Data Rate connection query / SNR
Hi All
I have BT Infinity upto 40MB at my local cabinet.
The BT checker says my line can get upto 24MB which I've always been happy with.
I have always got around the 19MB mark but looking at my connection stats I am wondering if I should get more speed?
My Data Rate for connection is always 19991 and SNR up is aroud 6 and SNR down is usually 15-20.
You can see my current connection stats in the table below.
I don't understand why the 'Attainable Rate' shows as '40867'.
Am I missing something simple?
Cheers for looking
Craig
VDSL
Link Status
Showtime
Firmware Version
1412f0
VDSL2 Profile
17a
Basic Status
Upstream
Downstream
Unit
Actual Data Rate
6799
19991
Kb/s
SNR
58
179
0.1dB
Advance Status
Upstream
Downstream
Unit
Actual delay
0
0
ms
Actual INP
0
0
0.1 symbols
15M CV
0
0
counter
1Day CV
16
81
counter
15M FEC
0
0
counter
1Day FEC
34
636
counter
Total FEC
283
13238678
counter
Previous Data Rate
6811
19991
Kbps
Attainable Rate
6799
40867
Kbps
Electrical Length
200
200
0.1 dB
SNR Margin
58
N/A
(US0,--) 0.1 dB
SNR Margin
59
180
(US1,DS1) 0.1 dB
SNR Margin
N/A
179
(US2,DS2) 0.1 dB
SNR Margin
N/A
N/A
(US3,DS3) 0.1 dB
SNR Margin
N/A
N/A
(US4,DS4) 0.1 dB
15M Elapsed time
20
20
secs
15M FECS
0
0
counter
15M ES
0
0
counter
15M SES
0
0
counter
15M LOSS
0
0
counter
15M UAS
0
0
counter
1Day Elapsed time
6321
6321
secs
1Day FECS
4
71
counter
1Day ES
7
56
counter
1Day SES
0
0
counter
1Day LOSS
0
0
counter
1Day UAS
76
76
counter
Total FECS
149
135577
counter
Total ES
7917
38096
counter
Total SES
13
76
counter
Total LOSS
0
10
counter
Total UAS
180
625
counter
Solved!
Go to Solution.
You can test your line here https://www.bt.com/consumerFaultTracking/public/faults/reporting.do?pageId=21
Is there any noise on the phone?
If you have a line fault, you need an engineer to fix it.
Once the instability is resolved, DLM will automatically raise the speed so your SNR Margin goes to 6 when you resync.
If you found this post helpful, please click on the star on the left
If not, I'll try again
Similar Messages
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Date range related query needed
I have table 'ratemast' with following columns and data
begindate enddate rate1
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Please help.Hi,
Here's one way... you may have to alter it to check for count(*) = 0 or any other corner cases.
[email protected](152)> create table ratemast(begindate date, enddate date, rate number);
Table created.
Elapsed: 00:00:00.22
[email protected](152)> insert into ratemast(begindate, enddate, rate)
values (date '2006-12-01', date '2006-12-10', 750);
1 row created.
Elapsed: 00:00:00.01
[email protected](152)> insert into ratemast(begindate, enddate, rate)
values (date '2006-12-11', date '2006-12-25', 950);
1 row created.
Elapsed: 00:00:00.00
[email protected](152)> insert into ratemast(begindate, enddate, rate)
values (date '2006-12-26', date '2007-03-02', 1500);
1 row created.
Elapsed: 00:00:00.00
[email protected](152)> commit;
Commit complete.
Elapsed: 00:00:00.04
[email protected](152)> select * from ratemast
2 /
BEGINDATE ENDDATE RATE
01-DEC-06 10-DEC-06 750
11-DEC-06 25-DEC-06 950
26-DEC-06 02-MAR-07 1500
Elapsed: 00:00:00.03
[email protected](152)> var begin_date varchar2(10);
[email protected](152)> var end_date varchar2(10);
[email protected](152)> exec :begin_date := '2006-12-09';
PL/SQL procedure successfully completed.
Elapsed: 00:00:00.01
[email protected](152)> exec :end_date := '2006-12-13';
PL/SQL procedure successfully completed.
