Interleaving or Fast Latency?

I have bee looking at my ADSL stats quite a lot recently and have published here a very recent one where the DL in over 16Mbps but then realise that my Latency has changed from Interleaving to FAST. Should I read anything into this? Ist this to maintain a more stable connection and will it automatically change back to Interleaving?

HHGTTG asked:
Ist this to maintain a more stable connection and will it automatically change back to Interleaving?
It's actually the oposite ...
An interleaved connection will give better stability but a slight cost, that being the extra overhead consumed and a degree
of latency (sluggishness) depending on the depth of the interleave. There are various levels of interleave depth, according to the amount of error correction that DLM needs to stabilise.
If your line is running fastpath ... in reality it means that it is above average in conditions condusive to transmit the DSL and is ok to go as it is .... any error correction will be done by a trellis modulation system within the code of the DSL standard.
Also ... and this is purely my own opinion. BT Wholesale who own the technical systems and such for their Dynamic Line Management systems which run the BT network, never publicly publish details of technicalities about DLM, for obvious reasons .... however it is my own opinion that more and more lines are now modulating fastpath DSL which leads me to think they have changed the goalposts slightly about interleave, simply because gamers prefer fastpath to allow for better latency free gaming.

Similar Messages

Want to Change Latency from "Interleaved" To "Fast...

I used to have "Fast" latency which helped smooth play on xbox live, but when i turned my router on and off over a period of a few days (When i was rearranging my room) i noticed that my internet had slowed down, i checked and i had an "Interleaved" latency type! I wish to go back to "Fast" as it helped.
Thanks.

Hi Welcome to the forums
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once you have posted the information asked for then the community members can help you more
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Interleaving or Fast connection NOW SOLVED

Hi All,
can someone tell me what the difference is between Interleaving or Fast connection?
I am on Interleaving connection and get full wack 8 Meg connection where as my sis is on about 6 meg and lives round the corner and is on fast connection.
We are both on the ingatestone exchange.
Hope someone can advise
CG
CG Over An Out
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try this link it trys to explain what the difference is between them. But in basic interleaving helps to maintain a stable line when on a ADSL max connection and trys to correct errors. so if you have a unstable line setting in to fast would not be advised.

Latency Type Change Request - Interleaved to Fast ...

Hey there I would like to request to have my Latency Type changed to Fast Path for better gaming experience
here is my HH4 stats:
Thanks
Darren
1. Product name:
BT Home Hub
2. Serial number:
+068343+NQ41704711
3. Firmware version:
Software version 4.7.5.1.83.8.173.1.6 (Type A) Last updated Unknown
4. Board version:
BT Hub 5A
5. WAN:
PPP Connected
6. Data sent/received:
1.0 GB / 1.5 GB
7. Broadband username:
[email protected]
8. BT Wi-fi:
No
9. 2.4 GHz Wireless network/SSID:
BTHub5-KP2X
10. 2.4 GHz Wireless connections:
Enabled (802.11 b/g/n (up to 150 Mb/s)) 20 MHz, WPS enabled
11. 2.4 GHz Wireless security:
WPA2
12. 2.4 GHz Wireless channel:
Automatic (Smart Wireless)
13. 2.4 GHz Wireless network/SSID:
14. 2.4 GHz Wireless connections:
Disabled
15. 2.4 GHz Wireless security:
None
16. 2.4 GHz Wireless channel:
Automatic (Smart Wireless)
17. 2.4 GHz Wireless network/SSID:
BTWifi-with-FON
18. 2.4 GHz Wireless connections:
Disabled
19. 2.4 GHz Wireless security:
None
20. 2.4 GHz Wireless channel:
Automatic (Smart Wireless)
21. 2.4 GHz Wireless network/SSID:
Auto-BTWiFi
22. 2.4 GHz Wireless connections:
Disabled
23. 2.4 GHz Wireless security:
None
24. 2.4 GHz Wireless channel:
Automatic (Smart Wireless)
25. 2.4 GHz Wireless network/SSID:
26. 2.4 GHz Wireless connections:
Disabled
27. 2.4 GHz Wireless security:
None
28. 2.4 GHz Wireless channel:
Automatic (Smart Wireless)
29. 5 GHz Wireless network/SSID:
BTHub5-KP2X
30. 5 GHz Wireless connections:
Enabled (802.11 a/n/ac (up to 1300 Mb/s)) 80 MHz, WPS enabled
31. 5 GHz Wireless security:
WPA2
32. 5 GHz Wireless channel:
Automatic (Smart Wireless)
33. 5 GHz Wireless network/SSID:
34. 5 GHz Wireless connections:
Disabled
35. 5 GHz Wireless security:
None
36. 5 GHz Wireless channel:
Automatic (Smart Wireless)
37. 5 GHz Wireless network/SSID:
BTWifi-with-FON
38. 5 GHz Wireless connections:
Disabled
39. 5 GHz Wireless security:
None
40. 5 GHz Wireless channel:
Automatic (Smart Wireless)
41. 5 GHz Wireless network/SSID:
Auto-BTWiFi
42. 5 GHz Wireless connections:
Disabled
43. 5 GHz Wireless security:
None
44. 5 GHz Wireless channel:
Automatic (Smart Wireless)
45. 5 GHz Wireless network/SSID:
46. 5 GHz Wireless connections:
Disabled
47. 5 GHz Wireless security:
None
48. 5 GHz Wireless channel:
Automatic (Smart Wireless)
49. Firewall:
Disabled
50. MAC Address:
40:f2:01:16:3a:d2
51. Software variant:
52. Boot loader:

