open/download tutorial
Contents
1. Network resources Openflow OpenFlow Aggregate UEssex OF Aggregate A Name UEssex OF Aggregate Status Physical location Colchester Resources OpenFlow Switch 00 00 00 00 00 00 00 01 Port 12 OpenFlow Switch 00 00 00 00 00 00 00 01 Port 11 OpenFlow Switch 00 00 00 00 00 00 00 01 Port 24 OpenFlow Switch 00 00 00 00 00 00 00 03 Port 24 OpenFlow Switch 00 00 00 00 00 00 00 03 Port 12 OpenFlow Switch 00 00 00 00 00 00 00 03 Port 13 OpenFlow Switch 00 00 00 00 00 00 00 03 Port 23 OpenFlow Switch 00 00 00 00 00 00 00 03 Port 11 OpenFlow Switch 00 00 00 00 00 00 00 02 Port 8 IP Source 192 168 20 50 192 168 20 60 OpenFlow Switch 00 00 00 00 00 00 00 02 Port 23 IP Destination 192 168 20 50 OpenFlow Switch 00 00 00 00 00 00 00 02 Port 24 192 168 20 60 OpenFlow Switch 00 00 00 00 00 00 00 02 Port 9 OpenFlow Switch 00 00 00 00 00 00 00 04 Port 13 OpenFlow Switch 00 00 00 00 00 00 00 04 Port 23 OpenFlow Switch 00 00 00 00 00 00 00 02 Port 7 OpenFlow Switch 00 00 00 00 00 00 00 04 Port 12 OpenFlow Switch 00 00 00 00 00 00 00 04 Port 9 OpenFlow Switch 00 00 00 00 00 00 00 04 Port 10 OpenFlow Switch 00 00 00 00 00 00 00 04 Port 11 OpenFlow Switch 00 00 00 00 00 00 00 04 Port 8 OpenFlow Switch 00 00 00 00 00 00 00 04 Port 7 Openflow controller tcp 10 216 22 5 12345 Set controller Actions Book Openflow resources Figure 8 OFELIA Slice Management Page Area Network Resources OpenFlow2. and manage your experiment s login to the OFELIA Control Framework as described in the previous section Upon successful login you are forwarded to the Expedient Dashboard On the Expedient Dashboard you can manage your experiment projects manage your account reset password and if you have the respective rights manage project memberships and get help Help can be obtained in three ways from documentation the help desk and a discussion mailing list Page 9 of 20 OFELIA Tutorial Dashboard Account Logout Home Welcome sibylleschaller Projects Name Owners Members Slices Actions Create Figure 5 OFELIA Expedient Dashboard at First Login 3 1 Managing Projects New projects in OFELIA are initiated by clicking on the Create Button under the projects table on the Expedient Dashboard Figure 5 If you do not have the permission to create projects you are offered the possibility to send a message to the island manager or another trusted user to grant you the permission to create your project With this request you should provide the project s descriptive name and a short description of the project Make sure you have set your affiliation in your user profile or specify it in the message You can see and participate in projects for which you have been granted permission These permissions are usually granted by the project owners For new projects this permission is usually granted by the island manager Once the
3. the VMs belonging to your slice and de allocate the OpenFlow FlowSpace resources Please also clean up by deleting the VMs you allocated make sure to save your data before and the experiment s slice Page 19 of 20 OFELIA Tutorial 5 Conclusion In this tutorial we provide a concise description on how to register and experiment on the OFELIA OpenFlow based experimental facility The facility is open as a best effort service free of charge for external users that agree with the OFELIA Usage Policy The tutorial covered general information about the project how to get access to the facility and its islands how to set up and run experiments Experiments in OFELIA are managed via a graphical web based user interface the OFELIA Expedient GUI For each step a user takes the screenshot pictures show the respective pages in the GUI with example content After you have gain hands on experience with our facility we would appreciate if you would fill out the questionnaire that we use to collect feedback No personal information will be collected All experiment related information will be anonymized and only made public in an aggregated manner Through your answers and suggestions we will improve the facility and make it suitable for hosting your research ideas You find the questionnaire at the following link https www surveymonkey com s 3KRW8FM 6 Acknowledgements The EU OFELIA project a collaborative project within the European Commis
