HP VAN SDN Controller Administrator Guide v3

Figure 74 Configuration components to modify for hybrid mode support
CAUTION: In ProVision OpenFlow switches, the ip-control-table-mode command option for
including the IP control table in the OpenFlow packet processing pipeline is not supported in release
2.2 of the HP VAN SDN Controller. For more information, see the documentation for the ProVision
OpenFlow switches.
CAUTION: ProVision switch hardware-only mode (shown in the command below) is not currently
supported by the VAN SDN 2.2 controller: openflow instance <instance-name>
flow-location hardware-only. Using this command on a controlled switch may result in
unexpected network behavior, as the controller will not be able to fully initialize controlled switches.
NOTE: OpenFlow 1.0 is the default version of OpenFlow for HP ProVision switches. OpenFlow
does not allow the controller to optimize flow location in hardware tables. For concerns about
line-rate data plane performance, configure all managed switches to use OpenFlow 1.3. Failure
to properly configure the switch in this way may cause packet loss or other problems associated
with high switch CPU utilization.
NOTE: Uncontrolled switches in an OpenFlow Hybrid network are not visible to or controlled by
the HP VAN SDN Controller. Uncontrolled switches are either controlled by another controller
(outside the team) or not controlled at all (traditional networking). Traffic by such switches is
independently managed.
NOTE: The VAN SDN Controller 2.2 Path Diagnostic Tool is useful only when hybrid mode is
disabled. When hybrid mode is enabled, the controller does not monitor or direct all flows in the
network. As a result, the path diagnostic tool (PathDiagnosticManager) does not have visibility
into all flows on the network, and should not be used.
5.3 Coordinating controller hybrid mode and OpenFlow switch settings 79