What device does the Homehub5 plug into on the WAN side?
Some sort of modem?
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Interleaving to Fast Path Question

Hi,
After recently getting my broadband line issues sorted, I am still experiencing consistant Lag issues while online Gaming on Xbox live.
After reading up at great length on the internet about other peoples issues, it seems that Interleaving is a main factor in playing Call of Duty Games especially. My question is though would I be able to switch to fast path?
My router/modem stats are:
ADSL Line Status
Connection information
Line state:
Connected
Connection time:
3 days, 05:08:45
Downstream:
2,816 Kbps
Upstream:
448 Kbps
ADSL settings
VPI/VCI:
0/38
Type:
PPPoA
Modulation:
G.992.1 Annex A
Latency type:
Interleaved
Noise margin (Down/Up):
5.6 dB / 15.0 dB
Line attenuation (Down/Up):
56.0 dB / 31.5 dB
Output power (Down/Up):
18.7 dBm / 11.9 dBm
FEC Events (Down/Up):
1313806 / 182
CRC Events (Down/Up):
2872 / 100
Loss of Framing (Local/Remote):
0 / 0
Loss of Signal (Local/Remote):
0 / 0
Loss of Power (Local/Remote):
0 / 0
Loss of Link (Remote):
0
HEC Errors (Down/Up):
17536 / 87
Error Seconds (Local/Remote):
0 / 0
Solved!
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that is showing that interleaving is working personally unless you really must have interleaving turned off i would leave it on as it improves stability going to fast path could make your line unstable if you want to go to fast path you need to contact the forum mods this is a link to them and ask them to turn off interleaving
http://bt.custhelp.com/app/contact_email/c/4951
they normally reply by email or phone directly to you within 3 working days
They are a UK based BT specialist team who have a good record at getting problems solved
If you want to say thanks for a helpful answer,please click on the Ratings star on the left-hand side If the reply answers your question then please mark as ’Mark as Accepted Solution’

How can i get fast latency type?