4. 7 ofelia eu doc index php Testbed Belgium Wilab Virtual Wall https alpha fp7 ofelia eu doc index php Testbed Belgium Virtual Wall Link to island Expedient GUI https exp ibbt fp7 ofelia eu Page 4 of 20 Island Z rich ETH Barcelona i2CAT Essex UEssex Rome and Catania CNIT Trento CREATE NET OFELIA Tutorial Brief description Connection to OneLab and GENI Link to island detailed status and resources information https alpha fp7 ofelia eu doc index php Testbed Zurich Link to island Expedient GUI https exp ethz fp 7 ofelia eu L2 switches and Optical equipment ROADM ring Link to island detailed status and resources information https alpha fp7 ofelia eu doc index php Testbed Barcelona Link to island Expedient GUI https exp i2cat fp7 ofelia eu National hub for UK optical community L2 switches and L1 LO ROADMs optical mesh network FPGA testbed Link to island detailed status and resources information https alpha fp7 ofelia eu doc index php Testbed Essex Link to island Expedient GUI https exp uessex fp 7 ofelia eu Two islands with focus on Information Centric Networking Under deployment as of July 2012 A city wide distributed island based on L2 switches and NetFPGA opt in users via heterogeneous access technologies Link to island detailed status and resources information https alpha fp7 ofelia eu doc index php Testbed_ Trento Link to island Expedient GUI https exp crea
5. Aggregate Computational resources Virtual Machines A VT Aggregate UEssex VT Aggregate A Name UEssex VT Aggregate Status Physical Colchester location Resources Server Name Virt Tech Operating System Memory Operating System Memory Actions Q nevtesti running GNU Linux Debian 6 0 128 10 216 22 5 Stop Reboot Server Name Virt Tech Operating System Memory Disc VM Name Operating System Memory Mgmt IP Actions Q nevtest2 running GNU Linux Debian 6 0 128 10 216 22 6 Stop Reboot Server Name Virt Tech Operating System Memory VM Name State Operating System Memory Mgmt IP Actions Q nevtest3 running GNU Linux Debian 6 0 128 10 216 22 7 Stop Reboot Figure 9 OFELIA Slice Management Page Area Computational Resources VT Aggregate Page 15 of 20 OFELIA Tutorial Error sterting slice Shce 1 Cont stert slice Sice i beceuse controller url is not set Sermar diy ost Home gt Project VeryFirstTestProject gt Slice Slice 1 gt Allocate Openflow and PlanetLab resources 1 Select OpenFlow Ports 2 Select Flowspace Topology Tip Move cursor over the icons to get extra information Select OpenFlow Resources OpenFlow Aggregate NEC OpenFlow AM a location Heidelberg Germany Connections Port and Remote Port 00 00 00 00 00 01 00 01 Tp Next Ciar Selectam Select Tree Figure 10 OFELIA OpenFlow Resource Allocation page Page 16 of 20 OFELIA Tutorial Flowsp
6. OFELIA tutorial Abstract The EU OFELIA project http www fp7 ofelia eu has set up an OpenFlow based experimental testbed that is distributed over several European countries and also offers connectivity with other testbeds worldwide The OFELIA facility is open as a best effort service free of charge for external users that agree with the OFELIA Usage Policy This Tutorial is a concise description how to register and experiment on the OFELIA facility Our goal is to make it easy for all to understand how to become a user and how the facility can be used Contents 1T TALPODU CH ON scenene ae EE a EE EE E E EE 2 Del Wats OFELIA E N E dadassasdandexetaouseats 2 1 2 What does OFELIA Offer c icc costecssesetececanstovanitntase avativveuextedesaetl deemed senteaasveenseiate Eaa 3 1 3 Running Experiments in OFELIA High Level View ccscccccccecsssessseeceeecscessesssaeceeeeessesesneaeeeeeens 5 2 Getting Access td OFELIA eisereen EEEa pea anssexenedasds cuenasetssBaseset Suases ssebeddsctonssetecteadess 6 2 1 Register sesir t ee teen setese esti a E E A E AE EEEE a Grtace eee Gs 6 2 2 Configure the VPN to Access the OFELIA Testbed ccccccccsssccceeseeecsesseeecseaeeeceesaeeecsesaeeeeeeaaes 7 2 3 Login to the OFELIA Control FrameworK ssssesssssssssssesrrssssssrrernrssssssrrernnssssesrrennnssssesnneennssssenne 9 3 Setting upan EXPeriMeEnt reccvccccccssassctcecacaceespcsood cavaaatecspetneduexaaatasvoaccdeesndac
