Помогите повысить скорость

[Роман]

Помогите повысить скорость. Статистика прилагается.
Заранее благодарен.

Time Online.................. 02:45:48
Termination Reason........... LOCAL REQUEST
Tx Rate (Last/Init/Min/Max).. 16800/21600/16800/21600 bps
Rx Rate (Last/Init/Min/Max).. 19200/21600/16800/21600 bps
Modulation................... V.34bis
Protocol/Compression......... LAP-M/V.42bis
Line Quality................. 127
Tx/Power Drop/Rx Level....... 15/0/16
SNR Last/Min/Max............. NA/NA/NA
Highest Rx/Tx State.......... 85/87
EQM Sum...................... 0000
RBS Pattern.................. NA
Rate Drop.................... NA
Digital Loss................. None
Retrains Issued/Granted/Auto. 0/0/0
Renegs Issued/Granted........ 3/2
FForwards/FBacks/Denied...... 1/2/0
Forced FB/FB after FF/MaxREJ. 0/0/3
Last dialed number........... P9W681111
Flex fail 9401834355E1


Symbol Rate.................. 2400
Carrier Frequency Hz, Rx/Tx.. 1600/1600
EQM Value (Last/Min/Max)..... 127/14/127
EQM Hits..................... 0
EQM Last 10 Readings......... 127 47 48 47 47 46 48 46 48 46
Last Retrain/Reneg Status.... Local Rate Renegotiation
Last Retrain/Reneg Reason.... Local Fallforward due to Low EQM
Reason for V.34 Fallback..... Data Pump decision to Fallback in Phase 2
Last Retrain/Reneg Time...... 142 minutes ago
Handshake Time/Retries....... 21 seconds/0
Non-linear Encoding, Rx/Tx... ON/ON
Precoding, Rx/Tx............. OFF/OFF
Shaping, Rx/Tx............... ON/ON
Trellis Encoding, Tx......... 16 state
Pre-Emphasis Index, Tx....... 0
Band Edges Lower/Upper, Hz... 300/3825
Round trip delay, ms......... 16,8
Last Rx/Tx State............. 67/87
Energy at 3750Hz/Average .... 31/200
Detection of 120 Hz Tones.... Yes
Detection of Dual PCM........ Yes
V.8 Negotiation Started...... Yes
V.8bis Success............... Yes
V.8bis CRe,CRd,CL,MS,ACK,NAK. Yes/No/Yes/No/Yes/No
Remote Manufacturer.......... Rockwell (Conexant)
Remote Licensee Code......... Lucent
Remote Protocol Support...... K56flex V.90
Remote K56flex Version....... 03
Remote K56flex Capabilities.. Prototype mode is not supported
Remote Type.................. Server (Digital)
Remote supports Symbol Rates. 2743 2800 3429
Remote supports Symbol Rates. 3200(L) 3200(H)
Remote supports Power Drop... Yes
Remote is CME Modem.......... No
Remote supports V.34bis...... Yes
Remote Max SR Difference..... 0 Symbol Rate Steps
Remote Frequency Source...... Internal
Error Correction Status Byte. SYNC UA:R SAMBE:T XID:T XID:R
Frames REJected, Last/Total.. 1/255
Frames Errors, Rx/Tx......... 1279/75 (0,7%/0,1%)
Frames Count, Rx/Tx.......... 175120/74419
Error Control Frame Size..... V.42 LAPM (128)
Error Control Timeouts....... 3
Error Control Link NAKs...... 75
Compression Dictionary Size.. V.42bis (1024)
Characters Received.......... 20636522
Characters Sent.............. 672040
Average CPS, Rx/Tx........... 2074/67
Characters Lost, Rx/Tx....... 0/0
Estimated Noise Level, -dBm.. 100

[Technical Support]

Судя по этой строчке:

SNR Last/Min/Max............. NA/NA/NA

это просто чудо, что Вам удаётся работать на 16800..21600. Строчка означает, что SNR настолько плох, что модем не решается его отобразить

Всё, что можно порекомендовать - вписать такие установки в строку инициализации в свойствах модема:

S210.7=1 S91=15 +MS=11

Теоретически, можно попробовать поднять символьную скорость: S51=0, но это нужно пробовать и смотреть. Станет хуже - убирайте.
_________________
Inpro
Technical Support

[Роман]

С новыми установками скорость соединения стала не постоянной от
7200..21600.