I need low latency for better gaming. Can anyone help me with changing my latency type plz? Thank you!
My stats:
Line state
Connected
Connection time
0 days, 16:35:57
Downstream
6,848 Kbps
Upstream
448 Kbps
ADSL settings
VPI/VCI
0/38
Type
PPPoA
Modulation
ITU-T G.992.1
Latency type
Interleaved
Noise margin (Down/Up)
6.0 dB / 23.0 dB
Line attenuation (Down/Up)
44.0 dB / 28.0 dB
Output power (Down/Up)
19.8 dBm / 11.9 dBm
Loss of Framing (Local)
0
Loss of Signal (Local)
0
Loss of Power (Local)
0
FEC Errors (Down/Up)
20000044 / 0
CRC Errors (Down/Up)
949 / 2147480000
HEC Errors (Down/Up)
nil / 0
Error Seconds (Local)
448

Rottie wrote:
mcpaddy wrote:
since when is a word for the underworld a swear word/profanity
I don't think "underworld" is a swear/profanity, although the four-letter equivilent of "Hades" might be the one which is and perhaps the one you used?
Wonder what BT would make of the BIBLE
If any post helps tick the star box on the left
Just cause Im paranoid dont mean they are not out to get me

Need switching back to interleaved.

Couple of days ago the homehub3 has decided it will switch back to "Fast" latency from "interleaved" and has been causing issues which has needed me to unplug the DSL line and replug it back in after the Broadband light has switched off every evening and morning. This is causing issues when attempting to play games on steam or minecraft such as horrible lag and being kicked off the server cause i am "moving too fast" in minecraft
Can I phone up BT India and get them to switch me back to interleaved as "fast" latency is having more issues than normal with "interleaved" or do the mods need to do this.
CUrret stats:
ADSL Line Status
Connection Information
Line state:
Connected
Connection time:
0 days, 02:38:25
Downstream:
10.61 Mbps
Upstream:
1.113 Mbps
ADSL Settings
VPI/VCI:
0/38
Type:
PPPoA
Modulation:
G.992.5 Annex A
Latency type:
Fast
Noise margin (Down/Up):
4.4 dB / 5.9 dB
Line attenuation (Down/Up):
32.0 dB / 19.8 dB
Output power (Down/Up):
19.8 dBm / 12.4 dBm
FEC Events (Down/Up):
0 / 0
CRC Events (Down/Up):
1158 / 15
Doing a bt speedtest it just gave me error 500 using chrome, firefox and internet explorer and using an ethernet connection.
Can I phone up BT India and get them to switch me back to interleaved as "fast" latency is having more issues than normal with "interleaved" or do the mods need to do this.

Hi I suggest you contact the forum mods they should be able to get your problem sorted for you this is a link to them
http://bt.custhelp.com/app/contact_email/c/4951
they normally reply by email or phone directly to you within 3 working days
They are a UK based BT specialist team who have a good record at getting problems solved
If you want to say thanks for a helpful answer,please click on the Ratings star on the left-hand side If the reply answers your question then please mark as ’Mark as Accepted Solution’

I'd like to change my latency type from Interleavi...

I would like to change my latency type from Interleaving to Fast. How would I go about doing so/who do I contact.
I have checked previous threads, but old links on such threads do not work anymore.
Solved!
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Thanks for the quick reply. Things make more sense now. I read up about the DLM and yes apprently it must have changed it over around the time I had a lot of visitors with their laptops and what not. This is just an educated guess here but a lot of resetting of the router went on during their visits, at least once or twice a day for a while now and it's possible THAT is what made the change of the latency setting.
It may be fine if I just advise everyone to not touch it at all and it will change back in a period of time. But just to check because I do know myself that the line and connection was pretty stable even before all this, with a lot better latency (which is what I want the most). Is it possible to force change it back? Thank you.

ADSL keeps switching between 'fast' and 'interleav...

Hello
I wonder if you could tell me if there is some reason why my line profile / ADSL latency keeps being switched between 'fast' and 'interleaved'. Everytime it is switched from interleaved to 'fast' I lose download speed. It has just changed again today and as a result my download speed has (according to my BT Home Hub Manager) dropped from 6.3MB (yesterday) to 3.2MB (now). Is it possible to have the line profile left as 'interleaved' so that I can enjoy the extra download speed ?
Thanks for your help.
Fortinbras
Solved!
Go to Solution.

