Before Nexus, I used to have Catalyst 6500 switches. Those 6500 series chassis gave us a lot of problems. Too many problems, actually. And we had a Cisco ASA firewall blade within those chassis. And they were running outdated software. So, in fact, it was the firewall blade that caused us too many problems instead of the chassis. The chassis itself was working well and performing fine, but the firewall card was not suitable for our needs. That was one aspect. Additionally, those chassis had been in operation for more than five years. As we are a local government, we have a policy to renew hardware every five years. That's because we need to maintain all the hardware and software in the latest versions and keep up with the technology lifecycle of the technology we use.
