Axis wrote
Any general feedback about the consequences of setting these too high or too low would be appreciated as well. I am not sure I fully understand these parameters in general--what the difference between them really is and what consequences will occur from changing them to server function, etc.
If the Keep-Alive Requests is too high, all depends on the browser your visitors use. Some of them will get a HTML page and all its images from the same (or at most 2 connections). So if you have a page with many images (>20), the visitor may feel that the images are loaded very slowly (because they are being downloaded one after the other over the same connection.) But this is an extreme situation.
If the Maximum Simultaneous Requests is very high, you can accept many simultaneous requests but the disadvantage is that on a highly loaded computer (or a slow computer), every connection will be served very slowly as they all have to share the same processing power. It is similar to opening 50 applications on the same computer: your machine will be slower than with the same computer running only 10 of them.