WB 15.15

fail-standalone

If the switch loses connection with all controllers, packets of new flows are

handled by the legacy switching and routing functions. Existing flows of this

OpenFlow instance are removed.

Setting maximum backoff interval for an instance

You can specify the maximum interval between two consecutive attempts to connect to a controller

by an OpenFlow instance. The interval between two consecutive attempts increases exponentially

until it reaches the specified value. All subsequent attempts use the specified value.

Syntax

openflow instance { instance-name | aggregate }

max-backoff-interval secs

instance-name

Sets the backoff interval for the named instance.

aggregate

Sets the backoff interval for the aggregate instance.

secs

Default: 60 secondsRange: 1 — 3600 seconds

Configuring IP Control Table Mode

Includes IP control table in the OpenFlow packet processing pipeline. Default disabled.

Syntax

openflow # [no]

ip-control-table-mode

Include IP control table in the OpenFlow packet processing pipeline. Default disabled.

Configure OpenFlow controller ports

An OpenFlow controller is configured globally under OpenFlow context and associated with an

instance under instance context (see “Entering OpenFlow instance context” (page 15) for more

information). OpenFlow controller traffic cannot be “in-band” or transit on a VLAN managed by

OpenFlow and must transit on a VLAN not managed by OpenFlow.

OpenFlow controller traffic and OpenFlow traffic can transit on the same port, as long as they use

different VLANs.

The VLAN chosen for OpenFlow controller traffic depends entirely on the IP address of the controller,

and no specific configuration is needed. Thus the switch must have a proper IP configuration, and

the controller address must be part of a subnet that is not on an OpenFlow VLAN.

For information on how to either manually assign an IP address to the switch or set it up to perform

DHCP queries, see the ‘Configuring IP Addressing’ chapter in the Basic Operation Guide for your

HP switch.

Each OpenFlow instance can be controlled by up to three OpenFlow controllers and each generates

OpenFlow commands and data flows between an OpenFlow switch and the controller.

24 Configuring OpenFlow