2 interview rounds - 1 Technical and the second was an HR round but more of a formality. Technical round was pretty long - almost 2 hrs. It's been a long time since the interview but majority of the questions were standard C/C++ based from career cup - knowledge based, string manipulation, linked list. There was some grilling on projects and resume. 1 puzzle to top it all of. Almost no Computer Networks questions, even though it's a networking products company.