From: doug_mitton@hotmail.com.invalid
Warren Oates wrote:
>In article <50387c97$0$1388$c3e8da3$69010069@news.astraweb.com>,
> JF Mezei wrote:
>
>> Doug Mitton wrote:
>>
>> > access to and record the results. On the test I am actually getting
>> > 7.08 Meg download and 800 K upload speeds.
>>
>> It is phyiscally impossible for you to get 7mbps on a 7mbps ADSL1 or
>> ADLS2 line.
>>
>> Here is the breakdown:
>>
>> 1452 1452 data
>> 1492 40 IP and TCP header
>> 1500 8 PPPoE header
>> 1518 18 Etherhet Packet Header
>>
>> Carrying 1518 bytes in ATM involves 32 packets totalling 53 bytes each.
>> (48 bytes of payload, 5 bytes of header, last packet padded to 48 bytes)
>>
>> So, to send 1452 bytes of data, you end up sending 32*53 = 1696
>>
>> This means 244 bytes of overhead for 1452 of data or 16% overhead.
>>
>> So you need to reduce your carrier speed by 16% to get the maximum data
>> throughput.
>>
>> >
>> > Its not surprising that the specs don't look good. I have had this
>> > basic (legacy) DSL account for 12 years now and my performance
>>
>> Is your modem 12 years old too ?
>>
>> While you have had this for 12 years, it does not mean that during this
>> time, Bell hasn't done work on the lines or broght DSLAMs closer to your
>> home.
>
>Until recently, we had an 11-year-old modem, on the same "legacy" plan
>that everyone's talking about. One day about 6 months ago it went
>flakey, and so the oul' Woman calls Bell (the service is in her name)
>and gives the details, and (surprisingly) they responded knowledgeably,
>and the modem came back on and I said "tell them it's slow, too" --
>because it had been, it was down to like 3 Mb or a bit more -- and the
>service lady says "oh, hang on" and bumped the speed up right there
>while we were on the 'phone to 7 Mb. They sent us a new modem, of
>course, same speed. The service lady had never heard of the old
>Speedstream that went flakey. The service lady never once went into that
>"are you using the phone cable that came with the modem?" or any of the
>other scripted shit. "Reinstall your system software," remember that
>one? "Oh, you're using a _router_?"
>
>The moral of all that rambling is that you can call Bell and try to get
>your speed bumped up. We have a Bell box of some sort on the corner of
>the street, but we're also only 3 blocks from the CO here in our little
>corner of Anglophone tranquility. Good luck with that crazy Marois woman.
I also remember the Dilbert cartoon where Dilbert is laying on the
couch talking to ISP tech support and saying (something like) ...
"Yes, I'm re-installing ..." This was when he first got his "high
speed" internet at home.
(I thought I had it saved but apparently not ... )
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