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Standard User theblarney
(newbie) Sun 31-Jan-10 22:18:56
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BT Business Broadband ADSL2+ and Cisco 877


[link to this post]
 
Hi,

I wondered if anyone can help.

I have been using BT Broadband for sometime now and from the very start I have suffered from an issue where I will loose connection for around 15 seconds, this could happen many times a day.

Looking at the Cisco logs, I see the following:
001186: Jan 31 18:31:32.812: %LINK-3-UPDOWN: Interface ATM0, changed state to down
001187: Jan 31 18:31:33.812: %LINEPROTO-5-UPDOWN: Line protocol on Interface ATM0, changed state to down
001188: Jan 31 18:31:46.988: %LINK-3-UPDOWN: Interface ATM0, changed state to up
001189: Jan 31 18:31:47.988: %LINEPROTO-5-UPDOWN: Line protocol on Interface ATM0, changed state to up

I have swapped the router, cable, filter etc no avail.

BT Wholesale have been looking at it and have done a "lift and shift", checked and replaced cabling. The engineers that have been say that interleaving should be switched off, other say it needed to be on so im not sure on that one.

My whole company uses Cisco 877's and BT Business Broadband all on the same code and they dont have an issue.

Looking at the config of one of the other routers the DSL operating mode is set to ADSL2+ where mine is set to itu-dmt. I tried setting my router to ADSL2+ but the connection doesn't stay up for more than a minute.

Any help would be appreciated.

Thanks

Gavin
Standard User xilonet
(experienced) Sun 31-Jan-10 22:57:40
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Re: BT Business Broadband ADSL2+ and Cisco 877


[re: theblarney] [link to this post]
 
Could simply be the line dropping due to noise.

Can you post your stats using the sh command?

Matt

-
xilodsl.net
t: 0800 848 8468
Official Maidenhead & Milton Keynes Speedtest.net Host
CPW LLU Pre-registration | Our current offers
Standard User nredwood
(knowledge is power) Sun 31-Jan-10 23:19:37
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Re: BT Business Broadband ADSL2+ and Cisco 877


[re: theblarney] [link to this post]
 
Seen similar issues with Cisco 877's not taking to certain DSLAM chipsets. The lines were with Zen they said they'd seen some issues with certain makes of DSLAM's and Cisco kit, but no more details than tat.

Do you know what the remote chipset make is? You may have to connect another router to find out

Be* Unlimited


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Standard User theblarney
(newbie) Mon 01-Feb-10 09:26:28
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Re: BT Business Broadband ADSL2+ and Cisco 877


[re: xilonet] [link to this post]
 
Hi Matt,

Apologies for the long post but here goes:
ATM0
Alcatel 20190 chipset information
ATU-R (DS) ATU-C (US)
Modem Status: Showtime (DMTDSL_SHOWTIME)
DSL Mode: ITU G.992.1 (G.DMT) Annex A
ITU STD NUM: 0x01 0x1
Vendor ID: 'STMI' 'TSTC'
Vendor Specific: 0x0000 0x0500
Vendor Country: 0x0F 0xB5
Chip ID: C196 (0)
DFE BOM: DFE3.0 Annex A (1)
Capacity Used: 83% 100%
Noise Margin: 10.5 dB 6.0 dB
Output Power: 18.5 dBm 12.5 dBm
Attenuation: 41.0 dB 24.0 dB
FEC ES Errors: 0 0
ES Errors: 11982 75
SES Errors: 0 0
LOSES Errors: 0 0
UES Errors: 0 0
Defect Status: None None
Last Fail Code: None
Watchdog Counter: 0xC1
Watchdog Resets: 0
Selftest Result: 0x00
Subfunction: 0x00
Interrupts: 41642 (0 spurious)
PHY Access Err: 0
Activations: 65
LED Status: ON
LED On Time: 100
LED Off Time: 100
Init FW: init_AMR-3.0.014_no_bist.bin
Operation FW: AMR-3.0.014.bin
FW Source: embedded
FW Version: 3.0.14
Standard User theblarney
(newbie) Mon 01-Feb-10 09:32:46
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Re: BT Business Broadband ADSL2+ and Cisco 877


[re: nredwood] [link to this post]
 
Hi,

I dont unfortunately and I no longer have another router to try. I will try and find out and post back.

