Cap Question

SnotRocket · Post by **SnotRocket** » Fri Aug 02, 2002 9:46 am

Greetings fine friends,

I have a question concerning caps and No it is not how to uncap my cable modem..lol

My cap is currently set at 1mb down and 128 up....I consistently reach 950 and 122 on speed tests. If my cap is at 1mb then why do i get a burst of 2.7 mb or higher at the start of a download? My supplier is Cox! It seems to me that a cap is a cap, the speed should never surpass it. Does the modem initially have no cap and then the headend see throughput and catches it? The bursts usually last for 30 seconds or longer and my speed drops toward the level of cap. This puzzles me! Probably one of you experts can tell me the technology behind this perplexing syndrome.

Best,
Snot..my real name is Ricky....I'm not really Snot

CaptainSpeleo · Post by **CaptainSpeleo** » Fri Aug 02, 2002 11:36 am

Your speeds are over 90% of your ISP's caps, so you're doing okay.

I'll let one of the experts answer your question for you.

Frank's Windows 95/98 Tips

joecool169 · Post by **joecool169** » Fri Aug 02, 2002 11:26 pm

When you download a file, the little window that reports speed is reporting the rate at which data is transferred from the TCP/IP buffer in your computer (corresponds to your RWIN). It is NOT the speed at which data is transferred over the modem.

- Kip Patterson

He was speaking of dial-up but it seems to me the same would apply------if I'm wrong just correct me

SnotRocket · Post by **SnotRocket** » Mon Aug 05, 2002 8:41 am

I see....I am using NetPerSec to monitor the speeds. Is this the case with it also? If so, how would you monitor throughput directly from the modem?

Best,
Snot

mnosteele52 · Post by **mnosteele52** » Mon Aug 05, 2002 8:43 am

Cox's caps are 3000/256

.

SnotRocket · Post by **SnotRocket** » Mon Aug 05, 2002 12:51 pm

Cox does not offer the 3000 cap to residental in San angelo, Texas. You can only get 1000/128...unless you are willing to pay 200 a month on a business account.

Best,
Snot

Lobo · Post by **Lobo** » Mon Aug 05, 2002 12:56 pm

Well, get 2nd job, hehehehe

Lobo · Post by **Lobo** » Mon Aug 05, 2002 1:14 pm

Maybe some help:

http://www.pcworld.com/features/article ... g,7,00.asp

neo86 · Post by **neo86** » Mon Aug 05, 2002 2:51 pm

My theory is that when you open a connection to a server you get a burst of data because that's exactly what it is.

ISP's allow an unlimited burst when a connection is established.
Then it's capped...

I checked in my cable modem configuration file and it says

"Maximum Downstream Channel Burst-Unlimited"

Off corse mee stoopid. Maybee mee rong.

SnotRocket · Post by **SnotRocket** » Tue Aug 06, 2002 5:58 am

ahhh....haaa

Finally some information that makes sense.....thanks for that tidbit. so I gather the cap occurs after you start throughput.

Best,

Snot

Lobo · Post by **Lobo** » Tue Aug 06, 2002 9:02 am

After burst, which is computer catching up to download

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