7. ace 1 unsaved Field From To Q MAC Source Destinniicn Ethernet Type VLANID Q IP Source IP Destination OQ IP Protocol TCP UDP Source Q TCP UDP Destination Aggregate NEC OpenFlow AM Port 48 on OpenFlow Switch 00 00 00 00 00 01 00 01 Ports OQ Delete Figure 11 Fields to define OFELIA FlowSpace Home gt Project test_proj gt Slice testing slice gt Allocate Openfiow and PlanetLab resources OpenFlow Information for Slice testing slice The following settings will apply to all OpenFlow aggregates in the same slice QOpenFliow controller URL tep 10 216 22 5 12345 QO Password opentiow Figure 12 OFELIA Page for Setting the Controller IP Address Page 17 of 20 OFELIA Tutorial 4 Running an experiment 4 1 Start Experiment When you have configured your experimental OFELIA slice as described in the previous sections you are ready to start Start the slice for your experiment by clicking on the Start Slice button on the Slice Management page Error Reference source not found This will trigger a FlowSpace request to the island manager and start all the VMs in your slice that are not yet active Until you receive the FlowSpace approval by the island manager your FlowSpace has not yet been granted and cannot be used Only granted FlowSpace is installed know in the FlowVisor that handles the slicing of the overall OFELIA OpenFlow resources See Figu
8. an login to all your VMs using your OFELIA credentials Install on the VMs all Software that is needed for your experiment The OpenFlow controller can also be installed on one of your VMs Make sure your controller s IP address and port are set correctly You may use one of the controllers pre installed on the VM images eg NOX Snac You can also install your own controller If your FlowSpace contains VLANs assigned by the island manager then you have to install VLAN package on your VMs and then use the VLAN based interfaces as the experimental interface Example If the experimental interface is ETH1 and VLAN assigned by Island manger is 5 then do e Add VLAN vconfig add ethI 5 e Use ifconfig to assign an IP address to the VLAN interface ifconfig eth1 5 192 168 1 100 netmask 255 255 255 0 broadcast 192 168 1 255 up e Get detailed information about the VLAN interface cat proc net vlan eth1 5 Run your experiment Collect and store the results You may stop your active slice to make a pause in your experiment or to re configure your slice While you are pausing all or parts of your FlowSpace may be allocated to another experiment slice So when re starting your slice the island managers FlowSpace approval is required again 4 3 Clean Up After Experiment After you finished your experiment stop your slice by clicking on the Stop Slice button on the Slice Management page Figure 7 pg 13 This will stop all
9. ble these configurations All the OFELIA users should accept and follow the Facility Usage Policy 2 3 Login to the OFELIA Control Framework After successful registration and OpenVPN setup you can login to the OFELIA Control Framework User Interface You will be forwarded to the Expedient Dashboard OFELIA s Control Framework Web interface is called Expedient and is one of the components of the OFELIA Control Framework It enables experimenters to create and run experiments within the OFELIA autonomous and federated facilities Through this user interface you can instantiate and deploy experiments which may include virtual machines switch configurations and other resources The control framework handles the separation of the experiments the starting and stopping of virtual machines and experimental slices and displays resource states You first have to decide on which testbed island you want to login usually this is your home island Point your browser to the island URL of your choice OFELIA island URLs have the form https exp ISLANDID fp7 ofelia eu For the exact URLs please refer to Table 1 on page 4 Make sure your OpenVPN connection into OFELIA is up and running before trying to reach your selected island s Expedient via the web browsers After providing your login credentials you will be directed to the OFELIA Expedient Dashboard see Figure 5 Your credentials are valid across all islands 3 Setting up an Experiment To set up
