[  511.134242] bond0: (slave eth0): making interface the new active one
[  511.134330] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.353372] bond0: (slave eth0): Releasing backup interface
[  515.456740] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.645333] bond0: (slave eth0): Releasing backup interface
[  519.674984] bond0 (unregistering): Released all slaves