Gavin
Administrator MrSaffron
(staff) Mon 01-Feb-10 10:01:02
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Re: BT Business Broadband ADSL2+ and Cisco 877


[re: theblarney] [link to this post]
 
Also need the downstream and upstream figures that go along with that data to make any real sense of it.

If activations means resyncs, then 65 suggests a noise issue.

Have you looked at the wiring in the premises? i.e. tested line from the master test socket? Got all phones/faxes/other devices filtered?

A handful of PoS kit which use phone lines can cause problems with broadband.

Also trying different versions of firmware can make a difference to both sync speed and other stability issues.

Andrew Ferguson, [email protected]
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 xilonet
(experienced) Mon 01-Feb-10 10:41:12
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Re: BT Business Broadband ADSL2+ and Cisco 877


[re: theblarney] [link to this post]
 
In reply to a post by theblarney:
Vendor ID: 'STMI' 'TSTC'


That could be the problem. The STMI chipset in your Cisco, isn't great. I'd really suggest benchmarking the line against something with a Broadcom chipset - even something as basic as a Speedtouch 536, just to see if that is any better.

Matt

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xilodsl.net
t: 0800 848 8468
Official Maidenhead & Milton Keynes Speedtest.net Host
CPW LLU Pre-registration | Our current offers
Standard User theblarney
(newbie) Mon 01-Feb-10 16:37:53
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Re: BT Business Broadband ADSL2+ and Cisco 877


[re: MrSaffron] [link to this post]
 
Hi Mr Saffron,

The wiring in the premises is fine, my router is plugged into the master socket and has been checked by one of the engineers, I have even had a new cable from my house to the exchange (apparently).

As for the other devices, there is nothing else connected to the phone line.

Interleave Fast Interleave Fast
Speed (kbps): 6656 0 1056 0
Cells: 1131466 0 106951763 0
Reed-Solomon EC: 636 0 0 0
CRC Errors: 426 0 1 0
Header Errors: 362 0 4 1
Total BER: 6578E-10 0E-0
Leakage Average BER: 1123E-9 0E-0
ATU-R (DS) ATU-C (US)
Bitswap: enabled enabled
Bitswap success: 0 0
Bitswap failure: 0 0

Thanks

Gavin
Standard User theblarney
(newbie) Mon 01-Feb-10 22:08:49
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Re: BT Business Broadband ADSL2+ and Cisco 877


[re: theblarney] [link to this post]
 
I received a call from a very helpful chap at BT Wholesale who said that he was going to be the sole owner of the fault from within BT.

I mentioned again the ADSL2+ \ ITU.DMT configuration and the first thing he mentioned was a Cisco microcode update that were for a number of Cisco router models.

I have uploaded it to the router this afternoon and so have been able to change the router to ADSL2+ operating mode and so far so good the connection has been stable.

I will post back in a day or so my findings.
Administrator MrSaffron
(staff) Tue 02-Feb-10 09:52:04
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Re: BT Business Broadband ADSL2+ and Cisco 877


[re: xilonet] [link to this post]
 
Agreed, an option if you find a router that handles the line better is to then use it as a pure modem, and use an appropriate cisco router to handle the security/routing

Andrew Ferguson, [email protected]
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 theblarney
(newbie) Tue 02-Feb-10 10:15:50
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Re: BT Business Broadband ADSL2+ and Cisco 877


[re: theblarney] [link to this post]
 
Hi,

I did mention that I would post back.

Unfortunately I did reset again last night and again this morning but this time there is a bit more information in the logs.

