This section presents simple use cases that can be implemented using the provided Client Applications.

Bridging

The figure below illustrates a simple bridging configuration. Two stations are connected to ports 3 and 4 of the switch and packets are bridged in the switch for these stations to communicate. Station A sends and receives untagged traffic while Station B sends and receives tagged traffic.

Figure 3

Refer to the ofdpa_bridging.py script for an example of setting up this scenario.

IPv4 Unicast Routing

The figure below illustrates a simple IPv4 Unicast Routing configuration. Two stations are connected to ports 3 and 4 of the switch and packets are routed in the switch for these stations to communicate. The packets are routed between VLAN 10 and 11.

Figure 4

Refer to the ofdpa_routing.py script for an example of setting up this scenario.

VXLAN

Purpose

The purpose of this example script is to demonstrate the use of OF-DPA switch to set up a VxLAN tunnel through the OpenDaylight controller.

Topology

Figure 5

The topology setup consists of a Switch running OF-DPA connected to a host. The switch acts as a VxLAN gateway and accepts incoming packets on VLAN 20 and puts them in a VxLAN tunnel. It also serves as Virtual Tunnel End Point and removes the tunnel specific information from the incoming traffic before forwarding it to the host. The host with MAC address of (0000.0000.0011) connects via port 1 to the switch. The neighboring router is connected to the switch via port 5.

Setup

On the switch side start the ofagent application

./ofagentapp -t 10.18.20.219:6633 &

Install VXLAN tunnel configuration OpenDaylight controller set up The OpenDaylight version we tried is SR3 Helium. Install OpenDaylight

tar xf distribution-karaf-0.2.3-Helium-SR3.tar.gz

Start the karaf executable

cd /distribution-karaf-0.2.3-Helium-SR3/bin
./karaf
    ________                       ________                .__  .__       .__     __
    \_____  \ ______   ____   ____ \______ \ _____  ___.__.|  | |__| ____ |  |___/  |_
     /   |   \\____ \_/ __ \ /    \ |    |  \\__  \<   |  ||  | |  |/ ___\|  |  \   __\
    /    |    \  |_> >  ___/|   |  \|    `   \/ __ \\___  ||  |_|  / /_/  >   Y  \  |
    \_______  /   __/ \___  >___|  /_______  (____  / ____||____/__\___  /|___|  /__|
            \/|__|        \/     \/        \/     \/\/            /_____/      \/
Hit '<tab>' for a list of available commands
and '[cmd] --help' for help on a specific command.
Hit '<ctrl-d>' or type 'system:shutdown' or 'logout' to shutdown OpenDaylight.

Install features necessary

opendaylight-user@root> feature:install odl-l2switch-all odl-restconf-all odl-mdsal-all odl-openflowplugin-all odl-adsal-compatibility-all odl-nsf-all

Exit out of Karaf

Open ../etc/opendaylight/karaf/54-arphandler.xml file and change the is-proactive-flood-mode to false. <is-proactive-flood-mode>false</is-proactive-flood-mode>

Start Karaf again

./karaf

Run the file ./vxlan_odl_demo.sh