I had a telephonic round followed by a onsite panel interview with 3 interviewers. I was asked on routing basics and python scripting. Thereafter I was chosen for next round to meet VP of Engineering. After VP gave green signal I was interviewed by the CEO, Pravin Akkiraju. In total 3 days of interviews, one for each round. The whole process took nearly 2 months, on top of that I didn't get the offer as the CEO felt otherwise. Good for me though! I didn't want to join Cisco, so looking back, I feel great!