[  516.485129] bond0: (slave eth0): making interface the new active one
[  516.485227] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.732509] bond0: (slave eth0): Releasing backup interface
[  520.851879] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.085093] bond0: (slave eth0): Releasing backup interface
[  525.116890] bond0 (unregistering): Released all slaves