In SDN world, network is programmable. Anything that is programmable, often revised / modified / changed . And if multiple actors do this change, then what happens ???

Sounds like an SCM ( Software Configuration Management ) ?? Exactly..

Recently I came across a research paper, wherein the authors had applied popular GIT revision control over flow management and they claim that, their approach would much benefit in case of multi-cluster / batch transactions.

Check this out :

PDF : http://yuba.stanford.edu/~srini/papers/sosr15.pdf

PPT : http://yuba.stanford.edu/~srini/papers/sosr15.pptx

Especially read the concluding remarks. Very interesting.

Although I knew / understand network is programmable, it didn’t occur to me that, the moment network becomes programmable, all the downsides of software do follow to networking world.

Nothing comes free indeed.