1. GFE Control Panel
Guy Ezra
Prof. Ran Giladi
Mr. Niv Yemini

2. Introduction Project’s Goal Software Design Implementation and Testing
Creating configuration platform for the GFE system
Software Design
Implementation and Testing
Communication Protocols – VLAN
Local and Remote
GFE Control Panel

3. What’s GFE ? General Forwarding Element Generic and flexible:
Forwarding, Processing, Multicast, Encapsulation/De-capsulation, QoS and more.
XML based API
Based on Logical Functional Blocks (LFBs)
GFE Control Panel

4. What’s the Problem GFE Programming is currently done using:
Native API
Supported programming protocol (e.g., ForCES and OpenFlow)
Inconvenient for developers
Generic and Dynamic approach
GFE Control Panel

5. GFE Control Panel Interface

6. General Command line style
Commands are actually Scripts – Generic configuration
Commands are organized in hierarchically ordered, technology oriented, categories
Categories and their respective commands are loaded on initialization – not hard coded
Enables remote operation
GFE Control Panel

7. GFE CP Components Diagram
Settings
Inner Commands
System Commands
Command
Category
GFE Control Panel
GFE
GFE CP Components Diagram
GFE Control Panel

8. GFE CP Interface Features
Command line style Interface
GFE Control Panel

9. GFE CP Interface Features
Using scripts for editing the LFB definitions
GFE Control Panel

10. Scripts
Manual
Signature
Command Lines
GFE Control Panel

11. Scripts A script has 3 parts: Manual header ( “//” ) Signature line :
procedure ReturnValue = CommandName( arg1, arg2 )
Arguments are passed by order, as in programming function.
Script command lines
GFE Control Panel

12. Scripts Structure
Variables
Functions
“Voids”
Loops
GFE Control Panel

13. GFE CP Interface Features
Getting help is easy
GFE Control Panel

14. GFE CP Interface Features
Logging
Debugging
Reverse Operation
GFE Control Panel

15. Executing Scripts 1 5 7 3 create GFE@CP > VLAN
Par1
Par2
Par3 5 7 3
create
Classifier
Forwarder
Mapper
Settings
GFE Control Panel

16. Executing Scripts ScriptRunner 2 ScriptFile ScriptLogger Variables
Classifier
Par1
Settings
Forwarder
Par2
Mapper
Par3
GFE Control Panel

17. Get line from ScriptFile
Executing Scripts
Get line from ScriptFile
Execute Line
Handle Result
ScriptFile
Variables
ScriptLogger
Settings
Classifier
Forwarder
Mapper
GFE Control Panel

18. Executing Scripts Lines
Function Execution Result
F_Function
Execute Function
Script Error
ScriptFile
Variables
ScriptLogger
Settings
Classifier
Forwarder
Mapper
GFE Control Panel

19. Executing Scripts Lines
ScriptLogger
ScriptLogger
GFE Control Panel

20. GFE Control Panel The Interface can work either locally or remotely
In order to remotely access the GFE, a Web Services bundle has been created
GFE Control Panel

21. GFE Control Panel Web Service

22. GFE Web Service Enabling remote operation Stand Alone component
Including a Client-side module and a Server-side application
SOAP Approach
GFE Control Panel

23. Web Service Architecture
Client
Server
GFE System
Client Program
GFE Web Service
GFE Tables
GFE Control Panel

24. GFE Web Service API XML XML XML
Client
Server
XML
Classifier
Web Server
GFE Handle LFB Load
XML
Forwarder
GFE Tables
XML
Mapper
GFE Control Panel

25. Future Work
Finalizing the GFE Control Panel Interface and Web Service as a product
Adding functionality to scripting, as required by complex protocols, to be tested with the GFE system
Creating other configuration programs, such as web based interfaces, using the GFE Web Service
GFE Control Panel

26. Thank You!