sdsl 878 router line-rate changes on reboot

Answered Question
Jan 22nd, 2008
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Having issues with the line-rate with SDSL router 878. Everytime i reboot the router the line-rate seems to change which casues it to loss internet connectivity. In order to restore internet connectivity you need to manually configure the line-rate. Has anyone had this problem or assist me with resolving this problem

Correct Answer by paolo bevilacqua about 9 years 4 months ago

Hi, according to:

If you upgrade to 12.4(6)T, that would give you 3.05 firmware, chances are it will solve your problem.

Hope this helps, please rate post if it does!

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paolo bevilacqua Tue, 01/22/2008 - 14:28
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please send output of "show dsl interface". You might need a DSL firmware upgrade.

vital-group Fri, 01/25/2008 - 02:25
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Thank for the prompt response. The router does not recognise the sh dsl interface command. However, i have included the results for sh controllers dsl 0:

ital-Brentwood-Data#sh controllers dSL 0

DSL 0 controller UP

SLOT 0: Globespan xDSL controller chipset

Frame mode: Utopia

Configured Line rate: 2048Kbps

Line Mode: Two Wire

DSL mode: SHDSL Annex B

Line Re-activated 0 times after system bootup

LOSW Defect alarm: ACTIVE

CRC per second alarm: ACTIVE

Line termination: CPE

Current 15 min CRC: 0

Current 15 min LOSW Defect: 0

Current 15 min ES: 0

Current 15 min SES: 0

Current 15 min UAS: 341

Previous 15 min CRC: 0

Previous 15 min LOSW Defect: 0

Previous 15 min ES: 0

Previous 15 min SES: 0

Previous 15 min UAS: 0

Line-0 status

Chipset Version: 0

Firmware Version: R3.0.1

Modem Status: Data, Status 1

Last Fail Mode: Failed during Carrier Detect status:0x8

Line rate: 2056 Kbps

Framer Sync Status: In Sync

Rcv Clock Status: In the Range

Loop Attenuation: 13.0 dB

Transmit Power: 14.5 dB

Receiver Gain: 27.420 dB

SNR Sampling: 39.8690 dB

Dying Gasp: Present



Vital-Brentwood-Data#sh ver

Cisco IOS Software, C870 Software (C870-ADVSECURITYK9-M), Version 12.4(4)T8, RELEASE SOFTWARE (fc3)

Technical Support:

Copyright (c) 1986-2007 by Cisco Systems, Inc.

Compiled Sat 11-Aug-07 03:34 by khuie

ROM: System Bootstrap, Version 12.3(8r)YI4, RELEASE SOFTWARE

Vital-Brentwood-Data uptime is 1 week, 17 hours, 53 minutes

System returned to ROM by reload

System image file is "flash:c870-advsecurityk9-mz.124-4.T8.bin"

Last reload reason: Reload Command

This product contains cryptographic features and is subject to United

States and local country laws governing import, export, transfer and

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Importers, exporters, distributors and users are responsible for

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to comply with U.S. and local laws, return this product immediately.

A summary of U.S. laws governing Cisco cryptographic products may be found at:

If you require further assistance please contact us by sending email to

[email protected].

Cisco 878 (MPC8272) processor (revision 0x200) with 118784K/12288K bytes of memory.

Processor board ID FCZ1148628S

MPC8272 CPU Rev: Part Number 0xC, Mask Number 0x10

4 FastEthernet interfaces

1 ISDN Basic Rate interface

1 ATM interface

128K bytes of non-volatile configuration memory.

24576K bytes of processor board System flash (Intel Strataflash)

Configuration register is 0x2102


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