Cisco 3504 Software Upgrade

If you are an administrator in a network somewhere you probably already know an important fact: Everything needs maintenance. At one point or another you have to upgrade something. In a perfect world, we would have consistent upgrade windows and periods of time we can take down a network for maintenance. If you have that, you are a lucky person. Looking for maintenance windows might fall into the same category as spotting a UFO. Often times, bugs or vulnerabilities bring forth these needed maintenance windows. In this case, I am upgrading a 3504 controller from version 8.5.151.0 to 8.5.161.6. The reason: CSCvs89410. This bug can corrupt images on 3600 and 3700 series access points. Continue reading Cisco 3504 Software Upgrade