Lark Openflow Demo

Switch (non-openflow) s-cssc-b240-5 provides connectivity to the Lark infrastructure:

• Gi1/0/4 - management interface em1 on host 'ofswitch' (vlan 1420)
• Gi1/0/5 - openflow interface em2 on host 'ofswitch' (vlan 3325)
• Gi1/0/5 - openflow interface eth1 on host 'lark01' (vlan 3325)
• Gi1/0/40 - management interface eth0 on host 'lark01' (vlan 1420)

Host 'ofswitch'

• runs the cisco one openflow controller at http://128.104.59.140:8080
  Run via java /root/cisco/org.eclipse.osgi.jar in a screen session. Use screen -r as root to re-attach.
• See LarkOpenflowDemoFlows
• hosts the web demo software at http://128.104.59.140
  Files are in /var/www
• runs openvswitch

  $ sudo /usr/local/bin/ovs-vsctl show
  64c3b37c-2f7a-4724-baad-aa4d5fa43649
      Bridge of-switch
          Controller "tcp:0.0.0.0:6633"
              is_connected: true
          Port of-switch
              Interface of-switch
                  type: internal
          Port "p1p1"
              Interface "p1p1"
          Port "p1p2"
              Interface "p1p2"
          Port "p1p3"
              Interface "p1p3"
          Port "p1p4"
              Interface "p1p4"
      ovs_version: "1.9.90"
  

• Alan took snapshots of /var/www on ovswitch in late January to capture the web interface.
  This isn't a proper repository of any sort, just tarballs.
  They are at /afs/cs.wisc.edu/p/condor/workspaces/adesmet/lark/demo-live-backups

Host 'lark01'

• Runs a self-contained lark enabled htcondor
• Relevant demo files are in /home/larkdemo (in there is a README file that goes into more detail) and /etc/condor:
• repository is at /afs/cs.wisc.edu/p/condor/workspaces/adesmet/lark/demo-201301 which is a non-bare git repository.
  The copies in /home/larkdemo on lark00 or lark01 are just copies.
• Runs dnsmasq:

  dhcp-range=128.104.50.128,128.104.50.254,255.255.255.0,20m
  
  # default route
  dhcp-option=3,128.104.50.1