The test is designed to detect whether your ISP is using any of the following techniques. Throttling all BitTorrent traffic, Throttling all traffic at well-known BitTorrent ports and Throttling BitTorrent traffic only at well-known BitTorrent ports.
Mar 14, 2020 BitTorrent Test - Test if your ISP is blocking or The test is designed to detect whether your ISP is using any of the following techniques. Throttling all BitTorrent traffic, Throttling all traffic at well-known BitTorrent ports and Throttling BitTorrent traffic only at well-known BitTorrent ports. How to Forward Ports on Your Router - Lifewire
BitTorrent - Wikipedia
Random is preferable, but only if your firewall can cope with it. Otherwise, pick a port yourself - at random - and set up your firewall for port forwarding to that specific port. No port is any better than any other, though you should avoid port Is Port Forwarding for bit torrent risky? - Information For some BitTorrent clients, port forwarding increases performance. Since most BitTorrent clients use random high ports that aren't used for other services, I'd say that there is little to no risk to enable port forwarding of whatever 5-digit port number that the client specifies. How to Use uTorrent and Increase Torrent Download Speeds
What is the best torrent port? - Quora
Port 6881 (tcp/udp) :: SpeedGuide Ports are unsigned 16-bit integers (0-65535) that identify a specific process, or network service. IANA is responsible for internet protocol resources, including the registration of commonly used port numbers for well-known internet services. Well Known Ports: 0 through 1023. Registered Ports: 1024 through 49151.