OpenStack Bridge

Openstack Bridge Oview

• Bridge Overview
  

Packet Travel Path I

• Packet From Uplink to GuestOS
  

Packet Travel Path II

• Packet From GuestOS to Uplink
  

Packet Travel Path III

• Vxlan Packet Receive Flow
  
• Create VxLAN Port

  $ ovs-vsctl add-br br0
  $ ovs-vsctl add-port br0 vxlan1 -- set interface vxlan1 type=vxlan \
      options:remote_ip=192.168.1.2 options:key=flow options:dst_port=8472

Packet Travel Path IV

• Virtio net Front-end xmit
  

Reference

• OpenStack Networking
• OpenStack Networking Guide
• Deployment scenarios: Scenario: Provider networks with Open vSwitch, Open vSwitch: High availability using DVR

Related articles

• imb: intermediate queueing device
• ifb: intermediate function block device
• KPTD: Kernel Packet Traveling Diagram