I live in a small apartment. Its wired with Cat6 Ethernet ports in the walls. I am using the Netgate 1100 pfsense router (1Gb speed), with standard TP-Link TL-SG105 5 Port 1 Gigabit Unmanaged Ethernet switches to connect my devices (I have 20+ devices on the network), including the Wifi access point and wifi devices. My ISP plan is currently 300Mbps.
Currently, my Plex Media Server is running on a separate mini-server from my file storage, so the Plex server mounts the media storage over SMB. In addition to this, I have the standard suite of Plex supporting apps (Radarr, Sonarr, etc.; running on the Plex server system) along with Usenet downloader (SABnzbd ; running on the file storage host).
I read that Cat6 Ethernet cables are rated for up to 10Gb. However, the rest of my network equipment (routers, switches, and network adapters on almost all servers) are only 1Gb. So this would be my network speed limit I think.
Considering that I want to open up my Plex server to remote users, but I also still have regular background download tasks running, in addition to the server itself accessing the storage over the network, I am wondering if 1Gb will be enough to handle all this traffic? At what points would you usually expect to see 1Gb not be enough? Supposedly 1Gb comes out to 125MB/s bandwidth, but considering all the connected devices plus traffic over SMB, cant help but wonder how close I am to the limit of what my network can support.