000247: Feb 2 08:55:06.715: %LINK-3-UPDOWN: Interface ATM0, changed state to down
000248: Feb 2 08:55:07.715: %LINEPROTO-5-UPDOWN: Line protocol on Interface ATM0, changed state to down
000249: Feb 2 08:55:50.531: %DIALER-6-UNBIND: Interface Vi1 unbound from profile Di0
000250: Feb 2 08:55:50.535: %LINK-3-UPDOWN: Interface Virtual-Access1, changed state to down
000251: Feb 2 08:55:51.531: %LINEPROTO-5-UPDOWN: Line protocol on Interface Virtual-Access1, changed state to down
000252: Feb 2 08:55:52.942: %LINK-3-UPDOWN: Interface ATM0, changed state to up
000253: Feb 2 08:55:53.942: %LINEPROTO-5-UPDOWN: Line protocol on Interface ATM0, changed state to up
000254: Feb 2 08:56:12.909: %DIALER-6-BIND: Interface Vi1 bound to profile Di0
000255: Feb 2 08:56:12.913: %LINK-3-UPDOWN: Interface Virtual-Access1, changed state to up
000256: Feb 2 08:56:14.496: %LINEPROTO-5-UPDOWN: Line protocol on Interface Virtual-Access1, changed state to up

Before it just logged that the ATM0 interface went down and came back up again.

I did think about using the Draytek Vigor 120 as a modem but that would mean swapping out my 877W for a 881W which is more expensive.

BT are also talking about downgrading my circuit to 8mb rather than 20mb.
Standard User JonRennie
(knowledge is power) Tue 02-Feb-10 14:09:53
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Re: BT Business Broadband ADSL2+ and Cisco 877


[re: theblarney] [link to this post]
 
Try updating your ADSL firmware (not the whole IOS) :

ftp://ftp.cisco.com/pub/access/800/

wink Comms is hard wink
Standard User Samadeus
(newbie) Tue 02-Feb-10 18:25:03
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Re: BT Business Broadband ADSL2+ and Cisco 877


[re: JonRennie] [link to this post]
 
There is a firmware release (22nd Oct) which resolves an intermittency problem on BT's 21CN network.
Standard User theblarney
(newbie) Tue 02-Feb-10 22:52:00
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Re: BT Business Broadband ADSL2+ and Cisco 877


[re: Samadeus] [link to this post]
 
I have loaded a microcode onto the router 4.0.0.18 i think which has enabled me to set ADSL2+ as the operating mode but i am still getting the drop.

The code was suggested by BT and was specific to my router.
Standard User dv8
(newbie) Wed 03-Feb-10 23:46:44
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Re: BT Business Broadband ADSL2+ and Cisco 877


[re: theblarney] [link to this post]
 
I am going mad for about 12 days. We moved to new offices that are on 21CN with BT. My Cisco 877 router is up and down like a yo-yo. They have lifted the line had 3 engineers out, swapped cables etc, but to no joy.

I desperatley need to get hold of the new 4.0.0.18 microcode. I have tried the ftp link in the forum but have had no luck. Can anyone email it to me or tell me how to get it. I am desperate to get a stable line. I have 40 people bugging me all day and its costing my business loads.

Also can you post some instructions and commands to load it as I am not to sure how to do it.

Please HELP!!!!!!!!!!!!
Standard User theblarney
(newbie) Thu 04-Feb-10 15:27:57
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Re: BT Business Broadband ADSL2+ and Cisco 877


[re: dv8] [link to this post]
 
Send me a private message with your company email address and ill send you the details.
Standard User jimwillsher
(fountain of knowledge) Wed 17-Mar-10 12:46:02
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Re: BT Business Broadband ADSL2+ and Cisco 877


[re: theblarney] [link to this post]
 
Sorry to trawl up an old thread, but I'm hitting exactly the same. Can the people who posted here confirm if 4.0.018 seems to fix it for them? I've installed that version this morning and (touch wood) it does look a bit better.

Many thanks,


Jim

My line (not necessarily the line referred to in this post, if any):
ADSL24 (832 / 8128)
Edinburgh IPSC
Cisco 877 Router
Eclipse > Ace > ADSL24
Standard User theblarney
(newbie) Wed 17-Mar-10 15:23:31
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Re: BT Business Broadband ADSL2+ and Cisco 877


[re: jimwillsher] [link to this post]
 
Hi Jim,

It has seemed to work for me yes.