10. come to the Ofelia Federation In order to use the configuration web application and to enter the experiment network of Ofelia please download the OpenVPN configuration and fire up your OpenVPN The minimum requirements for the tunnel to work is OpenVPN 2 x x and optionally resolvconf to update your DNS e g sudo apt get install resolvconf Please refer to the documentation wiki for setup After opening the tunnel please visit Expedient Please see the wiki for links and more information Please also see the official Ofelia website Figure 4 OFELIA Experimenter Welcome Page Page 8 of 20 OFELIA Tutorial You download the OpenVPN configuration click on the hyperlink behind this text which is needed to access the OFELIA control framework Use the ofelia conf file to configure your OpenVPN and install the security certificate ca ofeliarouted crt Both are contained in the configuration tarball OpenVPN must be installed on your machine For a detailed description on how to set up the VPN please refer to the OFELIA user manual at https alpha fp7 ofelia eu doc index php VPN setup Make sure that your DNS is set up appropriately to automatically resolve the internal OFELIA DNS names The OFELIA DNS IP address is 10 216 24 2 The address is also provided at this page https alpha fp7 ofelia eu doc index php Working with the OFELIA Control Framework Registration and logging You may have to ask your system network administrator to ena
11. enerated e mail for confirmation After the confirmation you will receive another email that your registration was successful The e mail contains a link to the OFELIA login page and your login Page 6 of 20 OFELIA Tutorial For project information please see the official Ofelia website Name Email Password Password confirmation Organization Home Island accept the usage policy Read the usage policy here Public key 1148 iro Geben Sie die 2Worter ein A ReCAPTCHA LMF Com read books Figure 2 OFELIA Page for Registration of New Users 2 2 Configure the VPN to Access the OFELIA Testbed For security reasons OFELIA s experimental environment is accessible only via gateways Connecting to the facility happens through OpenVPN connections through the hub in Ghent After successful registration you login to OFELIA via https fuzzy eict fp7 ofelia eu please see Figure 3 for the screenshot Use your login and password credentials If you forgot your current password you can reset it by clicking on reset your password Page 7 of 20 OFELIA Tutorial No login Please register Password forgotten Please reset your password Figure 3 OFELIA Page for Login to OFELIA Upon successful login you will be directed to the OFELIA welcome page see Figure 4 which contains the OFELIA OpenVPN configuration tarball and the links to the manual documentation wiki and the OFELIA public website Wel
12. escriptions of the islands An exemplary and not exhaustive list of experiments that can be run over OFELIA is Ability to run OpenFlow applications on user controller NOS networking operating system e g routing monitoring PCE apps to make best use of OpenFlow abstractions Testing of new forwarding and routing protocols using OpenFlow as the basic enabling protocol and API Experiments leveraging virtualization capabilities VMs sliced resources to create virtual networks and use them for testing layer 2 and above virtualization schemes Experiments where real end users can contribute opt in real traffic in order to test realistic experimental scenarios Experiments over wireless networks WiFi based Emulations of large wired and wirless networks Experiments on an optical OpenFlow based network Information Centric Networking related experiments Note the above list is incomplete and unordered Table 1 The OFELIA islands brief description and links to detailed information Island Brief description Berlin TUB Partial replacement of existing campus network with OpenFlow enabled switches Link to island detailed status and resources information https alpha fp7 ofelia eu doc index php Testbed Berlin Campus Link to island Expedient GUI https exp tubit fp7 ofelia eu Ghent IBBT Central hub large scale emulation Link to island detailed status and resources information WiLab https alpha fp
