Software defined networking(sdn) vahid sadri
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Transcript of Software defined networking(sdn) vahid sadri
• Outline
1- Overview SDN2- What is OpenFlow?3- Start Project 1
• Requirements Project • Useful Linux commands• MiniNet• SSH Protocol• X11 (X-Windows)• Create Network in Mininet• Topologies• Controller (Test Remote Controller)
SDNSoftware-defiened networking
MotivationProblem Statement
• Complex carrier networks • with a large variety of proprietary nodes and hardware appliances.
• Launching new services is difficult and takes too long• Space and power to accommodate• requires just another variety of box, which needs to be integrated.
• Operation is expensive• Rapidly reach end of life• due to existing procure-design,-
integrate-deploy cycle.
Network functionalities are based on specific HW&SW
One physical node per role
Traditional Network model
Sisyphus on Different Hills
Telco Operators
Equipment Vendors
SDOs
Operator 1
2-6 Years
Demand
Drive
StandardiseImplement
Sell
Deploy
Operator 2Operator n
Critical mass ofsupporters
Develop Deploy Publish
2-6 Months
Telco Cycle Service Providers Cycle
2-6 years 2-6 months
Service Providers
AVAILABLE AVAILABLEIdea !! Idea !!
Source: Adapted from D. Lopez Telefonica I+D, NFV
• Very intensive in hardware
• Software not at the core
• Very intensive in software
• Hardware is a necessary base
x
HARDWARE SOFTWARE+
-
+
-
Traditional telcos Internet players
Adapt to survive: Telco evolution focus shifting from hardware to softwareSource: Adapted from D. Lopez Telefonica I+D, NFV
Enter the Software-Defined Era
Google, FacebookAT&T, Telefonica, Telebras
Trends• High performance industry
standard servers shipped in very high volume
• Convergence of computing, storage and networks
• New virtualization technologies that abstract underlying hardware yielding elasticity, scalability and automation
• Software-defined networking• Cloud services• Mobility, explosion of devices and
traffic
Challenges• Huge capital investment to deal with
current trends• Network operators face an increasing
disparity between costs and revenues• Complexity: large and increasing
variety of proprietary hardware appliances in operator’s network
• Reduced hardware lifecycles• Lack of flexibility and agility: cannot
move network resources where & when needed
• Launching new services is difficult and takes too long. Often requires yet another proprietary box which needs to be integrated
Source: Adapted from D. Lopez Telefonica I+D, NFV
A means to make the network more flexible and simple by minimising dependence on HW constraints
v
Network Functions are SW-based over well-known HW Multiple roles over same HW
ORCHESTRATION, AUTOMATION & REMOTE INSTALL
DPIBRAS
GGSN/SGSN
Firewall
CG-NAT
PE Router
VIRTUAL APPLIANCES
STANDARD HIGH VOLUME SERVERS
Virtualised Network Model: VIRTUAL APPLIANCE APPROACHv
Network Functions are based on specific HW&SW One physical node per role
DPIBRAS GGSN/SGSN
Session Border ControllerFirewall CG-NAT
PE Router
Traditional Network Model: APPLIANCE APPROACH
The NFV Concept
Source: Adapted from D. Lopez Telefonica I+D, NFV
BRAS
FirewallDPI
CDN
Tester/QoEmonitor
WANAcceleration
MessageRouter
Radio AccessNetwork Nodes
CarrierGrade NAT
Session BorderController
Network Virtualisation Approach
PE RouterSGSN/GGSN
Independent Software Vendors
Standard High VolumeEthernet Switches
Standard High Volume Storage
Standard High Volume Servers
Orchestrated,automatic &remote install.
• Fragmented non-commodity hardware.• Physical install per appliance per site.• Hardware development large barrier to entry for new
vendors, constraining innovation & competition.
