Sebastian Kuzminsky wrote: > Stephen Wille Padnos wrote: > >> A standard ethernet frame has to be 512 bits (64 bytes) long. This >> includes ethernet framing info, and I think the net payload is 46 bytes >> for a minimum packet. This is aside from any UDP/IP or TCP/IP >> addressing or protocol information. So you probably need at least 3 and >> maybe 4 packets of 64 bytes each >> > > You're describing the smallest possible Ethernet packet. They can be > bigger than that. The Ethernet payload field can be anywhere from 46 to > 1500 bytes long. > > > Some schemes require fixed packet sizes, so you have to split packets to send larger single messages. I think rtnet may require this, but the fixed size is settable when you configure the network. I'd rather not have to fool with splitting packets if it could be avoided.
Jon ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