Elapsed: 00:00:00.01
[email protected](152)> @ed
Wrote file TEST.BRANDT_152_20070315150352.sql
1 with dates as (
2 select to_date(:begin_date, 'YYYY-MM-DD') + level - 1 as d
3 from dual
4 connect by level <= to_date(:end_date, 'YYYY-MM-DD') - to_date(:begin_date, 'YYYY-MM-DD') + 1
5 )
6 select dates.d
7 , r.rate
8 from dates
9 , ratemast r
10* where dates.d between r.begindate and r.enddate
[email protected](152)> /
D RATE
09-DEC-06 750
10-DEC-06 750
11-DEC-06 950
12-DEC-06 950
13-DEC-06 950
Elapsed: 00:00:00.02
[email protected](152)> ed
Wrote file TEST.BRANDT_152_20070315150352.sql
1 with dates as (
2 select to_date(:begin_date, 'YYYY-MM-DD') + level - 1 as d
3 from dual
4 connect by level <= to_date(:end_date, 'YYYY-MM-DD') - to_date(:begin_date, 'YYYY-MM-DD') + 1
5 )
6 select :begin_date
7 , :end_date
8 , avg(r.rate) as fee
9 from dates
10 , ratemast r
11 where dates.d between r.begindate and r.enddate
12* group by :begin_date
[email protected](152)> /
:BEGIN_DATE :END_DATE FEE
2006-12-09 2006-12-13 870
Elapsed: 00:00:00.01
[email protected](152)> exec :end_date := '2007-01-15';
PL/SQL procedure successfully completed.
Elapsed: 00:00:00.01
[email protected](152)> @ed
Wrote file TEST.BRANDT_152_20070315151840.sql
1 with dates as (
2 select to_date(:begin_date, 'YYYY-MM-DD') + level - 1 as d
3 from dual
4 connect by level <= to_date(:end_date, 'YYYY-MM-DD') - to_date(:begin_date, 'YYYY-MM-DD') + 1
5 )
6 select dates.d
7 , r.rate
8 from dates
9 , ratemast r
10* where dates.d between r.begindate and r.enddate
[email protected](152)> /
D RATE
09-DEC-06 750
10-DEC-06 750
11-DEC-06 950
12-DEC-06 950
13-DEC-06 950
14-DEC-06 950
15-DEC-06 950
16-DEC-06 950
17-DEC-06 950
18-DEC-06 950
19-DEC-06 950
20-DEC-06 950
21-DEC-06 950
22-DEC-06 950
23-DEC-06 950
24-DEC-06 950
25-DEC-06 950
26-DEC-06 1500
27-DEC-06 1500
28-DEC-06 1500
29-DEC-06 1500
30-DEC-06 1500
31-DEC-06 1500
01-JAN-07 1500
02-JAN-07 1500
03-JAN-07 1500
04-JAN-07 1500
05-JAN-07 1500
06-JAN-07 1500
07-JAN-07 1500
08-JAN-07 1500
09-JAN-07 1500
10-JAN-07 1500
11-JAN-07 1500
12-JAN-07 1500
13-JAN-07 1500
14-JAN-07 1500
15-JAN-07 1500
38 rows selected.
Elapsed: 00:00:00.01
[email protected](152)> ed
Wrote file TEST.BRANDT_152_20070315150352.sql
1 with dates as (
2 select to_date(:begin_date, 'YYYY-MM-DD') + level - 1 as d
3 from dual
4 connect by level <= to_date(:end_date, 'YYYY-MM-DD') - to_date(:begin_date, 'YYYY-MM-DD') + 1
5 )
6 select :begin_date
7 , :end_date
8 , avg(r.rate) as fee
9 from dates
10 , ratemast r
11 where dates.d between r.begindate and r.enddate
12* group by :begin_date
[email protected](152)> /
:BEGIN_DATE :END_DATE FEE
2006-12-09 2007-01-15 1243.42105
Elapsed: 00:00:00.01
[email protected](152)> cheers,
Anthony -
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check the following things
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Hello,
AP 1600 has PHY data rates up to 300 Mbps, and 2600 up to 450 Mbps.