13. eseseceeecessesesaeaeeeeecesseseaaeseeesecsssessaaeaeeeeeens 8 Figure 4 OFELIA Experimenter Welcome Page ccccsessssscececeesesenneseceeecesseeaaeaeeeeecesseseaaeaeeeeeesssessaeaeeeeeess 8 Figure 5 OFELIA Expedient Dashboard at First Login ccccccsssssssececececessesnsaecececesssseaeaeeeeesessessneaeeeeeens 10 Figure 6 OFELIA Project Management Page ccccsssscsssssssecceeseseseeeseaeaeaeseaeaeaeaeaeaeaeaeaeaeaeaeaeaeaeaeaeananaea 11 Figure 7 OFELIA Slice Management Page cccccccccssssssssececccscsesesseaeeececseeeseaeaecesecsseeeeaeaeeeeecesseseaeaeeeesens 13 Figure 8 OFELIA Slice Management Page Area Network Resources OpenFlow Aggregate cccc0e 15 Figure 9 OFELIA Slice Management Page Area Computational Resources VT Aggregate cccceee 15 Figure 10 OFELIA OpenFlow Resource Allocation Page ccssesssssecececeeessesnesecececseseseaeaeeeeeeeesesesaeaeeeeeens 16 Figure 11 Fields to define OFELIA FIOWS pace o cececssssscecececsssessnaeceeecsceesesasaeceeecsseesesaaaeeeeecessesensaeeeeeens 17 Figure 12 OFELIA Page for Setting the Controller IP Address c cccccccscssssssssecececesssseseaeeeeecessessaeaeeeeeens 17 Figure 13 Example FlOWS pace ors oscssceseidececsvancd eee daguedes vasecete ledeck ss vancdeevedevtes eaae aaiae i aaae SEE E aereas 18 1 Introduction The EU OFELIA project http www fp7 ofelia eu has set up an OpenFlow based experimental testbed that
14. f resources that may be reserved for and used in experiments OpenFlow resources Virtual Machines They are created by the island managers and are local to their respective island Therefore if you create cross island experiments you will have to add to your project the respective aggregates from all islands Page 11 of 20 OFELIA Tutorial involved in your experiment The project management page of the Expedient GUI shows the name type location description and operational status of each AM Note that after slice expiry the island manager can preempt your reserved resources Usually the island manager waits for a threshold physical memory etc and then sends a notification email to the user before deleting the resources 3 2 Slices for Experiments Slices compose the base of runnable experiments When creating a new slice slice information such as name description and expiration date the slice life time must be provided The expiration date of a slice cannot be later than 30 days from the time of its creation The island manager s may notify you about the expiry some days before it occurs Update the slice s expiration date if needed If the slice s life time expires the slice s OpenFlow resources will be de allocated and the VMs stopped After slice expiry the island manager will remove the resources after some time Usually the island manager waits for a threshold physical memory etc and then sends a notification to the
15. is distributed over several European countries and also offers connectivity with other testbeds worldwide This Tutorial is a concise description of how to register and experiment on the OFELIA facility More detailed information about OFELIA and its resources can be found on the OFELIA website and user manual The OFELIA facility is open as a best effort service free of charge for external users that agree with the OFELIA Usage Policy 1 1 What is OFELIA OFELIA is a collaborative project within the European Commission s FP7 ICT Work Programme Its name stands for OpenFlow in Europe Linking Infrastructure and Applications The OFELIA project offers a Pan European testbed to the research community for conducting experiments in an OpenFlow enabled wide area network The flow based virtualized OFELIA environment enables researchers to change the network behavior as a part of their experiments on innovative network protocols and applications The aim of OFELIA is to provide an experimentation space which allows for flexible integration of test and production traffic by isolating the traffic domains inside the OpenFlow enabled network equipment Page 2 of 20 OFELIA Tutorial This allows for providing realistic test scenarios and for seamless deployment of successfully tested technology The OFELIA experimental facility is based on OpenFlow technology that allows researchers to not only experiment on a test network but to control the net
