I have a wireless router which has 4 10/100 jacks. I feed one of the jacks to an 8-port switch, and everything connects to the switch. Works well.

I'm looking at upgrading the internal network to 1 Gb. My initial plan was to install an 8-port 10/100/1000 switch and connect my desktops to the RAID server. All will, naturally, have 1 Gb NICs. For connecting to the internet, the 100 Mb link to the router will be more than adequate.

My thought was that if I connect desktop A to RAID server B, the transfer will go through at (something like) 1Gb. However, on further reflection, it might be that the signals have to go through the router, which cannot handle anything above 100 Mbs. So, I would have to upgrade the router as well.

Is this the case or am I missing something?