What's going on?

Hi all,

I have a cisco box, and it's showing thus..

Via SNMP/cactus reckons
Actual Linespeed 1192000/14199000 bps
ADSL currently trained at 1204000/22538000 bps
Current Noise Margin 6/19 dB, Current Attenuation 3/10.5 dB

and my provider's guestimation is that I should get a good 20Mbp/s service.
also, from what I've read. those stats are ok, and shouldn't be causing any issues?.
I'm not that far from the exchange, and never had any issues with an ADSL1 service.

ok, looking good.... but...


Alcatel 20190 chipset information
ATU-R (DS) ATU-C (US)
Modem Status: Showtime (DMTDSL_SHOWTIME)
DSL Mode: ITU G.992.5 (ADSL2+) Annex A
ITU STD NUM: 0x03 0x2
Chip Vendor ID: 'STMI' 'BDCM'
Chip Vendor Specific: 0x0000 0x918F
Chip Vendor Country: 0x0F 0xB5
Modem Vendor ID: 'CSCO' ' '
Modem Vendor Specific: 0x0000 0x0000
Modem Vendor Country: 0xB5 0x00
Serial Number Near: FCZ121362M3
Serial Number Far:
Modem VerChip ID: C196 (0)
DFE BOM: DFE3.0 Annex A (1)
Capacity Used: 63% 99%
Noise Margin: 19.0 dB 6.0 dB
Output Power: 18.5 dBm 12.0 dBm
Attenuation: 10.5 dB 3.0 dB
Defect Status: None None
Last Fail Code: None
Watchdog Counter: 0x25
Watchdog Resets: 0
Selftest Result: 0x00
Subfunction: 0x00
Interrupts: 20546 (0 spurious)
PHY Access Err: 0
Activations: 4
LED Status: ON
LED On Time: 100
LED Off Time: 100
Init FW: init_3.0.33_nobist.bin
Operation FW: AMR-3.0.033.bin
FW Source: external
FW Version: 3.0.33

DS Channel1 DS Channel0 US Channel1 US Channel0
Speed (kbps): 0 14199 0 1192
Cells: 0 6728 0 697650
Reed-Solomon EC: 0 0 0 0
CRC Errors: 0 0 0 0
Header Errors: 0 0 0 0
Total BER: 0E-0 0E-0
Leakage Average BER: 0E-0 0E-0
Interleave Delay: 0 56 0 11
ATU-R (DS) ATU-C (US)
Bitswap: enabled enabled
Bitswap success: 0 0
Bitswap failure: 0 0

----------------------------------------------------------------------------------------

What ever I do, I can't get above 14199bps, I'm wondering if I'm capped for some reason because I'm using a cisco box (supposedly industry standard equipment...)

Cisco people, what's your thoughts ?

MisterG

Chip Vendor ID: 'STMI'

There's your problem.

Who's the ISP?

And the problem with Alcatel / Thomson / Infineon is ???

You are trained at 14199kbps, the max attainable rate is 22538kbps according to the routers stats.
From the line stats (downstream attenuation is 3dB) you should be a little bit faster though. If you have a access to the Cisco site there are a couple of later firmwares for the adsl modem which are to fix instability issues, not sure if they will help though.
Your downstream noise margin does seem rather high at 19dB.

I take it you have tried all the usual checks of plugging the router into the NTE test socket ??

Maybe worth trying a router with a Broadcom chipset, even if you have to get a good 2nd hand one via ebay

In reply to a post by Rockh:

And the problem with Alcatel / Thomson / Infineon is ???

Who?

STMI is Alcatel, Thomson

No, it's STMicroelectronics

Good point, yet to fire up my Cisco on my new O2 connection as the O2 II box seems to be working just fine and as they share a similar chipset should be similar however might play with the old Sky DG834 router since that's a broadcom IIRC.

So thats why Cisco use Alcatel chips then .......