Software-Defined Networking - Science topic
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Questions related to Software-Defined Networking
Frame check sequence (FCS) is an error-detecting code added to a frame in a communication protocol used in the data-link layer, and OVS is the switch used in the SDN network architecture data plane. What is the difference between the OVS and traditional switch for dealing with this field type?
I have decentralized SDN control and Mobile edge server, I want to manage everything in the network in manner decentralized
ideas for fog computing and it's security and SDN and what is suite program to make simulation on that ?
How can I calculate end-to-end delay and overhead in SDN? Is there any tool to do that in Linux?
I am using docker containers as OVS and ONOS controller.
any suggestion would be appreciated
When I ping one host with another host, it generates an error "destination host unreachable" (i have manually giving IP address range 10.0.0..1 to 10.0.0.12 ).
eth0 - 220.127.116.11 DHCP server - 192.168.56.100
eth1 - 10.0.2.15 l0 (loopback) - 127.0.0.1
When I ping 192.168.56.1 then it successfully pings.
But when I have used miniedit to draw a network and tried to connect them between two hosts on the same or different switches, it shows the following error "destination host unreachable problem.
Hello, I am looking for a topic for my Master's thesis in 5G, or SDN, or wireless network communications. It will be really great if I can get some suggestions.
i want to know how SDN can Improve network performance like delay, throughput, pdr
for the delay i understand that SDN controller have a global view of network and so i chose the best bath (less congestion)
what about the throughput ?
and Packet Delivery Ratio
I am trying to implement DDOS attack detection in SDN network using reinforcement Learning algorithm, for this task I want to define my state space of Reinforcement Learning environment in the form of flow entries of the flow table,but I am unable to represent it properly ? Can somebody provide a little guidance of doing it ?
Thanks and regards
What should I do if I want to simulate my design of packet transmission mechanism in the vehicle networking security on NS-3? P.S. I'm still new in the car networking and computer networks, so I hope you give me as much detail as possible, and I'll appreciate it!
We are working on the linear topology of multiple APs, but the connection between stations in different APs cannot be verified unless we add an SDN controller to the network! Is there any method to make this connection possible? because we want to compare the network in two cases: with and without a controller.
Hello everyone. I'll start working on my master thesis and my task will be to simulate a SDN architecture with some IoT devices in a 5G environment. I've read that Simu5g (http://simu5g.org/) should be a viable option; I would like to know if anyone here faced some similar challenges. I found this article (
I am searching a research problem related attack/anomaly detections in SDN using deep learning methods. can I get some idea?
Mininet is a simulator to create virtual networks and SDN has dual role in DDOS attack. it can prevent a DDOS attack or became a tool to carry out DDOS
I need your help, please.
Could someone have an idea on an open-source simulator for SDN (Mininet) and Blockchain (Ethereum)?
hey, I want to develop energy efficient SDN and to integrate with Edge computing based IoT applications. So, which emulator/simulator would you recommend for integration SDN, Edge computing and IoT devices. Please suggest best open source Emulator / Simulator.
the detection is related to the DDoS attacks. Need to find or guidance regarding some open source project that has done machine learning in java and used the SDN network.
Hello, I am an Undergraduate Final Year Student, I would be so glad if someone gives me a guideline for recent SDN thesis topic which would be suitable for Undergraduate Student.
I am trying to compute the communication cost of the SDN network. For that load of the switches will be multiplied with the link cost. But I am not finding the cost in USD to send packets from switch to controller.
I have read in the next
OpenFLow switch is able to keep track of the sequence number of each traffic flow to detect MAC spoofing attack. Upon reception of a frame, the algorithm calculates the gap G between the sequence number of the current frame and that of the last frame received from the same source address. If G = 0, the current frame is considered as a re-transmitted frame, while if G = 1 or G = 2, the current frame is considered the right one. But, if the gap between the current frame and previous frame is in between 3 and 4096, then it is considered an abnormal sequence number.
In my case, I use Ryu Controller and I would like to do the same work, where the switch sends the alert to the controller after the switch detects the gap.
I hope you are well and safe.
I am doing my master thesis on SDN, My supervisor wants me to do a Security solution or some QoS monitoring like Dynamic path selection...etc
I'd really appreciate some suggestions for a new idea or some security-related solutions, so I can narrow my targeting.
I sincerely thank you in advance for your help.
I am doing research on the topic "Implementing Fast Routing in SDN". I need help to get related research papers so I can continue my research work efficiently.
Software-Defined Networking (SDN) is a promising paradigm that serves as a pillar in the
the fifth generation of mobile systems (5G) that could help to detect and mitigate cyber-attacks.
I would like to connect 2 Ryu controllers (C1,C2) to one switch with two different table-miss. When a certain match takes place the switch sends to C1, and for different match, the switch sends to another controller.
When I run 2 controllers, the switch has only one entry as follow :
cookie=0x0, duration=30.805s, table=0, n_packets=538, n_bytes=37602, priority=0 actions=CONTROLLER:65535.
is there any way to add 2 defferent entries for two different controller , for instance:
cookie=0x0, duration=12s, table=0, n_packets=2, n_bytes=500, priority=10 actions=CONTROLLER:66556 +++++++++++ cookie=0x0, duration=18.371s, table=0, n_packets=87, n_bytes=7500, priority=0 actions
I'm trying to guess how to implement the python script of the machine learning model in the Ryu SDN controller python script should I just save the model and load it in the script ?
