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Mirage OpenFlow Implementation

This setup describes using VirtualBox on OSX with Ubuntu images.

OSX Setup

  1. Manually configure en3 on OSX to 172.16.0.1/255.255.255.0.

  2. Setup bootpd on OSX: sudo /bin/launchctl load -w /System/Library/LaunchDaemons/bootps.plist

    To unload: sudo /bin/launchctl unload -w /System/Library/LaunchDaemons/bootps.plist

  3. Create /etc/bootpd.plist:

    <?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
  <dict>
    <key>Subnets</key>
    <array>
      <dict>
        <key>allocate</key>
        <true/>
        <key>lease_max</key>
        <integer>86400</integer>
        <key>lease_min</key>
        <integer>86400</integer>
        <key>name</key>
        <string>172.16.0</string>
        <key>net_address</key>
        <string>172.16.0.0</string>
        <key>net_mask</key>
        <string>255.255.255.0</string>
        <key>net_range</key>
        <array>
          <string>172.16.0.2</string>
          <string>172.16.0.254</string>
        </array>
      </dict>
    </array>
    <key>bootp_enabled</key>
    <false/>
    <key>detect_other_dhcp_server</key>
    <false/>
    <key>dhcp_enabled</key>
    <array>
      <string>en3</string>
    </array>
    <key>reply_threshold_seconds</key>
    <integer>0</integer>
  </dict>
</plist>

  4. Create /etc/bootptab, eg.,

    %%
# machine entries have the following format:
#
# hostname        hwtype  hwaddr            ipaddr     bootfile
greyjay-ubuntu-1  1       08:00:27:38:72:c6 172.16.0.11
greyjay-ubuntu-2  1       08:00:27:11:dd:a0 172.16.0.12

VirtualBox setup

  1. Build two Ubuntu 10.04 LTS server (64 bit) image.

  2. Set each VM to have two adaptors:

    • eth0 bridged connected to en1 (or en0)
    • eth1 bridged connected to en3

Ubuntu setup

  1. Set ssh keys and adjust sshd_config setting to disallow passwords.

  2. Install packages required to build Open vSwitch et al

    apt-get install openssh-server git-core build-essential \
    autoconf libtool pkg-config libboost1.40-all-dev \
    libssl-dev swig

  3. Pull and build Open vSwitch:

    git clone git://openvswitch.org/openvswitch
cd openvswitch/
./boot.sh 
./configure --with-linux=/lib/modules/`uname -r`/build
make -j6
make && sudo make install
cd ..

    and NOX:

    git clone git://noxrepo.org/nox
cd nox
./boot.sh
../configure
make -j5

  4. Install the kernel module: sudo insmod ~/openvswitch/datapath/linux/openvswitch_mod.ko

  5. Setup Open vSwitch:

    sudo ovsdb-server ./openvswitch/ovsdb.conf --remote=punix:/var/run/ovsdb-server
ovsdb-tool create ovsdb.conf vswitchd/vswitch.ovsschema
sudo ovs-vswitchd unix:/var/run/ovsdb-server
sudo ovs-vsctl --db=unix:/var/run/ovsdb-server init
sudo ovs-vsctl --db=unix:/var/run/ovsdb-server add-br dp0
sudo ovs-vsctl --db=unix:/var/run/ovsdb-server set-fail-mode dp0 secure
sudo ovs-vsctl --db=unix:/var/run/ovsdb-server set-controller dp0 tcp:172.16.0.1:6633
sudo ovs-vsctl --db=unix:/var/run/ovsdb-server add-port dp0 eth0

  6. Set IP addresses on the interfaces:

    sudo ifconfig eth0 0.0.0.0
sudo ifconfig dp0 <whatever-eth0-was>