Thanks

Gavin
Standard User jimwillsher
(fountain of knowledge) Wed 17-Mar-10 15:37:40
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Re: BT Business Broadband ADSL2+ and Cisco 877


[re: theblarney] [link to this post]
 
Many thanks for confirming.

When I originally installed the new firmware it didn't seem to make any difference.

But I then added dsl operating-mode adsl2+ and it now seems fine - even though sh int dsl atm0 showed that it was running in adsl2+ mode. Perhaps this command is critical, rather than relying on auto-detect.


Jim

My line (not necessarily the line referred to in this post, if any):
ADSL24 (832 / 8128)
Edinburgh IPSC
Cisco 877 Router
Eclipse > Ace > ADSL24
Standard User zedbong
(learned) Sat 20-Mar-10 19:32:25
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Re: BT Business Broadband ADSL2+ and Cisco 877


[re: jimwillsher] [link to this post]
 
I have had no end of problems with Cisco 877 on BT ADSL2+

I eventually got hold of the latest firmware, but it didn't make much difference.

Not only was the connection up and down like the proverbial bride's night dress, but so was the SNR, varying between 15db to 0db wildly over the space of a few seconds.

I bought a 25 quid Zyxel to see if it made any difference and it was rock solid from day one. I then got a Vigor 2820 and that has been even better, consistently syncing a whole 1meg higher than the Zyxel, which was in turn 1 to 2 meg better than the Cisco.

I like Cisco routers a lot. They're very flexible and powerful and solid, but the ADSL side, at least on the 877, appears to be rather poor at the moment. Whether they will get to the bottom of it and bring out another modem firmware that fixes it remains to be seen.

Mind you, the model of modem in the 877 I have is apparently incapable of running in Annex M mode so I would have to have changed sooner or later anyway.

Finally, a mate of mine has an 877 on a Be line which we've sat and watched do pretty much the same thing (again with both old 3.x and 4.0.0.18 firmware). I've arranged to lend him the Zyxel to see if it improves matters.

To monitor SNR without any SNMP tools incidentally, issue the command :
sh ds in at 0 (ie. show dsl interface atm 0)

You can refresh it by pressing up arrow twice then return in quick succession repeatedly...
Standard User Rockh
(eat-sleep-adslguide) Sun 21-Mar-10 18:53:25
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Re: BT Business Broadband ADSL2+ and Cisco 877


[re: zedbong] [link to this post]
 
My 1801 is rubbish on O2 which is the same as Be. It worked fine when I had Sky, though it did have it's moments.
Hopefully Cisco will get their finger out and sort the problem.

Dave
Standard User BWheetley
(newbie) Thu 02-Sep-10 15:03:07
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Re: BT Business Broadband ADSL2+ and Cisco 877


[re: Rockh] [link to this post]
 
Where do I find firmware 4.0.0.18? I don't have a Cisco account and I've had a 887 for a few months and it's doing the same thing as described here.
Standard User Rockh
(eat-sleep-adslguide) Thu 02-Sep-10 18:50:45
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Re: BT Business Broadband ADSL2+ and Cisco 877


[re: BWheetley] [link to this post]
 
You need a support contract to get firmware etc.

Dave
Standard User BWheetley
(newbie) Thu 02-Sep-10 19:33:48
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Re: BT Business Broadband ADSL2+ and Cisco 877


[re: Rockh] [link to this post]
 
Dang... That's kind of what I thought. Cisco shipped my router with an IOS that didn't even support the integrated ADSL card. I had to argue with them just to give me an IOS that worked with router and integrated equipment. Cisco has really disappointed me on this one. Thanks for that information though.
Standard User ionic
(experienced) Fri 03-Sep-10 08:07:12
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Re: BT Business Broadband ADSL2+ and Cisco 877


[re: BWheetley] [link to this post]
 
We've been having trouble with an 877 on a realtively long line on an ADSL2-enabled (21CN) exchange.
It works fine on other connections, just not this one!

