[  520.486110] bond0: (slave eth0): making interface the new active one
[  520.486185] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.680442] bond0: (slave eth0): Releasing backup interface
[  524.750308] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.907108] bond0: (slave eth0): Releasing backup interface
[  528.941007] bond0 (unregistering): Released all slaves