General Discussion
  >> Fibre Broadband


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


Pages in this thread: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | (show all)   Print Thread
Standard User Quark999
(learned) Sun 17-Apr-11 15:50:58
Print Post

How to get a Fritz!Box 7390 working as a VDSL modem


[link to this post]
 
I have finally had a chance to try getting my AVM Fritz!Box 7390 working as a VDSL Modem instead of the Openreach modem. It had been working fine as a router, but obviously I wanted to use the built-in modem as well, due to the pretty impressive statistics the box offers.

In short, I was successful! As reported previously, the modem synchronizes fine by default, but the PPPoE connection fails to establish - as willuk2010 helpfully found out, this is generally due to third-party modems not being set to the correct VLAN ID, which is 101 on Openreach. I can also confirm that this seem to be the same VLAN ID across the board, as I am on Aquiss - I was concerned that my VLAN ID might be different, but that does not seem to be the case (unline e.g. in Germany where Vodafone seems to be on a different VLAN than Telekom).

Here are the instructions:
a) Export your Fritz!Box configuration, just in case.
b) Download FBEditor 0.5.2 from http://www.ip-phone-forum.de/showthread.php?t=79513&... - you might have to register. This can be used to edit the configuration files. Theoretically, you can enable telnet access on the Fritz!Box by dialing #96*7* on an attached DECT phone, and then edit the configuration file directly using vi, but FBEditor is probably safer in case you mess up your stanzas.
c) When first opened, FBEditor will ask you for the IP address to your fritz.box and the web password. Once entered and connected, you can use the menu option "Datei" -> "Konfiguration einlesen" or just press CTRL-E to read in the configuration.
d) Find and change the following:
ar7cfg {
...
tcom_targetarch = yes;
vdsl_resalearch = yes;
...
}

dslifaces {
...
pppoevlanauto = yes;
pppoevlanauto_startwithvlan = yes;
...
}

dslglobalconfig {
...
default_tcom_vlan = 101;
...
}
e) Use "Datei" -> "Konfiguration zurückspielen". This uploads the modified configuration to the Fritz!Box, which will then restart.

If you have been using the Openreach modem, it is probably best to remove it from LAN Port one and change the configuration back so that the Fritz!Box tries to use the internal modem. Make sure you connect the Y cable to the NTE instead of having the Openreach modem connected.

Once rebooted, the Fritz!Box will synchronize again, and the PPPoE connection should be established automatically.

My stats (do I see potential for 15 MBit/s upstream in there?)
Send Receive
DSLAM-Data rate Max. kBit/s 40000 9984
DSLAM-Data rate Min. kBit/s 128 128
Capacity kBit/s 41136 16325
Current Data rate kBit/s 39984 9984

Latency 0 ms 0 ms
Carrier swap (Bitswap) on on
Impulse protection 0.0 0.0

SNR dB 7 16
Atennuation dB 7 -
Carriers A43 A43
Profile 17a

Edited by Quark999 (Sun 17-Apr-11 15:51:29)

Standard User colesy10
(learned) Mon 18-Apr-11 07:53:44
Print Post

Re: How to get a Fritz!Box 7390 working as a VDSL modem


[re: Quark999] [link to this post]
 
Thank you Quark!
It'll be interesting to see how you get on with the 7390.
Standard User Quark999
(learned) Mon 18-Apr-11 15:11:54
Print Post

Re: How to get a Fritz!Box 7390 working as a VDSL modem


[re: colesy10] [link to this post]
 
Stable now for about 24 hours, so I'd say it works fine!

Got some juicy statistics via telnet:
Extended Port Status
=================
Bme: 1 Port: 1
Downstream line rate: 43664 kbps
Upstream line rate: 10816 kbps
Bearer0 Downstream payload rate: 0 kbps
Bearer1 Downstream payload rate: 39984 kbps
Bearer0 Upstream payload rate: 0 kbps
Bearer1 Upstream payload rate: 9984 kbps
Downstream attainable payload rate: 41136 kbps
Downstream attainable line rate: 48224 kbps
Downstream Training Margin: 7.7 dB
Downstream Line Protection (Bearer1 Path): 0.0 DMT Symbols
Upstream Line Protection (Bearer1 Path): 0.0 DMT Symbols
Near-end ITU Vendor Id: 0x040041564d004410
Far-end ITU Vendor Id: 0xb5004244434da188
Downstream delay: 0.0 ms
Upstream delay: 0.0 ms
Tx total power -14.1 dbm
FE Tx total power 6.0 dbm
VDSL Estimated Loop Length : 1120 ft
G.Hs Estimated Near End Loop Length : 9787 ft
G.Hs Estimated Far End Loop Length :0 ft
Current framing mode: 0x10 EFM
Bandplan Type...........: 65
No. of Upstream Bands...: 2
No. of Downstream Bands.: 2
Line Type: 0x04000000

The "VDSL Estimated Loop Length" is very interesting, as I had a burnt out cab last year and the engineer told me I was about 330m from the cab. So 1120 feet is a VERY good estimate!

Also interesting is the "Downstream Attainable Line Rate", which doesn't seem to leave much room, but I'm not sure whether that is somehow capped.

