Community.Acanac.com

I download alot...
but it never reaches over 500k.. it is too slow

what should i do?

Can you post your modem stat, you have to connect the modem directly on your computer enter 192.168.1.1 or 192.168.0.1 it should be under stauts or medem status copy and paste here thanks

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Without knowning more it's hard to tell exactly what the Original Poster means. If they mean can they download more than 500kbps then no, the top speed profile on residential DSL is currently set at 5056 down and 800 up. On business it's 6016 and about 800 up (correct me if i'm wrong as I'm not too keen on business accounts). So 500k from what your indicating is actually a VERY good download speed.

But as the above poster stated, post your modem stats to make sure you are on the best profile available. If your not sure how to do that make sure you are connected directly to the DSL modem, then in a web broswer type the address 192.168.1.1 and click on "status" then "modem stats". copy and paste that info here.

your right about the business account

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Taken from http://www.acanac.ca/speedtest/
Download Speed: 4389 kbps (548.6 KB/sec transfer rate)
Upload Speed: 633 kbps (79.1 KB/sec transfer rate)

If you take the transfer rate, what you're referring to and multiply it by 8 (8 bits in a byte) you'll see it equals the download speed.
So it's pretty much normal for a 5056/800 profile.

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Good way to show it Fergie and I'm sure you get better results from other sites. (I do)

whiteman

when i download games off steam i reach 1 MB/s
fastest I've ever seen.
my rapidshare premium maxes out at 130 kbps for some reason.
even if i download only one at a time or 7 at a time like i usually do.

Truvativ are you using any download managers to download off rapidshare? I found the fastest one to be flashget, I'm currently downloading at ~600kbs.

If he download a lot from private tracker he can't use any of those two software cause he has to seed everything he takes there and they are not authorised p2p client in those places.

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Impossible on a 5 Mbps connection : (5000 kbps)/(8 bits/byte)= 625 KiB/s theorical max, practical max is less than that (a bit over 500 KiB/s maybe).

I agree, I guess he didn't read my post, either that or didn't understand it.

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well at what time of the day or week is this happening

because i tend to get random throttles once in a while that slam me down to 1.5kb/s, but the tunnel helps alot

usually I'm at

Download Speed: 5941 kbps (742.6 KB/sec transfer rate)
Upload Speed: 645 kbps (80.6 KB/sec transfer rate)

That client could of been put on a ADSL2+ port by mistake . It has happened a few times.

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haha , does giving 20$ to the technician that install the line can help to get such a mistake?

1. To talk clearly about download speed being "too low" we need to establish what the correct expected download speed should be. That involves such limiting factors as DSL sync rate, which may be lower than DSL profile, as well as ATM protocol overhead.

2. It is essential to use accurate measuring instruments. Some tests that have been recommended in this forum frequently show impossible results and cannot be trusted. (A test that reports better results is not a better test. )

3. It is necessary to know how to use the measuring tools. Other traffic on one's system or network will result in lower reading. As can QoS on the router, for example. Or a busy PC. If a test does not produce a sequence of consistent results, either the tool is defective, or your network/system is too unstable to be measured (and expressed by a static value).

4. It is essential to distinguish clearly between network speed and application performance. When we say "download speed", are we talking about our network data throughput capacity, or are we talking about application performance, which may report "speeds" that may be affected by application delays, compression, inefficiencies, application interdependencies, PC constraints, or errors.

5. It is important to check measurement units, overhead values, and arithmetic, whenever mentioning numeric values.


In particular:

ATM protocol encapsulation overhead leaves 85-87%. Thus, a sync rate of 5056 kb/s cannot exceed 5056 kb/s *.87 = 4400 kb/s (550 kB/s) theoretical maximum throughput. 85% would be a more conservative limit. Using this limit we get:

Sync-Rate Max-Throughput(85%)
3008 kb/s 2557 kb/s 320 kB/s
4032 kb/s 3427 kb/s 428 kB/s
5056 kb/s 4298 kb/s 537 kB/s
6016 kb/s 5114 kb/s 639 kB/s
7040 kb/s 5984 kb/s 748 kB/s

These are "theoretical" upper limits, assuming that the data is deliberately constructed for maximum throughput. A speed-test can arrange its data in that manner -- making each packet long enough to just fill an MTU, and to fill all the ATM cells. Real-life data packets are not optimized for speed-test results. Average data encapsulation is about 80% efficient, rather than 85-87%.

A realistic throughput limit in Bytes/s is: 10% of the sync rate in bits/s.

(It would take a sync rate of about 10 Mb/s to achieve a throughput of 1 MB/s.)

The answer to the OP's question is: yes, with 5056 kb/s, the maximum download throughput is about 500 kB/s.


The above calculations are based on the following values (sizes in bytes):

53 ATM cell size (fixed)
5 ATM header
1500 ethernet frame limit (MTU)
8 PPPoE header
20 IP header
20 TCP header