Deployment Guide

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You can also see the management configuration information that is stored in the switch configuration and
shown in the running configuration:
"Management Interface":
{
"dhcp": false,
"ip address": "172.25.11.94/27",
"ip gateway": "172.25.11.254"
},
"SSH Service":
{
"enabled": false
},
"Telnet Service":
{
"enabled": true
}
5.4 Configure Controller Communications Channel
Since it is a pure OpenFlow switch, before the DNOS-OF switch can be used to control any switch traffic a
communications channel to the OpenFlow controller must be set up. This is done using the commands in the
following sections.
In the previous release of DNOS-OF 1.0, only one OpenFlow controller connection was supported. In DNOS-
OF 1.1, up to 10 simultaneous controller connections are supported. The CLI for configuring the OpenFlow
controller connection was modified to allow this as shown below.
Details of the new commands added to work with the Global OpenFlow Configuration and OpenFlow
Controller Configuration are listed in the CLI reference, but their use in creating a controller communications
channel are shown in the examples below.
5.4.1 Example Multitable (Ryu) Controller Configuration
The multitable controller communication channel configuration used with controllers such as Ryu is simpler
than that required by the singletable communications channel connection used by NEC. Below is an example
of setting up the multitable controller communications channel:
1) First set the table processing mode to multitable.
4TBK0Z1_console> set openflow mode multitable
OpenFlow table processing mode set to multitable
2) Set up the multitable mode HA features if desired. Only some of the HA features are used for multitable
mode, as shown below. For a full description of what each command does see the CLI Reference in the
appendix.
4TBK0Z1_console> set openflow hafeature <enabled | disabled>
Sets the current openflow HA feature mode enabled or disabled (echo timers, retries, failover timers, delay
times, etc.)
4TBK0Z1_console> set openflow hafeature enabled
4TBK0Z1_console> set openflow maxretries 5
OpenFlow controller connection max retries set to 5