Cisco, via our support provider, haven't been very helpful - they're not geared up to the "try this firmware to see if it fixes it" approach instewad expecting you to be able to get DSLAM and line card info to them so they can work to specifics. Getting that info from an ISP seems to be nigh on impossible (as they have to go back to BT for it)

IMO Cisco have really dropped the ball on this one - their kit just isn't as reliable on the ADSL side as equipment costing 1/10 the price and their support structure (for which you pay a significan amount) jsut can't handle mass-market "consumer-grade" services where you don't have easy access to the teclo's techincal team.

I'm glad I ony have the one 877 and have comissioned other sites with cisco kit for the LAN edge, but using cheap "consumer-grade" routers for the ADSL connection.
Standard User Hypernovae
(newbie) Mon 18-Oct-10 14:47:19
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Re: BT Business Broadband ADSL2+ and Cisco 877


[re: ionic] [link to this post]
 
I know this is an old post, but just thought I'd mention to all Cisco 877 owners that Cisco have pulled the v4.0.18 ADSL Firmware, and released a v4.0.195 update which vastly improves the 21CN compatibility.

We've been running this on several customer routers for a month or so now and we've found it to be rock solid. As I understand it the firmware also provides Annex M support (if you need it). The only downisde is that you'll need a Cisco Support Contract to obtain it (although I'm happy to send anyone a copy that needs it).
Standard User geremia
(newbie) Thu 04-Nov-10 18:54:40
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Re: BT Business Broadband ADSL2+ and Cisco 877


[re: Hypernovae] [link to this post]
 
Can someone send me the 4.0.195 alcatel fw?
would be much appreciated
Standard User ionic
(experienced) Fri 05-Nov-10 09:40:40
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Re: BT Business Broadband ADSL2+ and Cisco 877


[re: Hypernovae] [link to this post]
 
Sadly 4.0.195 didn't work for us.
It's a long line and the 877 just couldn't sync on ADSL2 whereas a zyxel managed fine.
Standard User tlrichiec
(newbie) Wed 08-Dec-10 17:25:53
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Re: BT Business Broadband ADSL2+ and Cisco 877


[re: ionic] [link to this post]
 
Hi

Does anyone know why the interface firmware 4.0.18 and 4.0.195 are not available on the cisco website for download. Or does anyone know where I can find it?

Thanks,
Richard
Standard User Spud2003
(fountain of knowledge) Wed 12-Jan-11 19:51:25
Print Post

Re: BT Business Broadband ADSL2+ and Cisco 877


[re: geremia] [link to this post]
 
In reply to a post by geremia:
Can someone send me the 4.0.195 alcatel fw?
would be much appreciated


I'd also like to locate a copy of this firmware if possible. TIA. smile
Standard User giro83
(newbie) Mon 31-Jan-11 14:56:29
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Re: BT Business Broadband ADSL2+ and Cisco 877


[re: Spud2003] [link to this post]
 
I'd like the 4.0.195 firmware too...
Standard User Rockh
(eat-sleep-adslguide) Mon 07-Feb-11 09:38:59
Print Post

Re: BT Business Broadband ADSL2+ and Cisco 877


[re: tlrichiec] [link to this post]
 
The modem firmware is now only available as an IOS download. SmartNet contracts are not expensive, if you can afford the router, pay for the updates.

Dave
Standard User tafy
(newbie) Mon 19-Sep-11 23:06:00
Print Post

Re: BT Business Broadband ADSL2+ and Cisco 877


[re: Rockh] [link to this post]
 
In reply to a post by Rockh:
The modem firmware is now only available as an IOS download. SmartNet contracts are not expensive, if you can afford the router, pay for the updates.