Also if there is any help to give me ideas how to implement a python script in the controller so it can detect Botnet I guess I have an idea like requesting flows from the switch every each 5 seconds for example and then predict if the attack is occurring or not so any help (code, documents, tutorials....etc) will be appreciated
Finaly, I want to ask if scapy is a good tool to generate normal traffic and botnet (master and slaves) traffic
Hope you help me
Does anyone who have good experience in online search algorithm in software defined network for controller placement distributed SDN?
i have a mathematical model of the controller placement problem and i want to write a program using C as a language of programming,
this program he can find the optimal number of controllers that must installed in a Software Defined Network (SDN) and i don't know how to model the of switcher and the set of controllers in this program.
I have ONOS controller version 1.8 installed on Ubuntu 14.4 LTS, I am trying to run Tennison Framework with controller.
When I tried to build onos – tennison – apps, the attached error is appeared.
Also I tried to fetch the repository link that exist in POM.xml. The link is forbidden.
The link is: https://oss.sonatype.org/content/repositories/snapshots.
How can I fix this error and build the needed apps.
I am doing a research in wireless networks trying to use SDN to provide network resiliency I have simulated the network in mininet-wifi I want to be able to use controller to control AP 802.11 parameters like TX power Tx range now I want to know which SDN controller fits for this scenario
I need SDN router placement algorithm with python code,
i need python code to generate SDN router graph and charts
but i did not want to use NS3 and Mininet .
I wants to use only window 10 operating system to do this task.
i have anaconda python installed
algortihm 1 basic link selection
input: txm matrix M, integer k
output: MP =(M1 M2) where M1 is txk
1: compute the SVD of M: M= Udelta V T;
2: Apply QR with column pivoting to first k
V(:, 1: k)T p =QR
algorithm 2 SDN Router Placement
Input: Eb: the set of basic links;
output: C: the set of SDN routers;
2: while Eb not equal theta do
for legacy router i with yi= = do
compute Ei Eb; Ei is the set of basic cover the legacy router
how to design this algorithm using python
Hii All, is there any simulation tool available to calculate power consumption of SDN switches and controllers. Using mininet and floodlight controller i have successfully tested the performance of a sdn topology. Now i want to reduce the power consumption by each device. Is it possible through mininet or any other tool i need? If i can acheive it through mininet, then provide me the procedure.
Its really urgent for me. Please help me. many many thanks.
I have a university project to build a soft load balancer in SDN/OpenFlow (Linux) environment. I'm thinking to use mininet as OpenFlow network simulation. Can you help me to find if and how we can accomplish the below requirements with mininet or should I consider some other simulator?
1. Customized topology with "4 servers and 48 client nodes" "The interface shall contain classification of client nodes having different requirements of bandwidth at different times. This shall be 4 periods with different bandwidth distribution."
2. Which OpenFlow controller can fulfill these requirements? "Measure Performance and Utilization Statistics" a. Throughput b. Delay c. Utilization d. Load Distribution e. Response time
This project requires designing a network load balancer with OpenFlow that will provide GUI based interface to the network administrators. The data from the GUI will be fed to the load balancing controller that will coordinate with network nodes to manage the routes to the server.
Please answer whichever part of the question you can guide me for.
Thanks in advance.
I downloaded the Mininet VM and I have two windows 7 vms. I want to use the two windows 7 vms as hosts in Mininet. Please how can I go about that?
I am working with SDN to manage flows in a network. I wanted to experiment/know if there is a way I can simulate different radios(Bluetooth,Wifi,Zigbee) which work in the same ISM band to better manage the whole environment. Any help is appreciated. Also best wishes for the new year
Please suggest me some link that might help to write python code that can measure the delay of a specific path (the path that I am interested) using pox as a controller. Though I have found opennetmon in https://github.com/TUDelftNAS/SDN-OpenNetMon and tried with this one and its not working. So I need some alternative way that might help me.
Can anybody suggest me how to achieve reliability , fault tolerance in SDN.
Further will mininet simulator is good to calculate the performance, reliability etc of SDN
In future can I combine opportunistic networks with SDN in terms of reliability and fault management. If yes how to achieve it and how to get the code for it????
Anyone has more information or affiliated with this organization? I am trying to understand if it is legitimate organization.
Here is what it is written at their website. http://vision-science.com/about.html
VISION SCIENCE RESEARCH SDN BHD, which is short for VSR, is a mature international academic exchange platform jointly established by worldwide universities, research institutes and enterprises in Malaysia. We have been committed to international academic exchange planning services for years. With mature and innovative management team and scientific conference service system, we cooperate with universities, academic research institutions and R&D enterprises all over the world. So far we have successfully published many influential academic journals, and invited nearly 3,000 well-known scholars, experts and senior executives to participate in academic activities.
VSR converges the professional academic resources all over the world to build a first-class academic exchange platform which aims to promote academic exchanges, disseminate the cutting-edge technological information, and organize academic conferences & science salon. Everything we do is for academic exchanges.
I am using mininet and i want to monitor the flows which enter in the controller and FEs to see the performance metrics like Bw, delay, and etc.
please suggest monitoring tools to monitor the SDN network (controller and FEs).
Thanks a lot
I want to connect an optical network simulated in OMNET++ to an SDN controller of MININET and also wants to control my network with that controller. Can anyone suggest me how can I connect these?
Thank you in advance.
We have Aruba switches , in virtualbox one vm running with SDN controller and another vm running minnet topology we need to connect mininet switches with physical switch to make a topology. Anybody help us to configur, adapter setting and bridge configuration in detail.
Thanks in advance.