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Author Topic: Address Based Filtering Technicolor TG582n FTTC slows down throughput speed  (Read 21341 times)

SE

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Hi guys

I've found a problem with the Technicolor TG582n FTTC supplied by PlusNet

When using Address Based Filtering it slows down fibre from 47Mbps to as slow as 8Mbps and 0.5 Mbps up (max 20Mbps)

The settings were set to block

As soon as I turn Address Based Filtering off it's back to full speed
To me it looks like the router cpu is underpowered

Has anyone else come across this at all?

« Last Edit: November 13, 2013, 03:12:09 PM by kitz »
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waltergmw

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Re: Address Based Filtering Technicolor TG582n FTTC slows down fibre
« Reply #1 on: November 08, 2013, 08:19:37 AM »

Hi SE,

I'd be interested to know what throughput results you obtain from e.g. a BT speed test.

Kind regards,
Walter

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SE

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Re: Address Based Filtering Technicolor TG582n FTTC slows down fibre
« Reply #2 on: November 08, 2013, 05:22:53 PM »

Hi SE,

I'd be interested to know what throughput results you obtain from e.g. a BT speed test.

Kind regards,
Walter

Hi, m8ty
I made the tests (pics link) last night before I read your post, hope speedtest.net is okay

www.tiikoni.com/tis/view/?id=31173c8

I tested with bt and got the same results but never snapped them  :blush:
also since getting fibre, the bt test never goes to part two, don't know why  ???

The max I saw was 20Mbps, low as in the snaps was 8
The 47Mbps was with the routers Address Based Filtering turned off
turn it on, back to slow, off, back to full speed
I only had 2 sites blocked, facebook.com and facebook.co.uk

I must get a faster router  :'(
« Last Edit: November 08, 2013, 05:25:23 PM by SE »
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Darren

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Re: Address Based Filtering Technicolor TG582n FTTC slows down fibre
« Reply #3 on: November 08, 2013, 11:47:32 PM »

Does seem like it's CPU limited, if you can telnet in and run TOP you can monitor the CPU usage while running tests. It does take some processing power to run filters and such like at FTTC speeds, my asus rt-n16 can't run an fttc line at fulll speed with qos enabled and that's meant to be quite beefy.
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SE

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Re: Address Based Filtering Technicolor TG582n FTTC slows down fibre
« Reply #4 on: November 09, 2013, 06:20:21 PM »

Does seem like it's CPU limited, if you can telnet in and run TOP you can monitor the CPU usage while running tests. It does take some processing power to run filters and such like at FTTC speeds, my asus rt-n16 can't run an fttc line at fulll speed with qos enabled and that's meant to be quite beefy.

Hi
I haven't installed the open firmware atm so cant get much info
I was going too, then thought id get a all in one router/modem a some point  :-\

I think the Technicolor TG582n FTTC is a modded ADSL router, so I guess it was never made for that sort of speed
The thing is, wifi is off and I only have one cat6 from it to a switch, then tp the PC's

I guess it would be even slower if wifi was on, unless it has a dedicated chip to do that work
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kitz

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Re: Address Based Filtering Technicolor TG582n FTTC slows down fibre
« Reply #5 on: November 09, 2013, 07:34:29 PM »

Im not so sure its CPU.

Something else is going on.

This is my base test - 72.7Mbps /17.19Mbps
http://www.speedtest.net/my-result/3090197134

Enabled Address based filtering and I got 14.82/0.42 Mbps
http://www.speedtest.net/my-result/3090201269

I download a file and I get a practically rock-steady 7.01Mbps on Netmeter.

hmmmmm
So speedtest.net uses parallel threads  2 x 7Mbps = 14Mbps

To test this theory..  TBB uses 4 threads...  and what I get is 27.28 Mbps with a burst speed of 30Mbps
http://www.thinkbroadband.com/speedtest/results.html?id=138402437698510383121
4x7Mbps = 28Mbps.

So it would appear something is restricting each thread to circa 7Mbps.   Since its not the overall speed affected.. 
Im thinking more like the Ellacoyas?  Perhaps it doesnt recognise the traffic type..  and is restricting it..   but Im supposed to be on unlimited which isnt meant to be shaped??

----
ETA

On 2nd thoughts as I was walking away, it just occurred to me that the Ellacoyas are supposed to be intelligent enough to not allow multi-threading to bypass any restrictions.   Theres definitely some form of traffic shaping going on.  The fact that 7.1Mbps is suspiciously similar to an IPprofile is making me point the finger at either BTs network if not Plusnets.
« Last Edit: November 09, 2013, 07:44:01 PM by kitz »
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SE

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Re: Address Based Filtering Technicolor TG582n FTTC slows down fibre
« Reply #6 on: November 09, 2013, 07:42:50 PM »

Im not so sure its CPU.

Something else is going on.

This is my base test - 72.7Mbps /17.19Mbps
http://www.speedtest.net/my-result/3090197134

Enabled Address based filtering and I got 14.82/0.42 Mbps
http://www.speedtest.net/my-result/3090201269

I download a file and I get a practically rocksteady 7.01Mbps on Netmeter.

hmmmmm

So speedtest.net uses parallel threads  2 x 7Mbps = 14Mbps

To test this theory..  TBB uses 4 threads...  and what I get is 27.28 Mbps with a burst speed of 30Mbps
http://www.thinkbroadband.com/speedtest/results.html?id=138402437698510383121
4x7Mbps = 28Mbps.