Hi
I am sorry to see you are having problems with your BT Service
I suggest you contact the forum mods they should be able to get interleaving turned on for you this is a link to them http://bt.custhelp.com/app/contact_email/c/4951
They normally reply by email or phone directly to you within 3 working days they will take personal ownership of your problem until resolved and will keep you informed of progress
They are a UK based BT specialist team who have a good record at getting problems solved
This is a customer to customer self help forum the only BT presence here are the forum moderators
If you want to say thanks for a helpful answer,please click on the Ratings star on the left-hand side If the reply answers your question then please mark as ’Mark as Accepted Solution’

Want to change latency type on my line

Last year I had a new line laid into my home after 3 years of problems with the old one. Earlier this year I opted for the upto 20 Meg speed, my line is outputting around 18.6 which is fine however recently i've been experiencing disruption to my line.
Sometimes the Hub will reset itself, then when it comes on the broadband light flashes yellow for ages whilst the other lights are blue sometimes upto 5 mins will go by, requiring me to reset it manually to achieve a stable blue light & connection.
I've checked my latency type and found its interleaved. My old line was Fast type as I a game alot and I need a fast stable connection. I think it must have been an oversight when they connected my new line at the exchange they forgot to use the same settings, I do have an I-plate installed so its not an interference thing either.
Is there anyway I can get my Latency set to Fast type please?. My download speeds are stable although sometimes erratic so its not a line problem I have just an exchange setting.

DC74 wrote:
Right, then clearly theres something not quite right with my line then, shouldn't be taking ages to re-sync after a reset. Is fast latency still better for gamers though?
Depends on your definition of "better for gamers".....
You either have an interleaved connection that affords stability, maintained IP profile, and maximum sync rate, with maybe the addition of roughly 20-40 milliseconds latency to server connections, as a worst case scenario.
Or you have a slightly lower latency connection, with no forward error correction, possible rise in noise margin, resulting in lower sync speeds and associated IP profile and throughput.
A no brainer really .... over to you.

Slow Speed after Latency type has been changed

Hi,
the last few days I have noticed that my broadband speed has gone down hill big time.. according to speedtester.bt.com my DSL connection rate is: 20504kbps (down-stream) and my IP Profile is 18090kbps, but my download speed is 2411kbps which is below the acceptable range for my connection.
I logged onto my BTHH3 and found that my latency type has changed from Interleaved to Fast, I have noticed that my CRC & HEC (down) are much higher than before..
Should I leave it for a few days to see improvment or ask the mods to change the latency type back to Interleaved
Thanks in Advance
Andy
VPI/VCI:
0/38
Type:
PPPoA
Modulation:
G.992.5 Annex A
Latency type:
Fast
Noise margin (Down/Up):
3.7 dB / 5.0 dB
Line attenuation (Down/Up):
18.2 dB / 9.4 dB
Output power (Down/Up):
16.4 dBm / 12.7 dBm
FEC Events (Down/Up):
0 / 21224
CRC Events (Down/Up):
102683 / 4252
Loss of Framing (Local/Remote):
0 / 0
Loss of Signal (Local/Remote):
0 / 0
Loss of Power (Local/Remote):
0 / 0
HEC Events (Down/Up):
722956 / 10595
Error Seconds (Local/Remote):
2061 / 2095

Results from Speedtester.bt.com
Download speedachieved during the test was - 3887 Kbps
For your connection, the acceptable range of speeds is 4000-21000 Kbps.
Additional Information:
Your DSL Connection Rate :20376 Kbps(DOWN-STREAM), 1176 Kbps(UP-STREAM)
IP Profile for your line is - 17976 Kbps
Upload speed achieved during the test was - 917 Kbps
Additional Information:
Upstream Rate IP profile on your line is - 1176 Kbps
I also re-installed my BT HH2 and that connects using Interleaved as to Fast via BT HH3, while my HH2 is connected I get 15.82mbps via speedtest.net but I keep losing my connection - don't think my HH2 likes 3.7 dB (down) noise margin.. but if I re-connect my HH3 I have a steady connection but 1.6 to 2.2mbps via speedtest.net
I think its time to get a new non-bt router/modem....?

