Here you will find some answer to a similar question:

https://www.researchgate.net/post/someone_know_about_the_a_data_set_for_software_defined_networks

This project provides dataset generation for SDNs: https://github.com/iist-sysnet/OpenSDNDataset

In general, since SDNs relies on traditional TCP/IP protocols, you should be able to use other network datasets. For example:

https://www.kaggle.com/jsrojas/ip-network-traffic-flows-labeled-with-87-apps

https://www.kaggle.com/crawford/computer-network-traffic

Esmaeil Amiri

https://thesai.org/Publications/ViewPaper?Volume=10&Issue=12&Code=IJACSA&SerialNo=86

in this article, they have been used several datasets for classifying network traffic, you can use those.

Take a look at:

Khoa Truong Dinh, Sławomir Kukliński, Tomasz Osiński, Jacek Wytrębowicz, Heuristic traffic engineering for SDN, Journal of Information and Telecommunication, 2020, DOI: 10.1080/24751839.2020.1755528, https://www.tandfonline.com/doi/full/10.1080/24751839.2020.1755528

Existing research papers mostly with smaller datasets. The best way is you can create more nodes and controllers and assign the configuration using mininet simulator

I definitely agree with Ramkumar M P . The best way is to simulate your own topology using Mininet and GNS3. Moreover, you can write your code with python and integrate it into the controller of the SDN.

Dear Esmaeil Amiri

You can use any dataset generated for TCP/IP-based network for traffic classification. SDN also uses TCP/IP and all the header fields will be same. It is better to use benchmark datasets for training and Mininet based SDN environment for generating test data. One of the dataset for traffic flow classification can be found at :

https://www.kaggle.com/jsrojas/ip-network-traffic-flows-labeled-with-87-apps

Dear @ Esmaeil Amiri

There are some trusted sources for the datasets. I recommend you to search on these websites:

https://ieee-dataport.org/datasets

https://data.mendeley.com/

https://datasetsearch.research.google.com/

https://www.unb.ca/cic/datasets/ddos-2019.html

You can find many of the trusted datasets for SDN in any good review paper published in ISI or Scopus journals such as IEEE, Springer, ACM, MDPI, and other journals.

Just search in one of these publishers about

review SDN dataset