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Beginner

CO & CPE SHDSL Connection Flapping every few Minutes

Hi all,

I have two Cisco 888-K9 setup on a 4 wire private line about 2-3 km apart one configurated as CO and the other as a CPE. During config and testing the SHDSL connection was completely stable although this was only over about 300m of CAT5e. Now the devices are installed the in field I'm finding the connection constantly comes up and down every minute or so which leads me to suspect noise or line quaility is the issue. Can anyone advise how to debug this and tweak the setting to improve stability? Config from the CO & CPE attched along with DSL controller output from active and non active connection on the CO.

Cheers

Louise

2 REPLIES 2
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Beginner

I've been looking any numerous posts on the web and I believe my SHDSL db levels should be ok, can anyone review and advise? These are the reading from my CO router.

Line-0 status

Chipset Version:  0

Firmware Version:  R4.3.1

Modem Status:  Data, Status 1

Last Fail Mode:  No Failure status:0x0

Line rate:  2312 Kbps

Framer Sync Status: In Sync

Rcv Clock Status: In the Range

Loop Attenuation:  27.4 dB

Transmit Power:  14.5 dB

Receiver Gain:  44.2840 dB

SNR Sampling:  23.4860 dB

Receive HEC Error Count:  0

Line-1 status

Chipset Version:  0

Firmware Version:  R4.3.1

Modem Status:  Data, Status 1

Last Fail Mode:  No Failure status:0x0

Line rate:  2312 Kbps

Framer Sync Status: In Sync

Rcv Clock Status: In the Range

Loop Attenuation:  27.8 dB

Transmit Power:  14.5 dB

Receiver Gain:  45.840 dB

SNR Sampling:  21.6790 dB

Receive HEC Error Count:  0

Dying Gasp: Present

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Just to let anyone know who is interested I resolved my issue by lowering the line rate to 2048

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