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Calculating broadband connection



 
 
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  #1  
Old October 9th 05, 12:50 PM posted to uk.telecom.broadband
ScoobyDoo
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Posts: 18
Default Calculating broadband connection

If someone has a max download connection around 122 KB/sec how do you work
out what his connection speed is (eg is it 1mb, 2mb, etc)?

Thanks


  #2  
Old October 9th 05, 01:05 PM posted to uk.telecom.broadband
ScoobyDoo
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Posts: 18
Default Calculating broadband connection


"Dave" wrote in message
...
On Sun, 9 Oct 2005 12:50:06 +0100, "ScoobyDoo"
wrote:

If someone has a max download connection around 122 KB/sec how do you work
out what his connection speed is (eg is it 1mb, 2mb, etc)?

Thanks


I would say it is most likely 1 meg


And how do you work that out?


  #3  
Old October 9th 05, 01:08 PM posted to uk.telecom.broadband
Lorian
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Posts: 7
Default Calculating broadband connection


"ScoobyDoo" wrote in message
...
If someone has a max download connection around 122 KB/sec how do you work
out what his connection speed is (eg is it 1mb, 2mb, etc)?

Thanks



Divide by 122 to get Mb/sec, LOL.

L.


  #5  
Old October 9th 05, 01:17 PM posted to uk.telecom.broadband
Dan
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Posts: 15
Default Calculating broadband connection

Just multiply the 122KB/s by 8 to get the Kb/s then divide by 1024 to get
the Mb/s.


  #6  
Old October 9th 05, 02:23 PM posted to uk.telecom.broadband
ScoobyDoo
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Posts: 18
Default Calculating broadband connection


"Dan" wrote in message
...
Just multiply the 122KB/s by 8 to get the Kb/s then divide by 1024 to get
the Mb/s.


Thank you Dan, very concise and to the point - just what I wanted to know.

Cheers mate.


  #7  
Old October 9th 05, 02:32 PM posted to uk.telecom.broadband
John
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Posts: 112
Default Calculating broadband connection

In article , Dave
writes
On Sun, 9 Oct 2005 12:50:06 +0100, "ScoobyDoo"
wrote:

If someone has a max download connection around 122 KB/sec how do you work
out what his connection speed is (eg is it 1mb, 2mb, etc)?

Thanks


I would say it is most likely 1 meg


122*8 = 976 Kbps (1 Mbps) connection speed.

--
Hugh Janus Constipation is the thief of time, but diaorrehia waits
for no man!!
  #8  
Old October 10th 05, 12:30 PM posted to uk.telecom.broadband
Marcin Lukasik
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Posts: 22
Default Calculating broadband connection

There are 8 bits per byte. By the time you've added in network overheads,
the byte rate is roughly 1/10 of the bit rate - or looking at it the
opposite way round, multiply the byte rate by 10 to get the bit rate. All
very approximate, but it gives a rough estimate.


What network overheads? And what 1/10? Where did you find such an info?

m.



  #9  
Old October 10th 05, 03:02 PM posted to uk.telecom.broadband
John
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Posts: 112
Default Calculating broadband connection

In article , Marcin Lukasik
writes
There are 8 bits per byte. By the time you've added in network overheads,
the byte rate is roughly 1/10 of the bit rate - or looking at it the
opposite way round, multiply the byte rate by 10 to get the bit rate. All
very approximate, but it gives a rough estimate.


What network overheads? And what 1/10? Where did you find such an info?


Data passing between PCs, etc, need information at the beginning and end
to tell the receiving machine its start, number and ending. This allows
the receiving machine to assemble the e-mail, file, etc, in the correct
order.

There is also data in the data stream with a checksum, which is used to
see if the assembled file is correct.

Other contributions to overheads may include -
1. Data packet clashing;
2. Packet losses, which require packet retransmission (requests and
a response) going on.

The minimum overheard relates to the minimum of 2 bits in every 10 (8
are used for the data packet) = 1/10. The worst case with transmission
losses, packet retransmission and other additions may be as high as 25%.

--
Hugh Janus Constipation is the thief of time, but diaorrehia waits
for no man!!
  #10  
Old October 10th 05, 04:16 PM posted to uk.telecom.broadband
Marcin Lukasik
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Posts: 22
Default Calculating broadband connection

Data passing between PCs, etc, need information at the beginning and end
to tell the receiving machine its start, number and ending. This allows
the receiving machine to assemble the e-mail, file, etc, in the correct
order.

[..]

Yeah, yeah, but you probably do not know how broadband technically works,
do you?
There are no start/stop bits I'm afraid. That's why I asked...
It was used for dialups, but not for the broadband.

Cheers,
m.


 




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