Open Flow Add-on

A SDN OpenFlow Switch and SDN Wi-Fi Infrastructure Mode Network

EstiNet_10.0_Brief__SDN_OpenFlow_Switch_20170814.00 EstiNet_10.0_Brief__SDN_OpenFlow_AP_20170814.00

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Overview

OpenFlow module is an optional add-on to EstiNet network simulator and emulator. In a SDN (Software-Defined Networking) network, OpenFlow, as a control protocol, is used between a controller and a switch. With this add-on module, a simulated OpenFlow-enabled Ethernet switch can support in-band control plane or out-of-band control plane through which it is controlled by a controller or multiple controllers. A commercial or open-source controller software can be used to control the simulated OpenFlow switches directly in a simulated SDN network. To comply with OpenFlow protocol, the simulated switch also supports the operations of flow table(s), group table and meter table. Users can observe flow table(s), group table and meter table during simulation or at simulator playback status.

By using OpenFlow-enabled access point and switch devices, users can simulate a SDN Wi-Fi infrastructure network. This simulation platform is suitable for the SDN researches of dynamic and centralized network traffic engineering, network access control, etc.

Key Features and Benefits

Support OpenFlow-enabled Switches and OpenFlow-enabled AP with Switch

Multiple simulated OpenFlow-enabled switches can be connected together to form a SDN network in the simulation environment. By developing SDN controller applications to use switch resource, the functionality and scalability of newly-invented SDN applications can be tested and evaluated under this environment. By using OpenFlow-enabled access point and switch devices, users can simulate a SDN Wi-Fi infrastructure network. This simulation platform is suitable for the SDN researches of dynamic and centralized network traffic engineering, network access control, etc.

Compatible with Real-world Controllers

A Linux-based SDN controller program can be directly run up on a simulated SDN network to control those simulated OpenFlow-enabled switches. If the given controller is not a Linux-based software, the emulation mode of EstiNet can support the interconnection between an emulated SDN network and the given controller. The simulated/emulated SDN network helps test the functionalities of SDN controller application and debug the design flaws and operation errors.

Major Functions for SDN Network

OpenFlow Operations
  • Simulated OpenFlow-enabled AP and Switch Devices
  • OpenFlow v1.3 Message
    • Controller-to-Switch Messages
      • Multiple-Controllers Operation
    • Asynchronous Messages
    • Symmetric Messages
  • OpenFlow v1.3 Table
    • Flow Table
      • Multiple Flow Tables
      • All Match Fields but OFPXMT_OFB_PBB_ISID
      • All Instructions & Actions
      • Per-table Counters & Per-flow Counters
    • Group Table
      • 4 Group Types (all, select, indirect, and fast failover)
      • Per-group Counters & Per-bucket Counters
    • Meter Table
      • 2 Band Types (drop and dscp remark)
      • Per-meter Counters & Per-band Counters
Wi-Fi Infrastructure-mode Features (only for OpenFlow-enabled AP and Switch)
  • Wi-Fi AP & STA Communication
  • IEEE 802.11a/g/n Protocol with EDCA
  • Channel Models

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