Visit Us On TwitterVisit Us On FacebookVisit Us On GooglePlusVisit Us On Youtube

Controllo qualità linea ADSL su router Cisco

Per controllare la qualità della linea ADSL di qualsiasi provider Cisco mette a disposizione il seguente comando:

show dsl int atm0

questa la risposta tipo:

router#show dsl int atm0
ATM0
Alcatel 20190 chipset information
ATU-R (DS)                      ATU-C (US)
Modem Status:    Showtime (DMTDSL_SHOWTIME)
DSL Mode:        ITU G.992.1 (G.DMT) Annex A
ITU STD NUM:     0×03                            0×2
Vendor ID:       ‘STMI’                          ‘TSTC’
Vendor Specific: 0×0000                          0×0000
Vendor Country:  0x0F                            0xB5
Chip ID:         C196 (0)
DFE BOM:         DFE3.0 Annex A (1)
Capacity Used:   60%                             44%
Noise Margin:    20.5 dB                         24.0 dB
Output Power:    19.0 dBm                        12.5 dBm
Attenuation:     21.0 dB                         10.5 dB
FEC ES Errors:    0                               0
ES Errors:       55                               3
SES Errors:       0                               0
LOSES Errors:     0                               0
UES Errors:       0                               0
Defect Status:   None                            None
Last Fail Code:  None
Watchdog Counter: 0×37
Watchdog Resets: 1
Selftest Result: 0×00
Subfunction:     0×00
Interrupts:      12405 (0 spurious)
PHY Access Err:  0
Activations:     4
LED Status:      ON
LED On Time:     100
LED Off Time:    100
Init FW:         init_AMR-3.0.014_no_bist.bin
Operation FW:    AMR-3.0.014.bin
FW Source:       embedded
FW Version:      3.0.14

Header Errors:            0               13             0                 0
Total BER:                0E-0           5595E-11
Leakage Average BER:      0E-0           1230E-13
ATU-R (DS)      ATU-C (US)
Bitswap:               enabled            enabled
Bitswap success:          0                   0
Bitswap failure:          0                   0

LOM Monitoring : Disabled
DMT Bits Per Bin
000: 0 0 0 0 0 0 0 0 0 2 3 4 5 5 5 5
010: 6 5 6 6 6 6 6 6 5 6 5 5 4 2 0 0
020: 0 0 0 0 0 4 5 5 5 6 6 7 7 7 8 8
030: 8 8 8 8 8 8 9 8 8 8 8 8 8 8 8 8
040: 0 8 8 8 8 8 8 8 8 8 8 8 8 8 7 8
050: 7 8 8 2 8 8 7 7 7 8 7 7 7 7 7 7
060: 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7
070: 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7
080: 7 6 6 5 5 6 6 6 6 6 6 6 6 6 6 6
090: 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6
0A0: 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6
0B0: 6 6 6 5 5 5 5 5 5 5 5 5 5 5 6 5
0C0: 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5
0D0: 5 5 5 5 5 5 5 5 5 5 5 5 5 4 5 5
0E0: 5 5 5 5 4 4 5 4 5 5 4 4 4 4 5 5
0F0: 5 5 5 5 5 5 4 4 5 4 4 5 4 4 5 5

DSL: Training log buffer capability is not enabled
router#

Per quanto riguarda il parametro noise margin questa la tabella:

* 8-13     normale

* 14-22  molto buono

* 23-28  ottimo

Per il parametro Attenuation:

* 40-60  normale

* 30-40  molto buono

* 20-30 ottimo

Dopo ovviamente testare la linea con www.speedtest.net

Per referenza: Connecting Cisco Routers to Service Provider DSL Networks

Share Button

PDF Creator    Invia l'articolo in formato PDF   

Leave a Reply

You must be logged in to post a comment.

English