16. island manager approves your request he she will create your project and adds you as the owner researcher with full permissions on your project On the Expedient Dashboard Figure 5 you see the projects listed that you own and or are a member of For each project its name the owner and the project members are shown as well as the slices defined under the project and possible actions Select details in the Actions column of a project to see its details and manage the project On the Project Management page Figure 6 you find general information about the project project members and their roles as well as slices in the project and the aggregates whose resources are used in the project Page 10 of 20 OFELIA Tutorial Swcceaidly crested projet Tey Project Error sterting slice Shce 1 Cent stert slice Sice 1 beceuse controller url Home gt Project TestMyProject Project TestMyProject test my project Actions remove update Aggregates Q This project has no aggregates added to it To De able to create slices that can reserve resources on aggregates you will need to add aggregates to the project Slices Descripti The owner role is a special role that has permission to do By default users with the researcher role can only creste slices and Create Role Figure 6 OFELIA Project Management Page Resources in OFELIA are managed by so called Aggregate Managers AMs Aggregates are types o
17. lice 1 in Project VeryFirstTestProject Slice status Description Topology Tip Move cursor over the icons to get extra information Slice AMs and resource details O Add an Agregats Manager to the current slice Network resources Openflow Computational resources Virtual Machines Figure 7 OFELIA Slice Management Page Page 13 of 20 OFELIA Tutorial 3 3 OpenFlow Resource Allocation On the Slice Management page Figure 8Error Reference source not found in the OpenFlow Aggregate area click on the button Book OpenFlow resources You will see the list of data paths consisting of id and port number that are available in your slice Figure 10 Select the data paths that you want for your experiment and click next to define your FlowSpace You define FlowSpaces with the help of tables Each table Figure 11 describes a class of traffic you would like your controller to receive Each field is specified as a range Empty cells mean any value The tables are OR ed together to produce a rule Empty tables are unused If you need more FlowSpaces than shown click the button Save and additional empty tables will be displayed Example If you want to receive all incoming and outgoing port 80 traffic then you will need two tables In the first you would set the TCP UDP Destination field to 80 In the second you would set the TCP UDP Source field to 80 3 4 Virtual Machine Allocation In the Co
18. mputational Resources area Figure 9Error Reference source not found on the Slice Management page Figure 8Error Reference source not found click on the button Create VM and fill in the information requested in the form presented e Name This is your name for the virtual machine e Memory Specify the required RAM memory in MB e Disc Image At the moment only the Default image is available e HD Setup Type At the moment only File Image is available e Virtualization Setup Type At the moment only paravirtualization is available During the creation process the VM will be granted an IP which will be displayed in the Topology Panel and the Computational Resources area This IP is reachable from any PC inside the OFELIA s VPN VMs are started stopped rebooted or deleted by clicking on the respective action link in the Computational Resources area Create as many VMs as needed for your experiment You can SSH to the VMs using your OFELIA username and password Note Once the FlowSpace is selected and the VMs created set the controller IP address to match to your VM that will host the OpenFlow controller Figure 12 shows the page for setting the controller IP address It can be reached from the OFELIA slice management page Figure 8 Flows are identifiable by a combination of packet header information FlowSpace is the subset of such combinations that defines a Flow or a set of Flows Page 14 of 20 OFELIA Tutorial
