Currently renet and this fork are configured to have 1300 byte payloads. However, the netcode implementation uses 1200 bytes as the max payload size (plus 17-25 bytes for the header and MAC).
This matches quinn which calls for a 1200 byte MTU. However, quinn adds additional headers. I measured around 70 bytes for clients, and 90 bytes for servers (via Wireshark).
Solution
Change the default payload size back to 1200 for UDP sockets.
Allow sockets to specify their own max payload size. This opens the way for mega-sized packets for custom data channels that can support it (e.g. in-memory channels can be configured to have 64kb payloads).
Set max payload size to 1100 bytes for the WebTransport socket, to account for the additional headers/encryption.
Problem
Currently
renetand this fork are configured to have 1300 byte payloads. However, the netcode implementation uses 1200 bytes as the max payload size (plus 17-25 bytes for the header and MAC).This matches quinn which calls for a 1200 byte MTU. However, quinn adds additional headers. I measured around 70 bytes for clients, and 90 bytes for servers (via Wireshark).
Solution