Classical Network Appliance Approach
Target
Source: NFV
Network Functions Virtualization• Network Functions Virtualization is about implementing network functions in
software - that today run on proprietary hardware - leveraging (high volume) standard servers and IT virtualization
• Supports multi-versioning and multi-tenancy of network functions, which allows use of a single physical platform for different applications, users and tenants
• Enables new ways to implement resilience, service assurance, test and diagnostics and security surveillance
• Provides opportunities for pure software players• Facilitates innovation towards new network functions and services that are only
practical in a pure software network environment• Applicable to any data plane packet processing and control plane functions, in
fixed or mobile networks• NFV will only scale if management and configuration of functions can be
automated• NFV aims to ultimately transform the way network operators architect and
operate their networks, but change can be incrementalSource: Adapted from D. Lopez Telefonica I+D, NFV
Benefits & Promises of NFV• Reduced equipment costs (CAPEX)
• through consolidating equipment and economies of scale of IT industry.
• Increased speed of time to market • by minimising the typical network operator cycle of innovation.
• Availability of network appliance multi-version and multi-tenancy,• allows a single platform for different applications, users and tenants.
• Enables a variety of eco-systems and encourages openness. • Encouraging innovation to bring new services and generate new
revenue streams.
Source: NFV
Benefits & Promises of NFV• Flexibility to easily, rapidly, dynamically provision and
instantiate new services in various locations • Improved operational efficiency
• by taking advantage of the higher uniformity of the physical network platform and its homogeneity to other support platforms.
• Software-oriented innovation to rapidly prototype and test new services and generate new revenue streams
• More service differentiation & customization • Reduced (OPEX) operational costs: reduced power, reduced
space, improved network monitoring• IT-oriented skillset and talent
Source: Adapted from D. Lopez Telefonica I+D, NFV
So, why we need/want NFV(/SDN)?1. Virtualization: Use network resource without worrying about where it is physically located, how much it is, how it is organized, etc.2. Orchestration: Manage thousands of devices3. Programmable: Should be able to change behavior on the fly.4. Dynamic Scaling: Should be able to change size, quantity5. Automation6. Visibility: Monitor resources, connectivity7. Performance: Optimize network device utilization8. Multi-tenancy9. Service Integration10. Openness: Full choice of modular plug-ins
Note: These are exactly the same reasons why we need/want SDN.Source: Adapted from Raj Jain
NFV and SDN • NFV and SDN are highly complementary• Both topics are mutually beneficial but not dependent on each
other
NetworkFunctions
Virtualization
SoftwareDefined
NetworkingOpen
Innovation
Creates competitive supply of innovative applications by third parties
Creates network abstractions to enable faster innovation
Reduces CAPEX, OPEX, Space & Power Consumption
Source: NFV
NFV vs SDN• NFV: re-definition of network equipment architecture• NFV was born to meet Service Provider (SP) needs:
• Lower CAPEX by reducing/eliminating proprietary hardware• Consolidate multiple network functions onto industry standard
platforms• SDN: re-definition of network architecture• SDN comes from the IT world:
• Separate the data and control layers, while centralizing the control
• Deliver the ability to program network behavior using well-defined interfaces
Network equipment as Black boxes
Open interfaces (OpenFlow) for instructing the boxes what to do
SDN
Boxes with autonomousbehaviour Decisions are taken out of the box
FEATURE FEATURE
OPERATING SYSTEM
SPECIALIZED PACKET FORWARDING HARDWAREFEATURE FEATURE
