H3C Technologies H3C S5120 Series Switches - Manual (Page 17)

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Step Command Remarks
2. Enter OpenFlow instance
view.
openflow instance instance-id N/A
3. Activate or reactivate the
OpenFlow instance.
active instance
By default, an OpenFlow instance
is not activated.
Configuring controllers for an OpenFlow switch
Configuring controllers and main connections
An OpenFlow switch supports up to 8 controllers. However, the OpenFlow channel between the
OpenFlow switch and each controller can have only one main connection, which uses TCP or SSL. The
main connection must be reliable and processes control messages to complete tasks such as deploying
entries, obtaining data, and sending information.
To specify a controller for an OpenFlow switch and configure the main connection to the controller:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter OpenFlow instance
view.
openflow instance instance-id N/A
3. Specify a controller and
configure the main connection
to the controller.
controller id address { ip
ip-address | ipv6 ipv6-address }
[ port port-number ] [ ssl
ssl-policy-name ]
By default, an OpenFlow instance
is not configured with any main
connection.
Setting the connection interruption mode
An OpenFlow switch is set to either of the following modes when it is disconnected from all controllers:
• Secure—In this mode, the OpenFlow switch forwards traffic based on flow tables and does not
delete unexpired flow entries.
• Standalone—The OpenFlow switch uses the normal forwarding process.
To set the connection interruption mode for an OpenFlow switch:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter OpenFlow instance
view.
openflow instance instance-id N/A
3. Set the connection
interruption mode.
fail-open mode { secure |
standalone } By default, the secure mode is
used.