Rusty Dekema - [EMAIL PROTECTED] wrote: >> Does anyone on the list know if such a connection has an asymmetric >> latency? How much? I can't think of a way to measure it (it's my only
> Say for instance that your ADSL line syncs at 6000kbit (6,000,000 bits > per second) down and 384kbit (384,000 bits per second) up. A typical > NTP packet is approximately 80 bytes (640 bits). Assuming the NTP > packets are not queued behind other traffic on the line, it > will/should take approximately 1.67ms (640 bits / 384000 bits/sec) to > transmit an NTP packet on the line's upstream link, but only 0.11ms > (640 bits / 6000000 bits/sec) to receive an NTP packet on the line's > downstream link. Is this not true only for the case where one is saturating the link and, therefore, being throttled to the link max speed. If one where only using 100kbits up/down in the above example, would things not be symmetrical and only start to be asymmetrical when the traffic reached a point where one side is being throttled to the speed? Just wondering. sjm ---AV & Spam Filtering by M+Guardian - Risk Free Email (TM)--- _______________________________________________ timekeepers mailing list [email protected] https://fortytwo.ch/mailman/cgi-bin/listinfo/timekeepers