OPERATING SYSTEM
SPECIALIZED PACKET FORWARDING HARDWARE
FEATURE FEATURE
OPERATING SYSTEM
SPECIALIZED PACKET FORWARDING HARDWAREFEATURE FEATURE
OPERATING SYSTEM
SPECIALIZED PACKET FORWARDING HARDWARE
SDN
Adapting OSS to manage black boxes Simpler OSS to manage the SDN controller
SDNFEATURE FEATURE
OPERATING SYSTEM
SPECIALIZED PACKET FORWARDING HARDWAREFEATURE FEATURE
OPERATING SYSTEM
SPECIALIZED PACKET FORWARDING HARDWARE
FEATURE FEATURE
OPERATING SYSTEM
SPECIALIZED PACKET FORWARDING HARDWAREFEATURE FEATURE
OPERATING SYSTEM
SPECIALIZED PACKET FORWARDING HARDWARE
Software Defined Networking
Source: Adapted from D. Lopez Telefonica I+D, NFV
Scope of NFV and OpenFlow/SDN
Source: NEC
Networking with SDN & NFV
Source: NEC
(Network Virtualization)2 = SDN + NFV
0 SDN: Software Defined Networking
NFV: Network Functions Virtualisation
Source: Adapted from D. Lopez Telefonica I+D, NFV
Some Use Case Examples…not in any particular order
• Switching elements: BNG, CG-NAT, routers. • Mobile network nodes: HLR/HSS, MME, SGSN, GGSN/PDN-GW.• Home networks: Functions contained in home routers and set top boxes to create virtualised
home environments.• Tunnelling gateway elements: IPSec/SSL VPN gateways.• Traffic analysis: DPI, QoE measurement.• Service Assurance: SLA monitoring, Test and Diagnostics.• NGN signalling: SBCs, IMS.• Converged and network-wide functions: AAA servers, policy control and charging platforms.• Application-level optimisation: CDNs, Cache Servers, Load Balancers, Application Accelerators.• Security functions: Firewalls, virus scanners, intrusion detection systems, spam protection.
Source: NFV
The ETSI NFV ISG• Global operators-led Industry
Specification Group (ISG) under the auspices of ETSI– ~150 member organisations
• Open membership– ETSI members sign the “Member
Agreement”– Non-ETSI members sign the
“Participant Agreement”– Opening up to academia
• Operates by consensus– Formal voting only when required
• Deliverables: White papers addressing challenges and operator requirements, as input to SDOs– Not a standardisation body by itself
• Currently, four WGs and two EGs– Infrastructure– Software Architecture– Management & Orchestration– Reliability & Availability– Performance & Portability– Security
Source: Adapted from D. Lopez Telefonica I+D, NFV
High-level Architecture
NFV Layers
NFV Infrastructure
End Point
End Point
E2E Network Service
Compute Storage NetworkHW Resources
Virtualization LayerVirtualization SW
Virtual Compute
Virtual Storage
Virtual Network
Virtual Resources
Logical AbstractionsNetwork Service
VNF VNF VNF
VNF VNF
Logical Links
VNF Instances
VNF VNF VNFSW Instances
VNF : Virtualized Network Function
VNF
Source: Adapted from D. Lopez Telefonica I+D, NFV
Rethinking relayering
یک تعریف خیلی ساده
افزاری نرم صورت به شبکه مدیریت
oچرا؟o داره؟ مشکلی چه ما فعلی های شبکه مگرo میشه؟ چی نباشه اگرo میشه؟ چی باشه اگرo میخوره؟ ما درد چه به اصال
26
Limitations of Current Networks
Switches
27
Limitations of Current Networks
• Enterprise networks are difficult to manage
• “New control requirements have arisen”:• Greater scale• Migration of VMS
• Implement new ideas• How to easily configure huge networks?
28
• Old ways to configure a network
Limitations of Current Networks
Specialized Packet Forwarding Hardware
App App App
Specialized Packet Forwarding Hardware
App App App
Specialized Packet Forwarding Hardware
App App App
Specialized Packet Forwarding Hardware
App App App
Specialized Packet Forwarding Hardware
OperatingSystem
OperatingSystem
OperatingSystem
OperatingSystem
OperatingSystem
App App App
29
Limitations of Current Networks
Million of linesof source code
Billions of gates
Many complex functions into infrastructure
OSPF, BGP, multicast, differentiated services,Traffic Engineering, NAT, firewalls, …
Specialized Packet Forwarding Hardware
OperatingSystem
Feature Feature
Cannot dynamically change according to network conditions
30
• No control plane abstraction for the whole network!
• It’s like old times – when there was no OS…
Limitations of Current Networks
Wilkes with the EDSAC, 1949
Cisco, IBM, Alcatel, Juniper Networks, Broadcom, Citrix, Dell, Google, HP,
Intel, NEC,vmWare and Verizon
Cisco ONE
NSX
32
Idea: An OS for Networks
Specialized Packet Forwarding Hardware
App App App
Specialized Packet Forwarding Hardware
App App App
Specialized Packet Forwarding Hardware
App App App
Specialized Packet Forwarding Hardware
App App App
Specialized Packet Forwarding Hardware
OperatingSystem
OperatingSystem
OperatingSystem
OperatingSystem
OperatingSystem
App App App
Closed
33
Idea: An OS for Networks
Specialized Packet Forwarding Hardware
App App App
Specialized Packet Forwarding Hardware
App App App
Specialized Packet Forwarding Hardware
App App App
Specialized Packet Forwarding Hardware
App App App
Specialized Packet Forwarding Hardware
OperatingSystem
OperatingSystem
OperatingSystem
OperatingSystem
OperatingSystem
App App App
Network Operating System
Control Programs (Route,Forwarding,VPN,LB,..)
34
Idea: An OS for Networks
Simple Packet Forwarding Hardware
Simple Packet Forwarding Hardware
Simple Packet Forwarding Hardware
Simple Packet Forwarding Hardware Simple Packet
Forwarding Hardware
Network Operating System
Control Programs (Route,Forwarding,VPN,LB,..)
OpenFlow Protocol (SSL/TCP)Port 6633
What is OpenFlow?
How it helps SDN
از پروتکل SDNقبل با باید
OpenFlowشویم آشنا
OpenFlow
Defines the part of the router architecture that decides what to do with packets arriving on an inbound interface.
that gives access to the forwarding plane of a network switch or router over the network.OpenFlow is a communications protocol
Forwarding PlaneIn routing, the Forwarding Plane, sometimes called the Data Plane
OpenFlowپروتکل به عنوان اصلي ترين جزء شبکه هاي
(Software Defined Networking )SDN
پروتکل از استفاده با خصوصی OpenFlowما دیگر تجهیزات یا سوئیچ زنیم حرفبا می
پروتکل باید تجهیزات که باشید داشته کند OpenFlowتوجه پشتیبانی رارا ما حرف وگرنه
نمی فهمدددددد
40
• OpenFlow
Structure of the current devices
41
• OpenFlow
Data Path (Hardware)
OpenFlow
OpenFlow Controller
OpenFlow Protocol (SSL/TCP)
POX,Ryu,Pyretic,…
Control Path(os)
42
• OpenFlow Switching Controller
Server Controller(Linux ubuntu)
HardwareLayer
SoftwareLayer
OpenFlow Table
MACsrc
MACdst
IPSrc
IPDst
TCPsport
TCPdport Action
OpenFlow Client
**5.6.7.81.2.3.4** port 1
port 4port 3port 2port 1
1.2.3.45.6.7.8 42
5.6.7.8 port 11.2.3.4
43
• OpenFlow Table Entry
SwitchPort
MACsrc
MACdst
Ethtype
VLANID
IPSrc
IPDst
IPProt
TCPsport
TCPdport
Rule Action Stats
+ mask
Packet + byte counters
1.Forward packet to port(s)2.Encapsulate and forward to controller3.Drop packet4.Send to normal processing pipeline5.…
OpenFlow 01.1234Versions
More information (Historical information about version of the OpenFlow )
Mininet
MiniNetThe main difference between simulation and emulation is that simulation is done all in software and emulation is done in hardware and software.
Emulation allows developers to see the real-time interactions between different hardware and software models.
