Because collisions do happen on modern switches, and using UDP with no error correction in the protocol would cause those packets involved in a collision to be dropped. Switches are another layer of complexity, latency and expense when a dual port NIC is the cheapest and most reliable way to go if you need to really be sure a UDP packet makes it to it's intended destination with no problems, and has it's own bandwidth not being chugged down by other network communications and are using a dedicated line from the NIC to the device.
Mark On 10/25/2016 12:56 PM, Chris Albertson wrote: > My guess is that people are reading 20 year old information, using two > ports and > sure enough it works just fine. So they claim "I used two ports and it > worked" > so the next person does the same and no one thinks about "why". > > On Mon, Oct 24, 2016 at 7:42 PM, Stephen Dubovsky <smdubov...@gmail.com> > wrote: >> Why would UDP need resends on a shared ethernet port? There are no >> collisions on a full-duplex port & switch (which is pretty much ALL of them >> now-a-days.) Passive hubs went the way of the dodo. ------------------------------------------------------------------------------ The Command Line: Reinvented for Modern Developers Did the resurgence of CLI tooling catch you by surprise? Reconnect with the command line and become more productive. Learn the new .NET and ASP.NET CLI. Get your free copy! http://sdm.link/telerik _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
