That's a system in which each of the four platforms runs somewhere in your organization, but none work together. Chances are, you're somewhere between the dream and the nightmare, in a quest for NOS nirvana.
Every operating system has strengths and weaknesses.
The key to success is knowing how to leverage each one's best features. Like every other networking technology, the NOS is diverging. The vendor that can best meet these needs is the one that will likely be seeing the money from your company. We're here to help you navigate through the issues, to highlight some critical components and, ultimately, to help you find a good fit for your company. Because one size doesn't fit all, we didn't select an Editor's Choice award winner.