User comments on ISPs
  >> BT Broadband


Register (or login) on our website and you will not see this ad.


  Print Thread
Standard User Schrodingers_Cat
(experienced) Fri 21-Mar-14 17:28:37
Print Post

TBB 4mbps, HTTP 76mbps...what does this mean ?


[link to this post]
 
Have run the speed test twice and even restarted the BT HUB 5, and still it says TBB is 4Mbps and HTTP is 76 Mbps on download. A separate test using System Mechanic says 4Mbps download. I'm on Infinity 2.

The upload speed is 18Mbps.

So what does this mean ?
Standard User BatBoy
(legend) Fri 21-Mar-14 17:36:46
Print Post

Re: TBB 4mbps, HTTP 76mbps...what does this mean ?


[re: Schrodingers_Cat] [link to this post]
 
What does this mean?
TBB is 4Mbps



______________________________________________________________________________________False_Authority_Syndrome__________________
Standard User MHC
(sensei) Fri 21-Mar-14 18:39:59
Print Post

Re: TBB 4mbps, HTTP 76mbps...what does this mean ?


[re: Schrodingers_Cat] [link to this post]
 
Can you link to the test?


~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

M H C


taurus excreta cerebrum vincit


Register (or login) on our website and you will not see this ad.

Administrator MrSaffron
(staff) Fri 21-Mar-14 19:41:03
Print Post

Re: TBB 4mbps, HTTP 76mbps...what does this mean ?


[re: Schrodingers_Cat] [link to this post]
 
Without seeing the graphs hard to say with any certainty but

low tbbx1 and good httpx6 usually means

1. Too low RWIN
or
2. Congestion somewhere

Andrew Ferguson, andrew@thinkbroadband.com
www.thinkbroadband.com - formerly known as ADSLguide.org.uk
The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
Standard User BatBoy
(legend) Fri 21-Mar-14 19:51:19
Print Post

Re: TBB 4mbps, HTTP 76mbps...what does this mean ?


[re: MrSaffron] [link to this post]
 
Ah, now I understand the question. Doesn't it indicate single-thread throttling by the ISP?


______________________________________________________________________________________False_Authority_Syndrome__________________
Administrator MrSaffron
(staff) Fri 21-Mar-14 20:15:13
Print Post

Re: TBB 4mbps, HTTP 76mbps...what does this mean ?


[re: BatBoy] [link to this post]
 
That is another option, but BT Retail has not done that for ages and would break a good number of rules if they throttled tcp 8095 traffic

Andrew Ferguson, andrew@thinkbroadband.com
www.thinkbroadband.com - formerly known as ADSLguide.org.uk
The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
Standard User tthom
(member) Fri 21-Mar-14 21:17:35
Print Post

Re: TBB 4mbps, HTTP 76mbps...what does this mean ?


[re: Schrodingers_Cat] [link to this post]
 
I was getting similar speeds but with ADSL. I find odd that no matter what speed your on FTTC or ADSL still slows down to the 4MB mark

Standard User Schrodingers_Cat
(experienced) Sat 22-Mar-14 01:42:39
Print Post

Re: TBB 4mbps, HTTP 76mbps...what does this mean ?


[re: MrSaffron] [link to this post]
 
I don't think its RWIN, as I have that set by System Mechanic as 256960, and that's worked for years.

As of now ( 01.39 ) the speed test gives different results and TBB is now 71.6Mbps and HTTP is 70.2Mbps.....so whatever the problem was seems to have gone away. Will test again tomorrow around 3pm and see if it returns.
Standard User jcym
(fountain of knowledge) Sat 22-Mar-14 04:54:48
Print Post

Re: TBB 4mbps, HTTP 76mbps...what does this mean ?


[re: Schrodingers_Cat] [link to this post]
 
Don't know why, but on Infinity 2 I find that if I get speed issues, Upload and/or Download, it is, more often than not, after midnight/1 AM than at other times of the day or night. Though I find that I do get occasional bad contention, especially on Upload, from 2200-2230 onwards on certain days of the week, especially Saturdays.
  Print Thread

Jump to