A few weeks ago I was asked to help a client turn up and move everything over to a new network. I have done this many times and this is not an uncommon type of project. In doing network assessments for clients I have found some old equipment still in service, still part of the production network. Well, in this migration and upgrade project I was told there were some old Cisco 6509 switches that will be replaced. I obtained the necessary access and credentials to start taking a look at the existing network. I found the 6509s being replaced and connected to them. To my surprise these were running CatOS. It’s been a while since I have worked with CatOS so I wanted to see how long these switches have been running. Again, to my surprise one of these switches had been up and running continuously for 3196 days. Yes, 8 and 3/4 years of continuous operation. The second switch had only been up for three years due to a power issue three years prior.
It is not very often that you see a network device that has been up for that long continuously. These switches even had a single Supervisor (Sup 2) engine. I tweeted out how long these switches have been running and @carl_niger replied “pics or it didn’t happen :p”.
To see a device that has been operational for that long is not common these days. With cheaper hardware components, software bugs, vulnerabilities, feature enhancements, etc all require network devices to be continuously updated.
It was with mixed emotions to see these switches taken out of service. I was not there, but several days later they were powered down. Well done good and faithful servants.
For @carl_niger, a screen shot of the uptime I took and shared.