19. nessecdceaveteaousasad ocdavvanenwasseieeeds 9 3 1 Managing Projects serrin a n A E A Sieccset ecetel neccded eee tees Heed eee 10 3 2 Slices for Experiments sisareen e Eaa AERA E AEEA EAEE EEEE 12 3 3 OpenFlow Resource AllOCation s sirosti aana aE e a e aaee 14 3 4 Virtual Machine Allocation 0 eecceesseeeeseeceeeeeeaeeeeaeeceeeecaaeeeeaaecesaeeseaeeeeaaeeneaeeseeeesaeentaaeeeeeees 14 A gt RUNNING anm experimentais aeiiaaie aai vei codes a a ded ede steaes 18 4 1 Start EXPErIM ENT sesvecedscccbaseseseccaceszeteseacthicedecdihase aches gesecehaswecsoiceds shcbase sete aeie e p ieie ERE 18 4 2 RUN EXPENIMEN seremoniene e a eaea aa a a aeaeaei ea hecaaands Getacoaeeste 19 4 3 Clean Up After Experiment eriiic siei eane ee aaa ie eaa eiae aaea aaaeei ien 19 By CONCIUSION sa e E A E eased a e E E E E A an eases 20 6 SACKNOWIERD BEMENTS s sc ccseceencs cczeevennenenssdelasenuecbaeeedssedussticcscenedsensesuiabesenss deBeevenccaeeend AEREE EEA EE FREER NEEESE 20 OFELIA Tutorial Table 1 The OFELIA islands brief description and links to detailed information c cccccccesssssssseeeeeeees 4 Figure 1 Map of OFELIA island locations in Europe ccccccccccessssessssecececesseseeseeeeecescesaaeseeeeecssseseaeaeeeeeens 3 Figure 2 OFELIA Page for Registration Of New USCIS ccccccccccssssssssseceeecessesesseaeeeeecesseseaaeseeeeecessesseaeaeeeeeens 7 Figure 3 OFELIA Page for Login to OFELIA ccccccesssssssssecececesses
20. re 13 for an example Log in to your active VM by using your OFELIA user name and password OpenFlow Switch 00 00 00 00 00 00 00 01 Port 12 OpenFlow Switch 00 00 00 00 00 00 00 01 Port 11 OpenFlow Switch 00 00 00 00 00 00 00 01 Port 24 OpenFlow Switch 00 00 00 00 00 00 00 03 Port 24 OpenFlow Switch 00 00 00 00 00 00 00 03 Port 12 OpenFlow Switch 00 00 00 00 00 00 00 03 Port 13 OpenFlow Switch 00 00 00 00 00 00 00 03 Port 23 OpenFlow Switch 00 00 00 00 00 00 00 03 Port 11 OpenFlow Switch 00 00 00 00 00 00 00 02 Port 8 OpenFlow Switch 00 00 00 00 00 00 00 02 Port 23 OpenFlow Switch 00 00 00 00 00 00 00 02 Port 24 OpenFlow Switch 00 00 00 00 00 00 00 02 Port 9 OpenFlow Switch 00 00 00 00 00 00 00 04 Port 13 OpenFlow Switch 00 00 00 00 00 00 00 04 Port 23 OpenFlow Switch 00 00 00 00 00 00 00 02 Port 7 OpenFlow Switch 00 00 00 00 00 00 00 04 Port 12 OpenFlow Switch 00 00 00 00 00 00 00 04 Port 9 OpenFlow Switch 00 00 00 00 00 00 00 04 Port 10 OpenFlow Switch 00 00 00 00 00 00 00 04 Port 11 OpenFlow Switch 00 00 00 00 00 00 00 04 Port 8 OpenFlow Switch 00 00 00 00 00 00 00 04 Port 7 IP Source 192 168 20 50 192 168 20 60 IP Destination 192 168 20 50 192 168 20 60 Figure 13 Example FlowSpace Page 18 of 20 OFELIA Tutorial 4 2 Run Experiment Within your slice you can use the VMs as end hosts and the FlowSpace allocated on the OpenFlow switch fabric as the network data plane You c
21. sion s FP7 ICT Work Programme set up and maintains the OFELIA OpenFlow testbed facility The material in this document is based upon work done in OFELIA Editors using OFELIA sources amp information Sibylle Schaller NEC Mayur P Channegowda University of Essex Vasileios Kotronis ETH Zurich Stefano Salsano CNIT Page 20 of 20
22. te net fp7 ofelia eu 1 3 Running Experiments in OFELIA High Level View In order to run experiment in OFELIA you first need to setup your own OFELIA account OpenVPN is used to connect into the OFELIA federated test beds For security reasons the OFELIA islands are not directly connected with the Internet Using a web browser you can create and manage your experiments through the OFELIA Expedient GUI a graphical web based interface to the OFELIA Control Framework In particular you can e Create and configure your own slice of network resources Such a slice is a subset of the physical links and OpenFlow switches which make up an island e Create and manage a set of Linux Virtual Machines VMs that will be hosted in the island servers VMs can serve as traffic sources and sinks and can be used to run the experiment s application s One of your VMs usually hosts the OpenFlow controller Some default OpenFlow controllers are provided by OFELIA and can be easily configured and run but you are free to install and use any controller on your VMs For the access to your VMs SSH will be used For the monitoring of experiments and for the collection of measurements and statistics OFELIA is working to provide monitoring tools that will be integrated into the OFELIA Framework Page 5 of 20 OFELIA Tutorial 2 Getting Access to OFELIA The OFELIA facility is open as a best effort service free of charge for ex
