Software-defined Networking (SDN)

[Sam M]

So I just read an article about " The good. bad and the ugly of software-defined networking security" and I have 2 questions .

#1 Why do companies use SDN if the controller itself isn't as secure? The on-demand approach is vulnerable to failure while the predefined route model. anyone can take control of it

#2 Can people in rural/remote areas use SDN ? like does this software need to have internet access or not?

 

[sfx2000]

It's complicated, mostly because SDN is pretty much inside the core network - where there is a fair amount of security around the controller...

Why SDN?

It goes back to the cloud in general - SDN allows the ISP's to move to generic/whitebox hardware instead of bespoke platforms.

At the edge coming into the home/small biz - SDN has no impact to your network - but there might be elements of SDN inside the ISP provided box/gateway/modem sitting on your desk.

 

[sfx2000]

At a high level - openstack is probably a good place to start...

https://www.openstack.org/software/

 

[janyao]

i agree with sfx2000