Software Defined Network - Security Latest Challenges

[netbeginner]

Hi All, 

Hope You all are good in health and doing great !!!

I have bit clue that this may not be the correct forum to ask (probably) but still ...as I am in requirement of some expert level guidance and I am sure that I can get something from here.

I am seeking some suggestions on Software Defined Network ( SDN) - Security related latest / ongoing challenges. Would be great if anyone here can list down some latest challenges in SDN . I need the same to complete my dissertation.

Regards

[Flavio Miranda]

Hi

 Wondering about the word Challenge in the way you used. And, by SDN you refer to SDA, SDWAN or ACI ? 

Which one I think has different Challenges as ACI is inside the Data Center, SDA is inside the Corporate and SDWAN is the connecting point between then.

I am send this link where Cisco discuss the concept of zero trust. 

https://www.cisco.com/c/dam/en/us/services/collateral/sdn-security-white-paper.pdf 

[netbeginner]

Hi Flavio, 

I was referring overall SDN ....

thanks for sharing the White-Paper but I am more looking for Security related limitation .