23. ternal users that agree with the OFELIA Usage Policy The links to the OFELIA login and the user manual as well as general information about how to experiment can be found on the OFELIA website at page http www fp7 ofelia eu ofelia facility and islands how to experiment 2 1 Register Before connecting to an OFELIA island for the first time you have to register and acquire an OFELIA user account To register open the URL https fuzzy eict fp7 ofelia eu registration register Figure 2 for the screenshot You need to e Provide your name e mail address password and the organization you belong to e Select your home island Selecting a home island does not restrict your experiments to that island but helps to run specific experiments supported by that particular island e g Optical wireless Since the facilities are federated users can reserve any resource available from any of the OFELIA test beds e Accept the OFELIA usage policy A link to the usage policy document is provided on the registration page e And enter your public key OFELIA uses SSH DSA keys for authentication A key pair can be generated with the command ssh keygen t dsa in a Linux shell Please note that the exact command may be slightly different depending on the operating system and SSH software you run on Then open the generated public key and paste it into the field Upon submission of the registration information you will receive an automatically g
24. user before deleting the resources Slices in a project can only use those resources that are listed under Aggregates To create a slice click on the Create Button on the Project Management page Figure 6 and enter the slice name and its description After clicking the Save Button the Slice Management page is shown On the Slice Management page Figure 7 the Topology panel shows the physical topology of the resources in the aggregates added to your slice These resources may comprise the available OpenFlow switches virtualization servers and the connections between switches and servers In case of a federated experiment multiple island aggregates the panel would also describe the inter island links To use OpenFlow resources you are required to add OpenFlow resources to your slice see Section 3 3 and to specify an OpenFlow Controller for your experiment For the location of the controller you can either use an OFELIA virtual machine or any machine outside the OFELIA provided testbed that is connected to the OFELIA VPN To set the controller click on the button Set controller in the OpenFlow Aggregate area on the Slice Management page Figure 8 and then enter the OpenFlow controller URL and a password into the provided form The format of the controller URL should be tcp hostname port or ssl hostname port Page 12 of 20 OFELIA Tutorial Home gt Project VeryFirstTestProject gt Slice Slice 1 Slice S
25. work itself precisely and dynamically 1 2 What does OFELIA Offer Eight interconnected islands Figure 1 based on OpenFlow infrastructure are available to allow experimentation on multi layer and multi technology networks A brief description of each island is provided in Table 1 As a federated facility all OFELIA islands are connected together Intra Federation providing diverse and scalable resources A single login will grant access to all islands Work is ongoing to allow experiments to span across different islands In the future the OFELIA testbed will also support Inter Federation procedures that enable resource export and import across with other large scale test bed facilities In particular OFELIA is working to inter federate with GENI PlanetLab OMF Figure 1 Map of OFELIA island locations in Europe OMF Orbit Management Framework a control and management framework for networking testbeds Page 3 of 20 OFELIA Tutorial All OFELIA Islands will support running layer2 3 experiments on real OpenFlow enabled hardware switches Many diverse experiments can be done on the various islands like e g run wireless experiments on TUB Island information centric networking experiments on CNIT Island becoming available soon optical experiments on UEssex Island or experiments on virtual topologies VeRTIGO on Create Net Island Various kinds of experiments can be run on the OFELIA islands see Table 1 for brief d
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