This is the odd-shaped SNR-vs-tone graph that I get from my
modem #4:
The others have the normal overall smooth curve apart from the usual notches at the top end, but anyway, without the depression at the very top seen here. Why do you think that depression might be there?
This is the graph for
modem #3, for comparison purposes - the normal shape :
Here are the complete stats for modem #4:
xdslctl: ADSL driver and PHY status
Status: Showtime
Last Retrain Reason: 8000
Last initialization procedure status: 0
Max: Upstream rate = 442 Kbps, Downstream rate = 2940 Kbps
Bearer: 0, Upstream rate = 525 Kbps, Downstream rate = 2785 Kbps
Link Power State: L0
Mode: ADSL2 Annex A
TPS-TC: ATM Mode(0x0)
Trellis: U:ON /D:ON
Line Status: No Defect
Training Status: Showtime
Down Up
SNR (dB): 2.4 5.8
Attn(dB): 64.5 40.9
Pwr(dBm): 18.4 12.4
ADSL2 framing
Bearer 0
MSGc: 59 11
B: 28 62
M: 8 1
T: 3 1
R: 16 12
S: 2.6243 3.7736
L: 756 159
D: 1 8
Counters
Bearer 0
SF: 5746059 541776
SFErr: 994 5
RS: 140060197 3638675
RSCorr: 351555 22698
RSUnCorr: 1016 0
ReXmt: 448050 0
ReXmtCorr: 447986 0
ReXmtUnCorr: 1122 0
Bearer 0
HEC: 1140 1
OCD: 2 0
LCD: 2 0
Total Cells: 606046574 114767360
Data Cells: 34016038 5929808
Drop Cells: 0
Bit Errors: 56760 1666
ES: 954 4
SES: 0 0
UAS: 53 53
AS: 92574
Bearer 0
INP: 28.00 2.00
INPRein: 0.00 0.00
delay: 8 8
PER: 15.99 16.03
OR: 32.51 8.48
AgR: 2805.74 532.16
Bitswap: 21234/21234 105/105
Total time = 1 days 1 hours 43 min 47 sec
FEC: 351555 22698
CRC: 994 5
ES: 954 4
SES: 0 0
UAS: 53 53
LOS: 0 0
LOF: 0 0
LOM: 0 0
Latest 15 minutes time = 13 min 47 sec
FEC: 5613 188
CRC: 23 0
ES: 22 0
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
LOM: 0 0
Previous 15 minutes time = 15 min 0 sec
FEC: 6079 648
CRC: 20 0
ES: 20 0
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
LOM: 0 0
Latest 1 day time = 1 hours 43 min 47 sec
FEC: 37897 2090
CRC: 148 0
ES: 140 0
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
LOM: 0 0
Previous 1 day time = 24 hours 0 sec
FEC: 313658 20608
CRC: 846 5
ES: 814 4
SES: 0 0
UAS: 53 53
LOS: 0 0
LOF: 0 0
LOM: 0 0
Since Link time = 1 days 1 hours 42 min 53 sec
FEC: 351555 22698
CRC: 994 5
ES: 954 4
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
LOM: 0 0
NTR: mipsCntAtNtr=0 ncoCntAtNtr=0
Summary of all modems - Live sync rates:
#1: down 2898 kbps, up 529 kbps
#2: down 2807 kbps, up 553 kbps
#3: down 3066 kbps, up 396 kbps
#4: down 2785 kbps, up 525 kbps