With 1600 AP, if I have a client connected at 300 Mbps on the radio 5 GHz (MCS index 15, 40 Mhz) and another client connected at 130 Mbps on the radio 2.4 GHz at 130 Mbps (MCS index 15, 20 Mhz); how will the AP handle the traffic ?
Will the AP force one of the client to lower data rates, or will it drop some paquets ?
I'm a little bit confuse about the behavior in high density environment,
Thanks a lot,
RegardsGerald,
Wi-fi is half duplex medium and data rate does not equal throughput
Here is a good guide on the issue:
http://www.speedguide.net/faq_in_q.php?qid=374
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It will always drop to the lowest common denominator. So if the switchport is only 100 mbps, that is your bottleneck for traffic that goes over it.
Use some tools like iperf or jperf to do some client-server testing between laptops to see what the actual throughput is.
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Eric -
I am seeing the data rates cycle from 11 mbps to 2mbps and then sometimes a very short spurt on 1mbps. I set the 350 AP custom data rates to 1 basic, 2 basic, 5.5 no and 11 no.
I have a client on win 2k with a 350 pci card installed but I see the same behavior on my laptop lmc card. When the rate is 11 mbps the client disassociates from the AP since we are 5.5 miles away. I use my laptop for site survey work and I have trouble with getting an association when I have a clear line of site and high gain antenna attached to LMC card.
The radio tower has 3 Cisco AP's runing off chanels 1, 6 & 11. I upgraded all 3 to 12.00T SW. I have 3 seperate line running up 240 feet to a MaxRad sectorized omni. i have 3 seperate DC powered RFLinx 250 mw amps at the top of the tower.
All my customers except the 1 I am debugging have Linksys wet11 bridges and they are all running fine with a 1 or 2 mbps setting. The Cisco PCI client card should not try a 11 mbps connection when I have set them for auto rate selection and the AP has the custom settings for 1 or 2 mbps, am I missing something here?You can verify the following things:
Verify that the PC card or PCI adapter is installed correctly.
Verify that the configuration for the SSID on PC matches the access point's SSID.
If your device does not allow broadcast SSID to associate, change the setting to "yes" to see if it allows it to associate.
Temporarily disable any security features on both the access point and the client. If this solves the problem, check to make sure that the Wired Equivalent Privacy (WEP) key you use to transmit data is set up exactly the same on your AP and on any wireless devices with which it associates.
Note the configurations and enter them after a reset.
You can use the guidelines given in the following links:
http://www.cisco.com/univercd/cc/td/doc/product/wireless/airo_350/350cards/pc350hig/pc_ch3.htm
http://www.cisco.com/univercd/cc/td/doc/product/wireless/airo_350/350cards/windows/incfg/win_ch6.htm
http://www.cisco.com/univercd/cc/td/doc/product/wireless/airo_350/accsspts/ap350scg/ap350ch3.htm#80451
Hope this helps!!!!!!!! -
Disable data rate to a specific AP only?
Hello everyone, Im using Cisco 5508 with 7.0.220.0 code and I just wanted to know if its possible to disable some data rates to a specific group of APs and not affect the rest of the APs
Another question is about almost the same thing but related to WLAN Radio Policy. If I enable a specific WLAN to use radio policy 802.11g-only, all the clients using this WLAN can only associate to 802.11g data rates??? are there any other things to consider on about this policy?.
thanks in advance for your time and help!!!!Rasika is right on... you need to upgrade if you want to use RF Profiles...
Another question is about almost the same thing but related to WLAN Radio Policy. If I enable a specific WLAN to use radio policy 802.11g-only, all the clients using this WLAN can only associate to 802.11g data rates???
> Clients can only connect on the 2.4ghz either 802.11b g or n
are there any other things to consider on about this policy?
> Setting the policies on the WLAN just defines what you want to be able to associate to that WLAN. For example, wireless ip phones you might set it to 5ghz only, so phones have to be able to connect using only the 5ghz. If there were any 2.4ghz device only trying to access that wlan, they wouldn't be able to associate. Another example is like guest ssid... I always only allow then on the 2.4ghz, not on the 5ghz.
Thanks,
Scott
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