Cisco 837 - show dsl interface atm 0

[scrimmy]

Hi Guys,

I'm looking into an intermittant dsl connectivity issue at a remote site.
The site router is a Cisco 837
f/w version c837-k9o3y6-mz.122-8.YN

When i issue the command show dsl interface atm 0
What noise margin levels are acceptable for a stable connection

Thanks in advance....


output from show dsl interface atm 0
ATU-R (DS) ATU-C (US)
Modem Status: Showtime (DMTDSL_SHOWTIME)
DSL Mode: ITU G.992.1 (G.DMT)
ITU STD NUM: 0x01 0x01
Vendor ID: 'ALCB' 'P '
Vendor Specific: 0x0000 0x0000
Vendor Country: 0x00 0xB5
Capacity Used: 9% 36%
Noise Margin: 38.0 dB 26.0 dB
Output Power: 20.0 dBm 11.5 dBm
Attenuation: 41.0 dB 23.5 dB
Defect Status: None None
Last Fail Code: None
Selftest Result: 0x00
Subfunction: 0x15
Interrupts: 643 (1 spurious)
Activations: 1
Init FW: embedded
Operartion FW: embedded
SW Version: 3.919
FW Version: 0x1A04

Interleave Fast Interleave Fast
Speed (kbps): 0 576 0 256
Reed-Solomon EC: 0 0 0 0
CRC Errors: 0 0 0 64
Header Errors: 0 0 0 19
Bit Errors: 0 0
BER Valid sec: 0 0
BER Invalid sec: 0 0

LOM Monitoring : Disabled

DMT Bits Per Bin
00: 0 0 0 0 0 0 0 0 0 2 3 5 5 5 5 5
10: 5 5 5 6 5 5 5 4 4 4 3 2 2 2 0 0
20: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
30: 0 2 2 2 2 2 2 2 2 2 2 2 0 2 2 2
40: 0 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2
50: 2 2 2 2 2 2 2 3 3 3 3 3 3 2 3 3
60: 3 2 3 3 2 3 3 3 3 3 3 3 2 0 2 2
70: 2 2 2 2 2 2 0 2 0 2 2 2 2 2 2 0
80: 2 2 2 2 2 2 2 2 2 0 0 2 2 2 2 2
90: 2 2 0 2 0 2 0 0 0 0 0 0 0 0 0 0
A0: 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0
B0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
C0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
D0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
E0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
F0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

Training log buffer capability is not enabled yet.

 

[burtsbees]

Edge>sh dsl int
ATM0/0
Alcatel 20150 chipset information
ATU-R (DS) ATU-C (US)
Modem Status: Showtime (DMTDSL_SHOWTIME)
DSL Mode: ANSI T1.413
ANSI Issue/rev: 2/1 2/1
Vendor ID: 0x0022 0x0022
Capacity Used: 97% 97%
Noise Margin: 5.5 dB 6.0 dB
Output Power: 16.5 dBm 12.0 dBm
Attenuation: 23.5 dB 31.5 dB
Defect Status: None None
Last Fail Code: Error in early non-CRC message or in first CRC-covered message
Selftest Result: 0x00
Subfunction: 0x15
Interrupts: 2746 (0 spurious)
PHY Access Err: 0
Activations: 13
LED Status: ON
LED On Time: 100
LED Off Time: 100
Init FW: embedded
Operation FW: embedded
SW Version: 3.8131
FW Version: 0x1A04

Interleave Fast Interleave Fast
Speed (kbps): 0 6016 0 608
Cells: 0 133016 0 57274080
Reed-Solomon EC: 0 0 0 0
CRC Errors: 0 107 0 1943
Header Errors: 0 85 1 494
Bit Errors: 0 88
BER Valid sec: 0 40422
BER Invalid sec: 0 103

LOM Monitoring : Disabled

DMT Bits Per Bin
00: 0 0 0 0 0 0 0 4 6 7 8 9 9 9 9 9
10: 8 8 8 8 8 8 8 8 7 7 7 7 7 7 0 0
20: 0 0 0 0 0 0 4 4 5 6 7 7 8 9 9 A
30: A B B C C C D D D D D D D D D D
40: C D D D D D D D D D D D D D D D
50: D D D D D D D D D D D D D D D 2
60: D D D C C C C C C C C C C C C C
70: C C C C C C C C C C C C B B B 9
80: 9 B B C C C C C C C C C C C C C
90: C C 8 C C C B B C B B B B B C B
A0: B B B B B B B B B B B B B C B 0
B0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
C0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
D0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
E0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
F0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

DSL: Training log buffer capability is not enabled

That seems high. Your attenuation seems high also. I assume you're far from the CO?

/

tim@tim-laptop ~ $ sudo apt-get install windows
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Couldn't find package windows...Thank Goodness!

 

[scrimmy]

Thanks Burtsbees,

The remote site is a fair way from the local exchange and has always had problematic connectivity.

 

[burtsbees]

That sounds like the problem to me...

/

tim@tim-laptop ~ $ sudo apt-get install windows
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Couldn't find package windows...Thank Goodness!