On Tue, Nov 4, 2008 at 4:13 AM, Gerhard wrote: >>Go back to the topic, are you saying that determinism has nothing >>to do with guaranteeing no data loss. I feel that is a bit strange. > > If you mean to say that "network is deterministic" means "network > guarantees no data loss (no matter what)", then I don't think there is > a single deterministic network on this planet, and I doubt there ever > will be. Which would make the term "deterministic" of little value. I > think that in order for it to be useful, the "no matter what" part > needs to be specified differently -- which then means that certain > types of packet loss (like cutting cables) are excluded from the > analysis of whether a network is deterministic or not. > No I am not talking about cutting cables. That is covered by redundancy or reliability or physical security. I am talking about normal situations -- data loss due to network congestion or things like that. I am still thinking that "network is deterministic" should have something to do with "network guarantees delivery of data packet with certain repeat rate limit" or similar. In BillW's first reply, he mentioned the following. ********* "Determinism" means that you can guarantee packet delivery within a particular maximum time; latency and jitter UP TO that time are free to vary all over the place. ********** Xiaofan -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist