142 | | ''The !OpenFlow controller is responsible for setting up all flows on the switch, which means that when the controller is not running there should be no packet switching at all. Depending on the setup of your network, such a behavior might not be desired. It might be best that when the controller is down, the switch should default back to being a learning layer 2 switch. In other circumstances however this might be undesirable. In OVS this is a tunable parameter, called `fail-safe-mode` which can be set to the following parameters: |
143 | | * `standalone` [default]: in this case OVS will take responsibility for forwarding the packets if the controller fails |
144 | | * `secure`: in this case only the controller is responsible for forwarding packets, and if the controller is down all packets are dropped. |
| 142 | ''The !OpenFlow controller is responsible for setting up all flows on the switch, which means that when the controller is not running there should be no packet switching at all. Depending on the setup of your network, such a behavior might not be desired. It might be best that when the controller is down, the switch should default back to being a learning layer 2 switch. In other circumstances however this might be undesirable. In OVS this is a tunable parameter, called `fail-safe-mode` which can be set to the following parameters:'' |
| 143 | * `standalone` ''[default]: in this case OVS will take responsibility for forwarding the packets if the controller fails'' |
| 144 | * `secure`: ''in this case only the controller is responsible for forwarding packets, and if the controller is down all packets are dropped. '' |