The following are numbers I found on the German forums for a German VDSL connection - I wonder whether there's as much headroom in mine. Their training margins are much higher, and the loop lengths are much shorter (sigh):

Extended Port Status
=================
Bme: 1 Port: 1
Downstream line rate: 63920 kbps
Upstream line rate: 13824 kbps
Bearer0 Downstream payload rate: 0 kbps
Bearer1 Downstream payload rate: 51376 kbps
Bearer0 Upstream payload rate: 0 kbps
Bearer1 Upstream payload rate: 10000 kbps
Downstream attainable payload rate: 101360 kbps
Downstream attainable line rate: 127888 kbps
Downstream Training Margin: 24.0 dB
Downstream Line Protection (Bearer1 Path): 1.0 DMT Symbols
Upstream Line Protection (Bearer1 Path): 2.0 DMT Symbols
Near-end ITU Vendor Id: 0x040041564d00440d
Far-end ITU Vendor Id: 0xb5004946544e933b
Downstream delay: 7.5 ms
Upstream delay: 7.8 ms
Tx total power 5.5 dbm
FE Tx total power 12.8 dbm
VDSL Estimated Loop Length : 549 ft
G.Hs Estimated Near End Loop Length : 1404 ft
G.Hs Estimated Far End Loop Length :0 ft
Current framing mode: 0x10 EFM
Bandplan Type...........: 57
No. of Upstream Bands...: 2
No. of Downstream Bands.: 3
Line Type: 0x04000000


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

Standard User colesy10
(learned) Tue 19-Apr-11 07:53:05
Print Post

Re: How to get a Fritz!Box 7390 working as a VDSL modem


[re: Quark999] [link to this post]
 
Thanks Quark,
Did you see any speed improvements by changing to the Fritzbox, or was the BT modem doing well for you?

Edited by colesy10 (Tue 19-Apr-11 13:08:31)

Standard User Quark999
(learned) Tue 19-Apr-11 10:30:43
Print Post

Re: How to get a Fritz!Box 7390 working as a VDSL modem


[re: colesy10] [link to this post]
 
The Openreach Modem didn't give me any trouble and I've been syncing at the max with both it as well as the Fritz!Box from what I can tell, but I had bought the Fritz!Box for its other features anyway, and I really like the idea of having everything in one device, plus the extra statistics.

I did have the occasional dropped sync with the Openreach modem (about once a week), so I'm hoping that my Fritz!Box will keep sync at all times. I will know that for sure in a few week's time, but so far it has been rock-solid.

All in all the Fritz!Box is definitely the best router I have ever had, bar none. There was a slight problem with the WebDAV client due to my English language setting, but that's a feature other boxes don't even have - all the important things work flawlessly. My DECT phone is connected to the Fritz!Box, my BT phone number has been migrated to SIP, I can make free calls from my iPhone using my home phone number using the iOS App, I can VPN in from any hotel's wireless LAN AND call my girlfriend for free using that, all kinds of things that people never even knew were possible.

Very happy.
Standard User colesy10
(learned) Tue 19-Apr-11 14:40:44
Print Post

Re: How to get a Fritz!Box 7390 working as a VDSL modem


[re: Quark999] [link to this post]
 
Thanks again Quark.
You seem to be the man in know, would you know what chipset this modem uses?
It may be like the previous versions of the Ar7/ Texas chip, but I just wondered if you came across it in your searches.
Many thanks
Standard User Quark999
(learned) Tue 19-Apr-11 14:52:15
Print Post

Re: How to get a Fritz!Box 7390 working as a VDSL modem


[re: colesy10] [link to this post]
 
It is using an Ikanos Fusiv Vx180 communications processor according to http://www.ikanos.com/news/press-releases/2010/AVM-S... and the German Wikipedia article on the Fritz!Boxes.

I hope that helps...

Edited by Quark999 (Tue 19-Apr-11 14:52:46)

Standard User colesy10
(learned) Tue 19-Apr-11 15:24:12
Print Post

Re: How to get a Fritz!Box 7390 working as a VDSL modem


[re: Quark999] [link to this post]
 
Brilliant, thank you Quark.!!
Standard User lexden16
(newbie) Tue 19-Apr-11 15:33:30
Print Post

Re: How to get a Fritz!Box 7390 working as a VDSL modem


[re: Quark999] [link to this post]
 
Slightly off topic. I, too, have a FritzBox 7390 and I think that it is a great router. I have had some problems maintaining an ADLS2+ connection when the phone rings. Forums on Whirlpool.au suggested using a second ADSL filter. This seems to have done the trick. My only issue with the router is simply that I cannot find an 'idiot's guide' for the router anywhere on the Web. For example, what is the relationship between a high DSL exchange CRC error rate and 'irrecoverable DSL errors' in the router log? After 3 days of holding a stable ADSL 11955/1083 synch with 12 CRC errors/per15 min (DSL EXchange) , my router re-synched overnight at 11827/888 and the CRC errors have totally disappeared. My LA/SNR are DS 15/14 and US 10/9. The router is showing a DS power reduction of 1db (whatever this means: it suggests that I have a very good connection but the stats suggest otherwise). The online help is very limited in scope (or, alternatively, it believes the user knows more than I do about ADSL).
Standard User Quark999
(learned) Tue 19-Apr-11 15:40:05
Print Post

Re: How to get a Fritz!Box 7390 working as a VDSL modem


[re: lexden16] [link to this post]
 
I think it's a bit unfair to expect the router to interpret these numbers for you, it's precisely the reason why most entry-level routers hide these values from you to begin with - if you don't know about them, you can't ask about an interpretation of them.

Those are similar numbers and statistics available from most "open" routers, so what you need is an "idiot's guide" to ADSL and not this router in particular. Unfortunately, I don't know of any, but maybe other people on here can help. I know that a "certain" amount of errors (and I believe even of "irrecoverable" errors) is normal, and the definition of what a "certain" amount is has never been established.

Sounds to me like a problem with your wiring and/or the ring wire. That obviously reflects in the stats one way or another, but they will never be able to tell you the *exact* problem...
Pages in this thread: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | (show all)   Print Thread

Jump to