BT Infinity - Changing Latency type

Hello!
I have read a few articles that say that you cant change your latency type from Interleaved to Fast Path with BT Infinity because the modem is in a little white box and not part of the HH.
This is only the case for some people though. I still connect with the telephone wire and not the WAN port. I have always had a brilliant connection (noise wise etc.) and have always hit the theoretic max of my broadband on ADSL2 and now VDSL.
Would I be able to request my latency type be changed to Fast Path (as I assume it isn't that, although you can't tell with modern HH's) as I do not have this seperate modem box?
Thanks,
Craig

That's right, you can't. DLM handles the transition automatically.
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Changing Latency

Created an article about a month and a half ago after my connection screwed up, but its been sorted for a few weeks and was wondering how i contact the mods into getting changed from interleaved to fast?
ADSL line status
Connection Information
Line state
Connected
Connection time
17 days, 15:01:00
Downstream
8,128 Kbps
Upstream
448 Kbps
ADSL Settings
VPI/VCI
0/38
Type
PPPoA
Modulation
G.992.1 Annex A
Latency type
Interleaved
Noise margin (Down/Up)
10.6 dB / 27.0 dB
Line attenuation (Down/Up)
29.3 dB / 15.0 dB
Output power (Down/Up)
12.4 dBm / 1.8 dBm
Loss of Framing (Local/Remote)
0 / 0
Loss of Signal (Local/Remote)
0 / 0
Loss of Power (Local/Remote)
0 / 0
FEC Errors (Down/Up)
31039 / 373
CRC Errors (Down/Up)
30591 / 290
HEC Errors (Down/Up)
306141 / 258
Error Seconds (Local/Remote)
10570 / 446
Solved!
Go to Solution.

this is a link to the mods remember going to fast path can make your line more unstable unless you are an ardent gamer i would reccomend staying on interleaved
http://bt.custhelp.com/app/contact_email/c/4951
they normally reply by email or phone directly to you within 3/5 working days
They are a UK based BT specialist team who have a good record at getting problems solved
If you want to say thanks for a helpful answer,please click on the Ratings star on the left-hand side If the reply answers your question then please mark as ’Mark as Accepted Solution’

Get interleaving Turned off?

Hi,
My problem is that around 2 hrs ago my hub dropped its connection and reconnected , however now the latency type is on Interleaved not FAST anymore. I play alot of games online and this is important to me. When contacting BT Live Chat they said they cant turn it off as i am on ADSL+2 line, but seems strange that in the past about 6 months ago they where able to?
Is this correct, or are they telling me lies?
Thanks

Interleaving will have turned on automatically if the exchange equipment has seen your line as unstable could you please post your hub stats then we can advise you further
If you want to say thanks for a helpful answer,please click on the Ratings star on the left-hand side If the reply answers your question then please mark as ’Mark as Accepted Solution’

Software Monitoring Latency

Folks: I know some latency is unavoidable but this seems way too high - I'd say around 20-50 msec, something like a slapback echo, pretty much unusable. I have no plugins on the channel, Low Latency mode is checked, Compensation set to "Audio and Software Instruments", limit 5 msec. Have tried IO buffer sizing from 1024 down to 32 samples seemingly with no effect. Funny thing, I don't remember this problem from when I was using Logic 7. Would appreciate some ideas.
thanks Bark

you are on M-Audio?
I think you can obtain a faster Latency by using the Mac Built-in Audio Input...
M-Audio is a Avid product... it is not good for Logic..
Ask to M-Audio and check for drivers...
there are problems with Leopard 10.5.6 and Avid device drivers!
G

Interleaving or Fast Latency?

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