Mininet is a Software Emulator for prototyping a large network on a single machine
Enter to mininet.org
: داریم نیاز پروژه این برای که هایی برنامه اکثر
Linux Windows
1- A Linux Distribution (in my project Ubuntu)
2- Mininet
3- Controller (pox,nox,Ryu,Pyretic,…)
4- Wireshark (more information)
5- X11 Client (Xinit,xview-clients)
1- Virtualization Product (VirtualBox,vmWare)
2- SSH Client (Putty.exe)
3- X11 Server (Xming Server for windows)
sdn-sadri.ovaDownload
لینوکس با کار شروع برای کاربردی :دستوراتCommand Description
1 Pwd جاری دایرکتوری مسیر نمایش2 Ls جاری مسیر فایلهای و ها پوشه لیست نمایش3 Ifconfig شبکه کارت تنظیمات نمایش4 Ping
5 Apt-get نیاز مورد های برنامه نصب،حذف،بروزرسانی6 Poweroff,shutdown,init 0
7 Reboot,init 6
8 Su Switch User | by default su mean switch user to Root (superuser)
9 Passwd Change password current user
10 sudo Switch User and Doing | by default sudo in Root
11 Vi,nano Text Editor
12 Man Manual (Help) | Help Command, Ex: man pwd
13 Service Services manager | Ex: service
14 dhclient DHCP Client | -r option for Release interface
sudo /etc/init.d/networking {stop|start|restart}
Ifconfig <eth0> down | up خاص اینترفیس یک کردن فعال و غیرفعال
Sudo ifdown –a شبکه کارتهای همه کردن فعال غیرSudo ifup –a شبکه کارتهای همه کردن فعال
Sudo ifdown <eth0> خاص اینترفیس یک کردن غیرفعالSudo ifup <eth0> خاص اینترفیس یک کردن فعال
• Interfaces Command
SSHSecure SHellSecure Shell (SSH) is a cryptographic network protocol for secure data communication
پایه بر امن ارتباطی پروتکل گذاری TPC/IPیک رمز با که است گیرنده سرویس و دهنده سرویس بینمیکند جلوگیری مسیر طول در اطالعات افشای از سرور و کالینت بین ها داده
Port 22
MininetMy Client
Linux Ubuntu Windows
SSH Server SSH Client
SSH ProtocolPort 22
Putty.exe More information
X11 provides the basic framework for a GUI environment
X11 محیط یک برای امکانات ترین ای با ) GUIپایه ارتباط ها، پنجره نمایش و رسم مانند کند می فراهم راو ...( کیبرد و ماوس
X11 X-Windows
مثال:ساعت • نمایشفایرفاکس • کردن بازکردن • باز ما پروژه در Wiresharkیا
xclock
اندازی راه کنیم؟؟؟ X11 برای چیکار باید
MininetMy Client
X11 Client X11 Server
Linux-mininet# xclock
X11 Forwarding
X11 Forwarding GUI
X11 Client X11 Server
Xinit ming#Sudo apt-get install xinit#Sudo apt-get install xview-clients#Sudo apt-get install x11-apps
http://sourceforge.net/projects/xming/
Download & Install
X Window System Server for Windows #Sudo apt-get update
#Sudo startx
( منابع بروزرسانی لینوکس( Repositoryبرای
xinitاجرای
اجرا X11نحوه
برنامه- 1 ویندوز Xming serverابتدا روی را
کنیم می اجرا
با- 2 ارتباط برای بعد به این از MiniNetاز
aطریقSSH بایدطی را شده مشخص عکس در که مراحلی
