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| New to ADSL broadband, what does 'bitstream' mean? |
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| message from Horse.trader on 28 Jun 2005 |
Having fairly recently joined NTL (512k) broadband, I was told by a BT
engineer that came to remove some RFI filters from my BT line, that, my
(broadband) 'connection' in the exchange was 'bitstream' he seems to
indicate this was good?
My actual connection speed is 2.2mps, but apparently BT cap this to 512k,
which is what I pay for, it certainly seems to be lightening fast, mind you,
compared to 33k dial up, I suppose it would!
Has anyone come across this 'bitsteam' term? The BT engineer said 'it's
bitstream and goes straight out??
No sure what he meant?
Brian Barwick (Huddersfield)
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| Phil Thompson replied to Horse.trader on 28 Jun 2005 |
he meant Datastream if you are NTHell
Phil
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| filthy replied to Horse.trader on 28 Jun 2005 |
bitstream is a term that applies to "packet writing"
"bit" is an abbreviation: binary digit.
Stream to denote as a packet
So to simply explain, when you see the terms 8bit, 32bit
or more commonly 24bit in DVD encoding, or the bit code
for your broadband connection.
Bitstreams are used extensively in telecommunications and computing.
example, the SDH communications technology transports synchronous
bitstreams,
and the TCP communications protocol transports a bytestream without
synchronous timing.
Note the diff spelling of bytestream, this denotes a special "packet" of
8bit, (8 binary digits
streamed as a "packet") so 3 bytestream is actually 24 bitstream as 3xpacket
stream -
but the timing is only synchronous within each packet.
If to be sychronus total, it will be a 24bitstream.
Now put the kettle on and have a cuppa tea.
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| David Taylor replied to filthy on 28 Jun 2005 |
You may (or may not, I'm not entirely convinced, but I can't figure
out why) be right. However, I think the engineer in question was
just confused about IPstream vs datastream.
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| kraftee replied to David Taylor on 28 Jun 2005 |
Now that is far more likely...
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| Horse.trader replied to kraftee on 29 Jun 2005 |
I understand a little more now, it is probably datastream I have.
Thanks again
Brian (Huddersfield)
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| kraftee replied to Horse.trader on 28 Jun 2005 |
Don't think he did either.
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| Lenny Nero replied to Horse.trader on 28 Jun 2005 |
I thought you could have IP or DATA -stream in the UK.
The VP speed of 2.2 makes me think you have a data stream connection.
L.
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Archived message: New to ADSL broadband, what does 'bitstream' mean? (Broadband - Cable, ISP, Modems etc.)
