Pros
The salary and compensation package are good. The company has an incredibly good reputation on the market (although once you are in the company and if it's not your first job, and you have known better companies, you wonder from where this reputation is coming). So it looks good on your CV.
Cons
No work-private life balance. You are supposed to be connected 24/7, also during your holidays, weekends, sickness leaves, evenings, etc... I have worked in other companies previously (international large companies as well within the ICT sector) so I can compare. Also, there is no "work hard and have fun" spirit. No parties organized for the employees (OK now it's economic crisis but I understood Cisco was not that fun place to work before the crisis either). Nobody having a chat in the coffee corner - so hard everyone is occupied. The workload is huge. Everyone is doing a job that is meant easily for 2 people. At lunch everyone is talking excelusively about work. I also feel that I learn nothing new compared to my previous jobs and that is not a positive sign. The maddeness of the forecast: you have to do it sunday, wednesday and friday !