Timeline for Is 30 Mbit/s fibre for WAN faster than 30 Mbit/s copper?
Current License: CC BY-SA 3.0
14 events
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| Feb 26, 2018 at 9:00 | comment | added | Nayuki | en.wikipedia.org/wiki/Velocity_factor | |
| Feb 25, 2018 at 5:31 | comment | added | gmatht | Well to put some numbers on this, with ADSL2+ rated at 24Mbps I was getting 13Mbps throughput and 58ms pings to my ISP. With fibre rated at 12Mbps I really get 12Mbps (+-1) and 2ms pings to my ISP. If you are playing a twitch game hosted by your ISP, "slower" fibre may respond 29 times faster. YMMV depending on which copper and fibre technologies are used. Ping measures latency rather than physical propagation delay, but latency is what matters to end uses and the OP didn't seem to ask about propagation delay. | |
| Feb 22, 2018 at 19:45 | comment | added | Ron Trunk | @Jim I didn't use either term. I spoke of propagation delay. | |
| Feb 22, 2018 at 19:19 | comment | added | Jim | Some people would say your argument is that copper can be "quicker" than fiber, but that doesn't make it faster. | |
| S Feb 22, 2018 at 14:48 | history | suggested | user37418 | CC BY-SA 3.0 |
us → µs (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((
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| Feb 22, 2018 at 14:00 | comment | added | psmears | @RonTrunk: No effect on propagation delay, obviously, but it can have an effect on latency, which can often have a big effect on perceived speed... | |
| Feb 22, 2018 at 8:26 | review | Suggested edits | |||
| S Feb 22, 2018 at 14:48 | |||||
| Feb 22, 2018 at 0:31 | history | edited | Ron Trunk | CC BY-SA 3.0 |
deleted 2 characters in body
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| S Feb 21, 2018 at 22:57 | history | suggested | Peter Mortensen | CC BY-SA 3.0 |
Copy edited (e.g. ref. <https://en.wikipedia.org/wiki/Nanosecond>).
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| Feb 21, 2018 at 22:25 | review | Suggested edits | |||
| S Feb 21, 2018 at 22:57 | |||||
| Feb 21, 2018 at 19:36 | comment | added | Zac67♦ | Well, I was referring to WAN: for a few 100 m to some km you can use fiber with 1000BASE-LX for instance which has extremely low overhead (GPON isn't much different) while VDSL and especially ADSL add noticeable encoding overhead = latency. | |
| Feb 21, 2018 at 19:29 | comment | added | Ron Trunk | A more efficient encoding would increase the bandwidth (more info per bit time), but would have no effect on propagation delay. | |
| Feb 21, 2018 at 19:24 | comment | added | Zac67♦ | You might want to be careful with "copper is faster than fiber" - only ancient RG8 and Cat-7+ is faster than fiber (Cat-5&6 are about the same). Additionally, copper requires more elaborate encoding which also costs time. ;-) | |
| Feb 21, 2018 at 19:18 | history | answered | Ron Trunk | CC BY-SA 3.0 |