maxPacketSize(): number
Returns the maximum packet size for sending messages via network cards.
Defaults to 8192. You can change this in the OpenComputers configuration file.
Every value in a message adds two bytes of overhead. (Even if there's only one value.) Numbers add another 8 bytes, true/false/nil another 4 bytes, and strings exactly as many bytes as the string contains—though empty strings still count as one byte.
The Minitel MTU should be calculable from the OC max packet size.
The Minitel MTU should be calculable from the OC max packet size.