Connectivity Guide

NOTE: Do not use the no openflow or no mode openflow-only command.
OS10# delete startup-configuration
OS10# reload
OpenFlow logical switch instance
In OpenFlow-only mode, you can congure only one logical switch instance. After you enable OpenFlow mode, create a logical switch
instance. The logical switch instance is disabled by default. When the logical switch instance is enabled, the OpenFlow application starts the
connection with the congured controller.
When you create an OpenFlow logical switch instance, all the physical interfaces are automatically added to it.
OpenFlow controller
OS10 is qualied with the following SDN controllers:
• RYU
• Open Network Operating System (ONOS)
To establish a connection with the controller, congure the IPv4 address of the controller and port ID in the OpenFlow logical switch
instance. The default port is 6653. You can connect controllers to the switch in OOB Connection mode. However, you can use any of the
front-panel ports as the management interface using the in-band command. The inband port is removed from the OpenFlow switch
instance and is not controlled by the controller.
The management port MTU is 1532 and the inband port MTU is 9216.
OpenFlow uses the Transmission Control Protocol (TCP) and Transport Layer Security (TLS) protocol for communication.
If the OpenFlow switch loses connection with the controller, the switch immediately enters Fail Secure mode. All the ows the controller
installs are retained on the switch. The ow entries are removed based on the hard or idle timeout that you congure.
OpenFlow version 1.3
This section provides information about OpenFlow version 1.3 specications for OS10.
Ports
An OpenFlow switch supports the following OpenFlow ports:
Table 17. Supported port types
Port types Support
Physical ports Supported
Logical ports Not supported
Reserved ports
(Required) ALL Supported
(Required) CONTROLLER Supported
(Required) TABLE Not supported
(Required) IN PORT Not supported
660 OpenFlow