When shopping for cisco components it would help if i knew what the difference would be when it comes to numbers and letters. At first I thought that the last 2 numbers equaled how many ethernet ports there were, for instance 2924 catalyst switch has 24 ports. and the 2501 has 1 port. but then i got a 2505 and it has 8 ports, well really just one ethernet port, but it looks like 8!
So anyways, how to make sense of cisco's naming methods? When you hear something end in a xx50 does it mean something? or start with a 1xxx does that mean anything? or what about x9xx series?
then what about the letters at the end, XL, or M, or G, or PS, or SMI, or EN.
So far it feels as if they draw numbers out of a hat because there's no way of guessing what any of this means. So maybe theres a chart or table to look at which tells me something useful for once?