocking state
[  852.484152][ T4440] br0: port 2(veth1) entered forwarding state
[  854.338670][ T4892] bond0: (slave veth0): link status definitely up
[  854.339427][ T4892] bond0: (slave veth1): link status definitely up
[  854.339669][ T4892] bond0: (slave veth0): making interface the new active one
[  854.341342][ T4892] bond0: active interface up!
[  854.713507][ T8781] veth1: left allmulticast mode
[  854.713796][ T8781] veth1: left promiscuous mode
[  854.714311][ T8781] br0: port 2(veth1) entered disabled state
[  854.717304][ T8781] veth0: left allmulticast mode
[  854.717537][ T8781] veth0: left promiscuous mode
[  854.717839][ T8781] br0: port 1(veth0) entered disabled state
[  854.898579][ T8781] bond0: (slave veth1): Releasing backup interface
[  855.030907][ T8781] bond0: (slave veth0): Releasing backup interface
[  855.401712][ T8781] bond0 (unregistering): Released all slaves