×

Warning message

  • Cisco Support Forums is in Read Only mode while the site is being migrated.
  • Cisco Support Forums is in Read Only mode while the site is being migrated.

ADSL2 Speed Issues

Unanswered Question
Feb 10th, 2014
User Badges:

Hi all,


Can someone explain to me why I would only be receiving 9mbps instead of the higher rates that I should get on ADSL2+? The output is below, I can see that the noise margin is low? does this has such a detrimental affect?


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'                          'IFTN'

Chip Vendor Specific:  0x0000                    0x71C8

Chip Vendor Country:   0x0F                      0xB5

Modem Vendor ID: 'CSCO'                          '    '

Modem Vendor Specific: 0x0000                    0x0000

Modem Vendor Country:  0xB5                      0x00

Serial Number Near:    FCZ10421129

Serial Number Far:

Modem VerChip ID:        C196 (0)

DFE BOM:         DFE3.0 Annex A (1)

Capacity Used:   95%                             99%

Noise Margin:     4.5 dB                          6.0 dB

Output Power:    20.0 dBm                        13.0 dBm

Attenuation:     39.0 dB                         20.0 dB

FEC ES Errors:    0                               0

ES Errors:        0                               0

SES Errors:       0                               0

LOSES Errors:     0                               2

UES Errors:       0                              50

Defect Status:   None                            None



Ashford#show dsl interface aTM 0

ATM0

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'                          'IFTN'

Chip Vendor Specific:  0x0000                    0x71C8

Chip Vendor Country:   0x0F                      0xB5

Modem Vendor ID: 'CSCO'                          '    '

Modem Vendor Specific: 0x0000                    0x0000

Modem Vendor Country:  0xB5                      0x00

Serial Number Near:    FCZ10421129

Serial Number Far:

Modem VerChip ID:        C196 (0)

DFE BOM:         DFE3.0 Annex A (1)

Capacity Used:   95%                             99%

Noise Margin:     3.5 dB                          6.0 dB

Output Power:    20.0 dBm                        13.0 dBm

Attenuation:     39.0 dB                         20.0 dB

FEC ES Errors:    0                               0

ES Errors:        0                               0

SES Errors:       0                               0

LOSES Errors:     0                               2

UES Errors:       0                              50

Defect Status:   None                            None

Last Fail Code:  None

Watchdog Counter: 0xCD

Watchdog Resets: 0

Selftest Result: 0x00

Subfunction:     0x00

Interrupts:      25062 (0 spurious)

PHY Access Err:  0

Activations:     5

LED Status:      ON

LED On Time:     100

LED Off Time:    100

Init FW:         init_AMR_4.0.018.bin

Operation FW:    AMR-E-4.0.018.bin

FW Source:       external

FW Version:      4.0.18



                 DS Channel1      DS Channel0   US Channel1       US Channel0

Speed (kbps):             0             9246             0              1143

Cells:                    0          4415437             0          48798982

Reed-Solomon EC:          0             1286             0                 0

CRC Errors:               0               30             0                32

Header Errors:            0               27             0                 7

Total BER:                0E-0           3754E-10

Leakage Average BER:      0E-0           2309E-10

Interleave Delay:         0                2             0                 9

                        ATU-R (DS)      ATU-C (US)

Bitswap:               enabled            enabled

Bitswap success:          0                   0

Bitswap failure:          0                   0

  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
Loading.

Actions

This Discussion

Related Content