Here is the latest and greatest firmware available atm, experimental atm but working great for me

http://downloads.netmetix.net/Cisco/Firmware/adsl_al...
Standard User aquilla
(knowledge is power) Tue 20-Sep-11 11:30:04
Print Post

Re: BT Business Broadband ADSL2+ and Cisco 877


[re: tafy] [link to this post]
 
In reply to a post by tafy:
In reply to a post by Rockh:
The modem firmware is now only available as an IOS download. SmartNet contracts are not expensive, if you can afford the router, pay for the updates.


Here is the latest and greatest firmware available atm, experimental atm but working great for me

http://downloads.netmetix.net/Cisco/Firmware/adsl_al...

Hi tafy,

Where did you get this firmware from and is there any supporting documentation to confirm what devices it supports?

I'll give it a whirl on my 877 later.

Thanks,

Regards,

Stuart

Current ISP: Xilo LLU (via Cable & Wireless)
Previous ISP: Zen (for 9 years).
Standard User aquilla
(knowledge is power) Tue 20-Sep-11 15:04:29
Print Post

Re: BT Business Broadband ADSL2+ and Cisco 877


[re: aquilla] [link to this post]
 
Installed on my 877W and will monitor.

Regards,

Stuart

Current ISP: Xilo LLU (via Cable & Wireless)
Previous ISP: Zen (for 9 years).
Standard User nickbeee
(newbie) Thu 22-Sep-11 20:25:36
Print Post

Re: BT Business Broadband ADSL2+ and Cisco 877


[re: aquilla] [link to this post]
 
Very useful thread. I've seen the same issues in several forums including Cisco support.

I have five of these 877s on Zen VPN8000 connections with long lines on various BT exchanges. Two in particular with long lines are giving me similar problems with line drops. I deduced via Samknows that one exchange is 21CN and despite being upgraded to "20MB max" I can't get it to connect in ADSL2+. The ADSL firmware is 3.0.??, even on a replacement that I purchased a couple of weeks ago.

I'm now in the process of sourcing ADSL firmware and IOS updates via the Smartnet route so it will be interesting to see if it solves this particular issue. I've also ordered a consumer-grade Netgear DG834 (which from home experience works very well with ADSL2+) which will prove a point if it is more stable than my current Cisco firmware!
Standard User epyon
(member) Thu 22-Sep-11 21:06:51
Print Post

Re: BT Business Broadband ADSL2+ and Cisco 877


[re: nickbeee] [link to this post]
 
Depends on the version of the DG384

v3 works well with BT lines (plusnet,zen ect)
v4 for LLU lines (BE/o2 ect) but also does an alright job for BT lines
v5 is meh for most connections.

BE*Unlimited 18317/1429Kbps
My Broadband Speed Test
Standard User aquilla
(knowledge is power) Thu 22-Sep-11 23:41:53
Print Post

Re: BT Business Broadband ADSL2+ and Cisco 877


[re: nickbeee] [link to this post]
 
Hi,

I ran the firmware listed in the link on my 877 for a day and I'm afraid to say it doesn't solve the ADSL2+ problem for me. Initially the connection is good and it remains good for several hours then the ATM interface starts recording tons of CRC errors, browsing becomes like treacle and we start seeing packet loss.

The SNR doesn't drop (as previously seen in other versions of the firmware) however the connection is unusable after several hours.

I have now gone back to using a Netgear DG834 for the line sync and getting the Cisco to do PPPoE.

Regards,

Stuart

Current ISP: Xilo LLU (via Cable & Wireless)
Previous ISP: Zen (for 9 years).
Standard User aquilla
(knowledge is power) Fri 02-Dec-11 21:13:08
Print Post

Re: BT Business Broadband ADSL2+ and Cisco 877


[re: aquilla] [link to this post]
 
All,

On the 29th Nov, Cisco released a new version of the ADSL firmware for the ST Micro chipset based routers (e.g. 877).

adsl_alc_20190_0.0.026.bin
Release Date: 29/NOV/2011
ADSL firmware version 0.0.026 for ST Micro 20190 chipsets, Modular HWIC's and Fixed Platforms.
Size: 978.50 KB (1001980 bytes)

Release Notes: http://www.cisco.com/web/software/282821763/56781/RL...