So it would appear something is restricting each thread to circa 7Mbps.   Since its not the overall speed affected.. 
Im thinking more like the Ellacoyas?  Perhaps it doesnt recognise the traffic type..  and is restricting it..   but Im supposed to be on unlimited which isnt meant to be shaped??

Hi
That's interesting
I'll test some more  :)

The thing is, I found out about it because of a steam download
my steam downloads at the max speed of 47Mbps, but was only downloading at 20Mbps so that's what made me look in to this
As soon as I set filtering to off, steam was full speed, set in on boom, steam was slow

I tested steam download servers in Manchester and London as it was still the same

Kitz can you try steam see what you get?  ;)
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kitz

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Re: Address Based Filtering Technicolor TG582n FTTC slows down fibre
« Reply #7 on: November 09, 2013, 07:48:16 PM »

btw..  I edited my above post to add something else.

Quote
Kitz can you try steam see what you get?

I dont use steam.. are you able to give me a url which I can test something with?

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SE

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Re: Address Based Filtering Technicolor TG582n FTTC slows down fibre
« Reply #8 on: November 09, 2013, 08:04:42 PM »

btw..  I edited my above post to add something else.

Quote
Kitz can you try steam see what you get?

I dont use steam.. are you able to give me a url which I can test something with?

Do you run a vpc so you down have to install steam on your main pc?

You could try it by installing steam on a vpc, then downloading a free steam game like War Thunder (Aircraft Sim Type Game)

http://store.steampowered.com
http://warthunder.com

I'm going to test P2P with filtering set to on as soon as I have a free moment  :graduate:
Though i'm not sure if steam uses p2p
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kitz

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Re: Address Based Filtering Technicolor TG582n FTTC slows down fibre
« Reply #9 on: November 09, 2013, 08:07:57 PM »

A visualware analysis also gives me 28Mbps, although my upload is 16.7Mbps.

I cant find out how many threads they use.

This is the results of my analysis report

Quote
The download speed is too low for the latency/bandwidth of the connection

This means that download throughput has been recorded lower than the attainable speed for the connection being tested and this degradation is not accounted for by the latency of the connection. This indicates that the connection has data flow interference through congestion or regulation problems.

A high TCP Max Delay and/or a low Data Flow QoS will also confirm any occurrence of data flow quality problems.
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kitz

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Re: Address Based Filtering Technicolor TG582n FTTC slows down fibre
« Reply #10 on: November 09, 2013, 08:10:47 PM »

No sorry dont have a sandbox or vpc installed atm..  and Im outa here soon :/  :drink:


-----------

PS could do with someone on an IPStream connection testing using the TG582n
Zen also use this router.

Is HP still on Be using a Bebox that may also be useful.

« Last Edit: November 09, 2013, 08:13:16 PM by kitz »
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kitz

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Re: Address Based Filtering Technicolor TG582n FTTC slows down fibre
« Reply #11 on: November 09, 2013, 08:19:45 PM »

My graph is also interesting..  looks like there's artificial shaping going on there..  each of the results mentions QoS problems.


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SE

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Re: Address Based Filtering Technicolor TG582n FTTC slows down fibre
« Reply #12 on: November 10, 2013, 05:48:25 PM »

My graph is also interesting..  looks like there's artificial shaping going on there..  each of the results mentions QoS problems.

Hi
Hope you had a good night  :drink:  :angel: :police: lol

I will try a few other download services like origin, p2p, and steam again. see what I get
Do you think it down to the router being in realty a ADSL family speed router?

EDIT:

If I use the usb port as network storage, will this slow the router down at all
« Last Edit: November 10, 2013, 07:15:57 PM by SE »
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kitz

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Re: Address Based Filtering Technicolor TG582n FTTC slows down fibre
« Reply #13 on: November 12, 2013, 06:17:24 PM »

Sorry for the tardy reply, not getting home from Manchester hospital till gone 11oclock last night and a bad nights sleep - read none - meant I wasnt up to much today.  :(

Anyhow getting to the PC this evening and Im having what appear to be DNS problems in that pages wont load for ages, so I looked on the PN forums to see if there was any known issues...   and I happened across this.

Following a link to Release R8.4.3 Section 5, page 50 - Known Issues, we come across this:-

Quote
Services - Parental Control / Web Site Filtering
 Using Parental Control, i.e. URL-based, or content-based filtering, negatively impacts the Technicolor Gateway
download performance.

I fear I may have been a bit distracted with the 7.01Mbps limitation thinking it was possibly a BT IPprofile.  But that does give us a clue....
7.01 Mbps will also be the max TCP/IP throughput for adsl1.


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jelv

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Re: Address Based Filtering Technicolor TG582n FTTC slows down fibre
« Reply #14 on: November 12, 2013, 08:23:48 PM »

Has anyone tested the 10.X firmware to see if the problem still occurs when using that? It doesn't say anything about parental controls in the 10.2.1 release notes.
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