Nemesi18
17-03-2016, 20:08
Sto cercando di stabilire fino a quanto spingermi con l'abbassamento dell'SNR senza compromettere la stabilita' e la qualita' della connessione.
Link
Status: Up (Showtime)
Uptime: 24' 45''
Last reset: 24' 45''
Tx System: ADSL2+ No Defect Fast
DSLAM: Broadcom (BDCM - 0xa1f2)
Firmware: A2pD038f.d23e
-
Counters
Downstrem Upstream
Data Rate: 16.667 Mbps 997.000 Kbps
Attainable Rate: 17.892 Mbps 1.113 Mbps
SNR: 7.0 dB 14.6 dB
Signal Attenuation: 24.0 dB 13.6 dB
Line Attenuation: 21.5 dB 14.1 dB
Power: 18.6 dBm 12.1 dBm
MSGc (overhead channel message bytes): 60 bytes 16 bytes
B (mux data frame bytes): 254 bytes 30 bytes
M (mux data frames in FEC data frame): 1 frames 1 frames
T (mux data frames over sync bytes): 2 frames 3 frames
R (FEC data frame check bytes): 0 bytes 0 bytes
S (FEC/PMD data frame length): 0.4886 0.9841
L (PMD data frame bits): 4175 bits 252 bits
D (interleaver depth): 1 bits 1 bits
Super Frames: 92089 91474
Super Frames Errors: 0 0
Reed Salomon: 0 1740210
RS Correctable Errors: 0 0
RS UnCorrectable Errors: 0 0
Header Error Check: 84 0
Out of Cell Delineation: 3 0
Lost Cell Delineation: 3 0
Total Cells: 58370569 3484605
Data Cells: 9375596 341406
Drop Cells: 0 -
Bit Errors: 0 0
Errored Seconds: 29 0
Severely Errored Seconds: 0 0
UnAvailable Seconds: 97 97
Available Seconds: 1485 -
INP: 0.0 0.0
INPRein: 0.0 0.0
Delay: 0 0
PER: 161.2 162.3
OR: 32.74 10.83
-
Errors
Showtime Total
Local Remote Local Remote
Forward Error Correction: 0 0 0 0
Cyclic Redundancy Check: 40 0 40 0
Errored Seconds: 29 0 29 0
Severely Errored Seconds: 0 0 0 0
UnAvailable Seconds: 0 0 97 97
Loss Of Signal: 0 0 0 0
Loss Of Frame: 0 0 0 0
Loss Of Margin: 0 0 0 0
Questa e' la situazione abbassando di 2dB l'SNR. Fino a 6dB so che la mia connessione resta stabile ma mi preoccupano i CRC. Gia' adesso la media e' di 1,6-1,8 al minuto. Cosa ne pensate?
Link
Status: Up (Showtime)
Uptime: 24' 45''
Last reset: 24' 45''
Tx System: ADSL2+ No Defect Fast
DSLAM: Broadcom (BDCM - 0xa1f2)
Firmware: A2pD038f.d23e
-
Counters
Downstrem Upstream
Data Rate: 16.667 Mbps 997.000 Kbps
Attainable Rate: 17.892 Mbps 1.113 Mbps
SNR: 7.0 dB 14.6 dB
Signal Attenuation: 24.0 dB 13.6 dB
Line Attenuation: 21.5 dB 14.1 dB
Power: 18.6 dBm 12.1 dBm
MSGc (overhead channel message bytes): 60 bytes 16 bytes
B (mux data frame bytes): 254 bytes 30 bytes
M (mux data frames in FEC data frame): 1 frames 1 frames
T (mux data frames over sync bytes): 2 frames 3 frames
R (FEC data frame check bytes): 0 bytes 0 bytes
S (FEC/PMD data frame length): 0.4886 0.9841
L (PMD data frame bits): 4175 bits 252 bits
D (interleaver depth): 1 bits 1 bits
Super Frames: 92089 91474
Super Frames Errors: 0 0
Reed Salomon: 0 1740210
RS Correctable Errors: 0 0
RS UnCorrectable Errors: 0 0
Header Error Check: 84 0
Out of Cell Delineation: 3 0
Lost Cell Delineation: 3 0
Total Cells: 58370569 3484605
Data Cells: 9375596 341406
Drop Cells: 0 -
Bit Errors: 0 0
Errored Seconds: 29 0
Severely Errored Seconds: 0 0
UnAvailable Seconds: 97 97
Available Seconds: 1485 -
INP: 0.0 0.0
INPRein: 0.0 0.0
Delay: 0 0
PER: 161.2 162.3
OR: 32.74 10.83
-
Errors
Showtime Total
Local Remote Local Remote
Forward Error Correction: 0 0 0 0
Cyclic Redundancy Check: 40 0 40 0
Errored Seconds: 29 0 29 0
Severely Errored Seconds: 0 0 0 0
UnAvailable Seconds: 0 0 97 97
Loss Of Signal: 0 0 0 0
Loss Of Frame: 0 0 0 0
Loss Of Margin: 0 0 0 0
Questa e' la situazione abbassando di 2dB l'SNR. Fino a 6dB so che la mia connessione resta stabile ma mi preoccupano i CRC. Gia' adesso la media e' di 1,6-1,8 al minuto. Cosa ne pensate?