why not just set both to unlimited?

1 byte = 8 bits

and just to confuse you... 1 nibble = 4 bits

"b" usually means bit and "B" usually means byte.

I have a cable connection through Roadrunner and I can get about 500kb/s down, and 43kb/s up. Before I set up my router with flow-control, I would limit up to 35kb/s so I could browse the web faster while uploading.