Installing Open V switch on cons-wm-01

Identifying information:

hostname -f
wm-asngw-01.orbit-lab.org

more /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=9.04
DISTRIB_CODENAME=jaunty
DISTRIB_DESCRIPTION="Ubuntu 9.04

uname -a
Linux wm-asngw-01 2.6.28-18-server #60-Ubuntu SMP Fri Mar 12 05:41:54 UTC 2010 i686 GNU/Linux

ifconfig
eth0      Link encap:Ethernet  HWaddr 00:1f:29:0e:3a:68
          inet addr:10.41.0.3  Bcast:10.41.255.255  Mask:255.255.0.0
          inet6 addr: fe80::21f:29ff:fe0e:3a68/64 Scope:Link
          UP BROADCAST RUNNING ALLMULTI MULTICAST  MTU:1500  Metric:1
          RX packets:636384 errors:0 dropped:0 overruns:0 frame:0
          TX packets:828244 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:176839258 (176.8 MB)  TX bytes:91011015 (91.0 MB)
          Interrupt:17
...

---

9/20/2010

Currently In opt there is an existing open openvsiwtch tarball, but it seems to be for a slightly older version. I've copied the newest stable version from the openvswitch website.

sudo wget http://openvswitch.org/releases/openvswitch-1.1.0pre2.tar.gz

I'm bascially following ​Linux and ​OpenFlow guides.

The build process went as follows:

1. I checked for some prerequisite apt-packages:
   • pkg-configure
   • libssl-dev
   • kernel-headers
   • build-essential
2. Run configure with kernel flag

   ./configure --with-l26=/lib/modules/`uname -r`/build
   

   It ran from /opt/openvswitch-1.1.0pre2. Built kernel modules since the are Needed for the Openflow Implementation.
3. make
4. make install
5. Insert the modules

   insmod datapath/linux-2.6/openvswitch_mod.ko
   

   Dmesg should note the addtion of the module:

   [5343452.547746] Open vSwitch 1.1.0pre2, built Sep 20 2010 17:04:53
   

---

NOT SURE IF THIS IS NEEDED

The final step of the build involves initializing a config database:

http://openvswitch.org/cgi-bin/gitweb.cgi?p=openvswitch;a=blob_plain;f=INSTALL.Linux;hb=HEAD

Once Built we need to start the database server and the switch damemon before we can do any thing with it:

1. Start the server with this command:

   ovsdb-server /usr/local/etc/ovs-vswitchd.conf.db --remote=punix:/usr/local/var/run/openvswitch/db.sock --remote=db:Open_vSwitch,managers --private-key=db:SSL,private_key --certificate=db:SSL,certificate --bootstrap-ca-cert=db:SSL,ca_cert &
   

2. initialize the database using ovs-vsctl (only needs to be done once)

   ovs-vsctl --no-wait init
   

3. Once the database server is started, we next can start the switch server:

   ovs-vswitchd unix:/usr/local/var/run/openvswitch/db.sock &
   

---

We can create Virtual interfaces with the IP command ​IP manual Something of the form

>ip link add type veth

Once this is created, we can add the virtual interface to the open flow switch with ovs-dpctl.

>ovs-dpctl add-dp dp0
>ovs-dpctl add-if dp0 veth0
>ovs-dpctl show
system@dp0:
        flows: cur:0, soft-max:1024, hard-max:1048576
        ports: cur:2, max:1024
        groups: max:16
        lookups: frags:0, hit:0, missed:12, lost:0
        queues: max-miss:100, max-action:100
        port 0: dp0 (internal)
        port 1: veth0