کنید
گزینه- 3 .Enable X11 forwardingو بزنید تیک راقسمت Mininetسرور IPسپس- 4 در را
Session به و میکنیم قابلیت MiniNetوارد باX11. شویم می متصل
192.168.56.102
در شبکه یک Mininetساخت
mnCommand
Enter to MiniNet
ساخت یک شبکه مجازی استMiniNetهدف
Hosts (Pc)SwitchesControllers (Ryu,Pyretic)
*** Creating network*** Adding controller*** Adding hosts:h1 h2*** Adding switches:s1*** Adding links:(h1, s1) (h2, s1)*** Configuring hostsh1 h2*** Starting controller*** Starting 1 switchess1*** Starting CLI:mininet>
Documented commands (type help <topic>):========================================
Command Descriptions
1 EOF از mininetخروج2 Exit از mininetخروج3 Quit از mininetخروج4 Time در را دستور یک اجرای زمان mininetمدت
دهد می5 Sh دستور یک داخل Shellاجرای که زمانی
mininet هستیم6 intfs شبکه اینترفیسهای همه لیست7 Gterm,xterm Xterm برپایه استاندارد ترمینال -Xیک
windowsGterm = GNOME Terminal
8 Pingall Ping ها هاست همه بین9 Pingallfull Ping جزئیات با ولی ها هاست همه بین
بیشتر10 Dpctl کنترل برای سوئیچ Flow Tableابزاری یک
استفاده یابی عیب برای ابزار این از معموال. شود می
11 Link در لینک یک کردن غیرفعال و فعال برایتوپولوژی
12 help راهنما13 nodes دهد می نشان را ما شبکه نودهای تمام14 iperf دو بین باند پهنای محاسبه برای ابزای
هاست15 iprefudp دو بین باند پهنای کارایی تست برای ابزاری
مثال خاص باند پهنای یک تعریف با هاستمگابایت 20
16 dump میدهد ها نود مورد در اطالعاتی17 net دهد می را شبکه اتصاالت لیست18 Source فایل یک از دستورات یکسری خواندی19 Pingpair برای بیشتر هاست، دو اولین بین پینگ
. میشود استفاده سریع های تست20 Pingpaifull بیشتر جزئیات با ولی باال دستور مانند21 py پایتون عبارت یک اجرای22 Noecho خروجی نمایش بدون دستور یک اجرای
MiniNet Topologies
sudo mn
*** Creating network*** Adding controller*** Adding hosts:h1 h2*** Adding switches:s1*** Adding links:(h1, s1) (h2, s1)*** Configuring hostsh1 h2*** Starting controller*** Starting 1 switchess1
• Default Topology
sudo mn --topo single,3
mininet> neth1 h1-eth0:s1-eth1h2 h2-eth0:s1-eth2h3 h3-eth0:s1-eth3s1 lo: s1-eth1:h1-eth0 s1-eth2:h2-eth0 s1-eth3:h3-eth0
• Single
sudo mn --topo reserved,3
mininet> neth1 h1-eth0:s1-eth3h2 h2-eth0:s1-eth2h3 h3-eth0:s1-eth1s1 lo: s1-eth1:h3-eth0 s1-eth2:h2-eth0 s1-eth3:h1-eth0
• Reserved
Single:h1 h1-eth0:s1-eth1h2 h2-eth0:s1-eth2h3 h3-eth0:s1-eth3
sudo mn --topo linear,3
mininet> neth1 h1-eth0:s1-eth1h2 h2-eth0:s2-eth1h3 h3-eth0:s3-eth1s1 lo: s1-eth1:h1-eth0 s1-eth2:s2-eth2s2 lo: s2-eth1:h2-eth0 s2-eth2:s1-eth2 s2-eth3:s3-eth2s3 lo: s3-eth1:h3-eth0 s3-eth2:s2-eth3
• Linear A serial connection with N switches and N hosts
sudo mn --topo tree,3
mininet> neth1 h1-eth0:s3-eth1h2 h2-eth0:s3-eth2...
