I'm studying for CCENT and I'm using the Packet Tracer to practice along. I've become a little confused in regard to setting up SSH on some of the switches. Packet Tracer has the 2950-24, 2950T, 2960 switches and neither seem to support the AAA command. The 3560-24-PS does. So I've been able to successfully setup SSH for the 3560.
I'm just trying to understand why the other switches don't seem to support this.