C2960-lanbasek9-mz.122-44.se6.bin

Based on internal testing (2010-2020 era):

A common misconception is that you can load a newer IOS 15.x image onto a switch running this binary. C2960-lanbasek9-mz.122-44.se6.bin

was unique because it represented a "high water mark" of stability before Cisco began aggressively pushing the 15.x train, which required more memory (RAM/Flash) and sometimes new feature licenses. Based on internal testing (2010-2020 era): A common