Regards,

Stuart

Current ISP: Xilo LLU (via Cable & Wireless)
Previous ISP: Zen (for 9 years).
Standard User praethon
(newbie) Mon 05-Dec-11 13:21:23
Print Post

Re: BT Business Broadband ADSL2+ and Cisco 877


[re: aquilla] [link to this post]
 
Has anybody got a copy of this latest firmware version yet that they can share with forum members?

Edited by praethon (Mon 05-Dec-11 14:48:32)

Standard User RobertoS
(sensei) Tue 06-Dec-11 21:05:49
Print Post

Re: BT Business Broadband ADSL2+ and Cisco 877


[re: praethon] [link to this post]
 
Is it findable here?

My broadband basic info/help site - www.robertos.me.uk
My domains,website and mail hosting - Tsohost. Internet connection - IDNet Home Starter Fibre. Live BQM.

"Where talent is a dwarf, self-esteem is a giant." - Jean-Antoine Petit-Senn.
Standard User praethon
(newbie) Tue 06-Dec-11 21:14:30
Print Post

Re: BT Business Broadband ADSL2+ and Cisco 877


[re: RobertoS] [link to this post]
 
Yes it is available there to download but only if you have a service contract. It would appear that being registered with Cisco is no longer sufficient. Not sure if this is a recent thing or has always been the way for the latest releases. As I don't have a service contract I am unable to download version 0.0.026
Standard User RobertoS
(sensei) Tue 06-Dec-11 21:18:45
Print Post

Re: BT Business Broadband ADSL2+ and Cisco 877


[re: praethon] [link to this post]
 
Ah frown!

That sucks.

"Our product is buggy, but if you want yours fixed you gotta pay us".

My broadband basic info/help site - www.robertos.me.uk
My domains,website and mail hosting - Tsohost. Internet connection - IDNet Home Starter Fibre. Live BQM.

"Where talent is a dwarf, self-esteem is a giant." - Jean-Antoine Petit-Senn.
Standard User nickbeee
(newbie) Wed 25-Jan-12 20:02:51
Print Post

Re: BT Business Broadband ADSL2+ and Cisco 877


[re: nickbeee] [link to this post]
 
In reply to a post by nickbeee:
I have five of these 877s on Zen VPN8000 connections with long lines on various BT exchanges. Two in particular with long lines are giving me similar problems with line drops. I deduced via Samknows that one exchange is 21CN and despite being upgraded to "20MB max" I can't get it to connect in ADSL2+. The ADSL firmware is 3.0.??, even on a replacement that I purchased a couple of weeks ago.

I'm now in the process of sourcing ADSL firmware and IOS updates via the Smartnet route so it will be interesting to see if it solves this particular issue. I've also ordered a consumer-grade Netgear DG834 (which from home experience works very well with ADSL2+) which will prove a point if it is more stable than my current Cisco firmware!


Update on this - I tried a Netgear DG834V4 on the 21CN line after having it set back to ADSL max It ran stable for a couple of weeks. I then replaced the 877 with another flashed with adsl_alc_20190_4.0.017.bin and c870-advsecurityk9mz.124-15.T16.bin - no further problems to date.

Repeated on the 20CN line - it ran OK until we had a few days of windy weather then it went very intermittent. One one occasion when the link was down I picked up the associated phone and as soon as I got dial tone the ADSL sprang back into life (line current bridging a dodgy joint?). Despite several fault reports and BT visits they have not found a problem with the line so BT (via Zen) suggested I try the latest adsl_alc_20190_0.0.026.bin (strange out of sequence numbering!). If the problem continues after this firmware change then they have said they will investigate further...
Standard User praethon
(newbie) Sun 15-Jul-12 11:50:41
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Re: BT Business Broadband ADSL2+ and Cisco 877


[re: nickbeee] [link to this post]
 
If anybody still needs a copy of the latest firmware (adsl_alc_20190_0.0.026.bin ) for use with ST Microelectronics chipsets send me a PM. I now have a copy.

Stuart

Edited by praethon (Sun 15-Jul-12 11:51:47)

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