This interview was for one of the acquisitions that Riverbed made. I had interviews with the VP engineering, architect, a person from the product management and QA director. They gave me a very good overview of what they do and what they expect me to do.
The questions I was asked were Java, Networking because of my background in those areas. Very open discussion, they went out of their way and answered the questions I had for them. This was followed by a second round of coding interviews. I was given a set of problems and the code was expected in an hour. Very basic OOP stuff. Great experience.