David J Taylor wrote:
"John Hasler" <jhas...@newsguy.com> wrote in message
news:87sjh7mlqs....@thumper.dhh.gt.org...
David J Taylor writes:
But in the UK from Virgin Media I have 30 Mb/s down, 1 Mb/s up. I
have been promised an upload speed increase about 18 months ago to 2
Mb/s up, which is more sensible...
Such a very high cable download speed is a peak burst speeds on a shared
medium. Your sustained performance is not likely to be more than a
fraction of it.
Speed tests from a number of sites show 30 Mb/s, and that's over several
seconds. I downloaded the Windows-8 64-bit ISO recently, and the
3,583,707,136 bytes took 48 minutes, 24 seconds, which I make about 7.4
Mb/s, and the 32-bit ISO was 2,711,396,352 bytes in 27 minutes, so about
13.4 Mb/s. That was without any download accelerator (no multiple
connections).
Sustained transfer speeds are a moot point.
You want to know about chanel delays.
In absolute, asymmetricness and variation terms.
Regular DSL here has quite large and spread line delays
though speed is much higher delay is similar or slightly larger than
forex ISDN.
PING 87.186.242.38 (87.186.242.38) 56(84) bytes of data. ( my first pingable
outside node )
64 bytes from 87.186.242.38: icmp_seq=1 ttl=254 time=48.3 ms
64 bytes from 87.186.242.38: icmp_seq=2 ttl=254 time=34.3 ms
64 bytes from 87.186.242.38: icmp_seq=3 ttl=254 time=77.4 ms
64 bytes from 87.186.242.38: icmp_seq=4 ttl=254 time=70.8 ms
64 bytes from 87.186.242.38: icmp_seq=5 ttl=254 time=108 ms
64 bytes from 87.186.242.38: icmp_seq=6 ttl=254 time=89.0 ms
64 bytes from 87.186.242.38: icmp_seq=7 ttl=254 time=109 ms
64 bytes from 87.186.242.38: icmp_seq=8 ttl=254 time=64.1 ms
64 bytes from 87.186.242.38: icmp_seq=9 ttl=254 time=76.1 ms
64 bytes from 87.186.242.38: icmp_seq=10 ttl=254 time=145 ms
64 bytes from 87.186.242.38: icmp_seq=11 ttl=254 time=199 ms
64 bytes from 87.186.242.38: icmp_seq=12 ttl=254 time=104 ms
64 bytes from 87.186.242.38: icmp_seq=13 ttl=254 time=247 ms
64 bytes from 87.186.242.38: icmp_seq=14 ttl=254 time=104 ms
uwe
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