• Tree A multiple level topology with N levels and TWO hosts per switch
• Custom Topologies Using a simple Python API
Cd /home/mininet/mininet/custom/mininet@mininet:~$
README topo-2sw-2host.py
mininet@mininet:~$ ls
Python API
mininet@mininet:~$ Vi topo-2sw-2host.py
# Add links self.addLink( leftHost, leftSwitch ) self.addLink( leftSwitch, rightSwitch ) self.addLink( rightSwitch, rightHost )
# Add hosts and switches leftHost = self.addHost( 'h1' ) rightHost = self.addHost( 'h2' ) leftSwitch = self.addSwitch( 's3' ) rightSwitch = self.addSwitch( 's4' )
topos = { 'mytopo': ( lambda: MyTopo() )
• To start up a mininet with the provided custom topology, do:
sudo mn --custom custom_example.py --topo mytopo
sudo mn --custom /home/mininet/mininet/custom/topo-2sw-2host.py --topo mytopo
• Controller
Name Versions Language Description
NOX 1.0 C++ The original OpenFlow controller. Developed by Nicira and donated to research in 2008.
POX 1.0 Python POX is NOX's Python-only younger sibling and is designed for rapid prototyping.
Open Daylight 1.0, 1.3 Java Industry supported (Cisco, Brocade, etc) Linux Foundation project. OpenDaylight has
attracted considerable attention over the past year.
Beacon 1.0 Java Written by David Erickson at Stanford in 2010, Beacon is one of the most widely cited OpenFlow controllers and served as the basis of Floodlight.
Flowvisor 1.0 C Special purpose controller that acts as transparent proxy for multiple controllers and enables rich network slicing.
Floodlight 1.0 Java Open source core of the commercial controller product made by Big Switch Networks, forked from Beacon but without OSGI.
Trema 1.0 C and Ruby Formerly known as Helios, this controller came from research efforts at NEC.
Ryu 1.0, 1.2, and 1.3 Python Started by NTT Labs, Ryu is one of the more complete and easy to integrate OpenFlow
controllers with open source today.
Pyretic 1.0, 1.2, and
1.3 Python Pyretic is one member of the Frenetic family of SDN programming languages.
Scott Shenker
Default Controller In the Mininet is
“OVSC”Openflow Virtual Switch Controller
• Choose Controller in Mininethttp://sdnhub.org/tutorials/ryu/
$ sudo mn --topo single,3 --controller remote --switch ovsk
Ovsk ( Open vSwitch in Kernel ) = support for both OpenFlow ver 1.0 and 1.3
--controller remote Run Local Controller 127.0.0.1
--controller=remote=192.168.1.200,port=6633
Controller = Default Controller “OVSC”
$ sudo ovs-vsctl set bridge s1 protocols=OpenFlow13 Force a switch to support OpenFlow 1.3
• How to run RYU & link to Mininet
sudo mn --topo single,3 --mac --controller remote --switch ovskmininet@mininet:~$
در شبکه یک کنترللر mininetساخت یک از استفاده Remoteو*** Creating network*** Adding controllerUnable to contact the remote controller at 127.0.0.1:6633*** Adding hosts:h1 h2 h3*** Adding switches:s1*** Adding links:(h1, s1) (h2, s1) (h3, s1)*** Configuring hostsh1 h2 h3*** Starting controller*** Starting 1 switchess1*** Starting CLI:mininet>
نکردیم اجرا ما را کنترللری هیچ اینکه .Mininetبدلیل دهد تشخیص را کنترللری است نتوانستهکنترللر به نیست قادر گوید می به Remoteو .Mininetرا کند اضافه
بیاریم در اجرا به را کنترلر یک ما باید پسبرنامه • از استفاده با اینکار دیگر Puttyبرای ارتباط .SSHیک میزنیم لینوکس به•. کنیم می اجرا را نظر مورد کنترلرر سپس
• Run RYU Controller
mininet@mininet:~$ryu-manager --verbose ryu/app/simple_switch.py mininet@mininet:~$ Cd ryu
OpenFlow 1.0
• Upgrade Ubuntu Open vSwitch 1.4 to 2.3 using packages in Mininet VM
1 Remove old Open vSwtich (1.4):
