New modem installation

I'm just curious, I just bought a new Motorola modem which is pitched by Xfinity to replace my older Surfboard. Is there any need for me to do anything other than hooking it up? It's just a network bridge (physical net-to-physical net) so there's not much to do. I get you might need to do some new provisioning. Is that it? I don't want to be down for any period installing it. Thanks.