[113-1] 軟體定義網路及網路功能虛擬化 (曾建超)

1. Environment Introduce & Setup

• Overview introduction
• VirtualBox, Bazel, ONOS, Mininet and OVS Installation

2. Building virtual network

• Build ONOS
• Activate control plane function
• Create a topology controlled with Mininet

1. OpenFlow Messages

• Monitor Traffic between ONOS & Switches
• OpenFlow Message Observation

2. Install/Delete Flow Rules

• Rest, JSON file, and Curl introduction
• ONOS and Topology Setup

1. Build ONOS Application Project

• Environment Setup
• Create an ONOS Application
• Build, Install, Activate, and Reinstall ONOS Application

2. Learning Bridge Function

• Switch functionality: When receives a packet, matches Destination MAC

  • Matched: Forwards packet via specified port
  • Not matched: Packet-in

• ONOS App functionality: When receives a Packet-in

  • Records Source MAC and incoming port (in forwarding table)
  • Looks up Destination MAC (in forwarding table)
    • Not found: Floods Packet-out.
    • Found: Sends Packet-out via designated port and installs flow rule on switch.

3. Proxy APR

• Sender sends ARP Request
• Edge switch Packet-Ins the Request to controller
• Proxy ARP learns IP-MAC mappings of the sender
• Proxy ARP looks up ARP table (For target IP-MAC mapping)
  • If mapping exist: Fetch target MAC and Packet-Outs ARP Reply (with target MAC) to the sender
  • Else (mapping not exist):
    • Floods ARP Request to edge ports except the port receiving ARP Request
    • When h2 receives ARP Request, h2 will Reply ARP packet.
    • Edge switch Packet-Ins the Reply to controller
    • Proxy ARP learns IP-MAC mapping from h2

1. Implement Failover Group Workflow
2. Implement Drop Meter Workflow
3. Intent Service to create Route

Connect to ONOS CLI

ssh -o "StrictHostKeyChecking =no" -o Globa lKnownHostsFile =/de v/null -o UserK nownHostsFile=/de v/null onos@lo cal host -p 8101