sudo apt-get remove openvswitch-common openvswitch-datapath-dkms openvswitch-controller openvswitch-pki openvswitch-switch
Download the new Open vSwtich source tarball:2mkdir openvswitchcd openvswitchwget http://openvswitch.org/releases/openvswitch-2.3.0.tar.gztar zxvf openvswitch-2.3.0.tar.gzcd openvswitch-2.3.0
ovs-vswitchd –versionovs-vswitchd (Open vSwitch) 1.4.0+build0
• Upgrade Ubuntu Open vSwitch 1.4 to 2.3 using packages in Mininet VM
3
4
Install all the dependencies that will be needed:sudo apt-get updatesudo apt-get -y install build-essential fakeroot debhelper autoconf automake libssl-dev pkg-config bzip2 openssl python-all procps python-qt4 python-zopeinterface python-twisted-conch
Build the Debian packages:
DEB_BUILD_OPTIONS='parallel=2 nocheck' fakeroot debian/rules binary
Install the packages:5cd ..sudo dpkg -i openvswitch-common*.deb openvswitch-datapath-dkms*.deb openvswitch-controller*.deb openvswitch-pki*.deb openvswitch-switch*.deb
• Upgrade Ubuntu Open vSwitch 1.4 to 2.3 using packages in Mininet VM
6 Open vSwitch Controller from starting automatically on boot:
sudo /etc/init.d/openvswitch-controller stopsudo update-rc.d openvswitch-controller disablesudo /etc/init.d/openvswitch-switch start
ovs-vswitchd –version
ovs-vswitchd (Open vSwitch) 2.3.0
Bookmarks
Repository
A software repository is a storage location from which software packages may be retrieved and installed on a computer.
نرم افزاری یک بر مخزن سپس و کرده دریافت مخزن آن از را نرم افزارها می توانند کاربران که جاییست ،کنند نصب خود کامپیوتر ها روی افزار نرم آپدیت آخرین به تا کنیم می آپدیت را مخزن این معموال ما. باشیم داشته دسترسی
More information (Click Here)
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Putty.exe
PuTTY is a free implementation of Telnet and SSH for Windows and Unix platforms, along with an xterm terminal emulator. It is written and maintained primarily by Simon Tatham.
رایگان( Puttyپوتی ) افزار نرم مجموعه یک محیط SSH Client/Serverنام با windowsدر که باشد میهای پروتکل طریق از توانید می آن از .SSHو Raw ،Rloginاستفاده شوید متصل لینوکس سرور یک به
Download Link
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UbuntuUbuntu is an open source software platform that runs everywhere from the smartphone, the tablet and the PC to the server and the cloud.
توزیع( Ubuntu: انگلیسیبه ) اوبونتو توزیع لینوکسیک مبنای بر که با دبیاناست اما شده است؛ پایه گذاری . مفاهیم از یکی از اوبونتو نام دارد تفاوت جنوبی آن » آفریقای معنی دیگران به به نسبت «.انسانیت
Ubuntu Site
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Ubuntu 14.10 Desktop
Wireshark
Wireshark is a free and open-source packet analyzer. It is used for network troubleshooting, analysis, software and communications protocol development, and education.
Wireshark آنالیزگریک . یک است شبکه در پکت پکت شوند آنالیزگر می وبدل رد شبکه در که هایی پکت ، . دهد می نمایش را آن جزئیات امکان صورت در و دهد می قرار پردازش مورد را آنها و انداخته دام به را
قرار برسی مورد و انداخته دام به را گذرد می کابل طریق از که را آنچه دقیق طور به افزار نرم این واقع در. دهد می
Wireshark Site
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SDN_tutorial_VM_32bit
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•SDN Controllers: OpenDaylight, RYU, Floodlight, POX, and Pyretic
•Example code for a hub, L2 learning switch, and other applications
•Open vSwitch 2.1.0 with support for Openflow 1.2, 1.3 and 1.4
•Mininet to create and run example topologies
•Wireshark 1.11.3 with native support for OpenFlow parsing
•X11 Display
•Firefox
•JDK, Eclipse, and Maven
با تشکر از حضور سبزتانوحید صدری