Fail Secure Mode - Lenovo RackSwitch G8264 Application Manual

Fail Secure Mode

© Copyright Lenovo 2016
In OpenFlow 1.3, if contact with all controllers is lost, the switch automatically
enters a fail secure mode. In this mode, the switch continues to operate based on the
existing flow entries until they expire (according to the configured flow timeout
value), while packets and messages destined to the controllers are dropped. When
a connection to a controller is reestablished, the controller has the option to either
delete or keep any remaining flow entries.
275
Chapter 15: OpenFlow