Company has many offices across the globe. Dress code depends on the country. Male dress code in Australia is quite flexible. Business shirt/polo shirt, enclosed shoes, pants.
This answer will change next year - Cisco is moving into a new building in North Sydney around mid-late next year which will promote activity based working and showcase all of our technology. At the moment (outside of our demo center) the office is a little bare due to our pending move. The dress code at Cisco is a range of professional business attire to business casual depending on your schedule and who you'll meet. We also have casual Friday's.
Very fun! A lot of room and we have plenty of fun and games incl. PS3s, table tennis, Daytona racing etc.