Administrator's Guide

See the OpenFlow documentation for the specific switch.
See the latest OpenFlow documentation for HP switches for details on how to configure
passive/active mode (where applicable) and for how such switches behave if they lose their
control-plane connection to the controller.
6.3.2 Configuring controller settings to support hybrid mode
Network-related settings on the controller must agree with the controlled switches. Failure to achieve
agreement between the controller’s network-related settings and the settings in the controlled
switches may result in unpredictable network behavior. Table 3 (page 75) lists the specific
network-related controller settings that should agree with managed switches.
Table 3 Controller settings to support hybrid mode
CommentsKeyController Configurations Component
Enable this setting if you
want your controller to
hybrid.modecom.hp.sdn.ctl.of.impl.ControllerManager
operate in hybrid mode
(service restart required).
NOTE: Path Diag Tool
will not work with flowmod
strict mode as that wasn’t
designed to allow PDT to
manipulate flow priority.
The age.multihop.links
when set to true makes
multihop.poll.intervalcom.hp.sdn.disco.of.link.impl.OpenflowLinkDiscoveryComponent
multihop.poll.interval valid.
So whatever interval is set
for this key becomes the
polling interval for
multi-hop links. Using
polling interval use can
control how fast the
multi-hop links need to be
purged from controller if
they are no longer active
in the network. If
age.multihop.inks flag is set
to false then multi-hop links
are not polled for their
liveliness and never get
purged from controller even
if they have gone down.
Flag indicating whether
multihop link aging is
age.multihop.links
enabled. Enable this setting
if there are switches in the
network that are not
controlled by the controller,
but the topology across
these switches must be
visible to the controller.
That is, if any controlled
OpenFlow switches in the
same OpenFlow instance
are separated by
non-OpenFlow switches,
use this setting.
6.3 Coordinating controller hybrid mode and OpenFlow switch settings 75