У меня обычно SNR Last/Min/Max............. 43/43/43

Возможно ли на моей линии символьная скорость 3200 :?: или это случайность:


Time Online.................. 00:00:43
Termination Reason........... NO REMOTE RESPONSE
Tx Rate (Last/Init/Min/Max).. 26400/24000/24000/26400 bps
Rx Rate (Last/Init/Min/Max).. 16800/16800/16800/16800 bps
Modulation................... V.34bis
Protocol/Compression......... LAP-M/V.42bis
Line Quality................. 49
Tx/Power Drop/Rx Level....... 0/0/24
SNR Last/Min/Max............. 43/9/43
Highest Rx/Tx State.......... 47/87
EQM Sum...................... 048E
RBS Pattern.................. NA
Rate Drop.................... NA
Digital Loss................. None
Retrains Issued/Granted/Auto. 0/1/0
Renegs Issued/Granted........ 0/1
FForwards/FBacks/Denied...... 0/0/0
Forced FB/FB after FF/MaxREJ. 0/0/1
Last dialed number........... P9W681111
Flex fail


Symbol Rate.................. 3200
Carrier Frequency Hz, Rx/Tx.. 1829/1920
EQM Value (Last/Min/Max)..... 49/39/62
EQM Hits..................... 0
EQM Last 10 Readings......... 50 49 55 43 47 49 49 52 39 50
Last Retrain/Reneg Status.... Remote Retrain
Last Retrain/Reneg Reason.... Remote Retrain
Last Retrain/Reneg Time...... 0 minutes ago
Handshake Time/Retries....... 18 seconds/0
Non-linear Encoding, Rx/Tx... ON/ON
Precoding, Rx/Tx............. ON/ON
Shaping, Rx/Tx............... ON/ON
Trellis Encoding, Tx......... 16 state
Pre-Emphasis Index, Tx....... 0
Band Edges Lower/Upper, Hz... 412/3825
Round trip delay, ms......... 16,6
Last Rx/Tx State............. 47/40
Energy at 3750Hz/Average .... 30/45
Detection of 120 Hz Tones.... No
Detection of Dual PCM........ Yes
V.8 Negotiation Started...... Yes
V.8bis Success............... No
V.8bis CRe,CRd,CL,MS,ACK,NAK. No/No/No/No/No/No
Remote supports Symbol Rates. 2743 2800 3429 3000(L) 3000(H)
Remote supports Symbol Rates. 3200(L) 3200(H) 3429(Tx)
Remote supports Power Drop... Yes
Remote is CME Modem.......... No
Remote supports V.34bis...... Yes
Remote Max SR Difference..... 0 Symbol Rate Steps
Remote Frequency Source...... Internal
Workaround Used.............. ABCODE check (Machine Gun Noise)
Error Correction Status Byte. ADP:R ODP:T
Error Correction Status Byte. SYNC UA:R SAMBE:T XID:T XID:R
Frames REJected, Last/Total.. 2/1
Frames Errors, Rx/Tx......... 1/0 (3,6%/0,0%)
Frames Count, Rx/Tx.......... 28/6
Error Control Frame Size..... V.42 LAPM (128)
Error Control Timeouts....... 14
Error Control Link NAKs...... 0
Compression Dictionary Size.. V.42bis (1024)
Characters Received.......... 18
Characters Sent.............. 508
Average CPS, Rx/Tx........... 0/11
Characters Lost, Rx/Tx....... 0/0
Estimated Noise Level, -dBm.. 67


:?: Где можно узнать значение каждой строчки статистики?

Спасибо.

[Technical Support]

[Роман]

Sorry. Не ту статистику дал.
Подскажите пожайлуста где можно узнать описание каждой строчки статистики?
Вот статистика с вашими настройками:

Inpro IDC 2814/5614 BXL/VR Diagnostics, Version 1.0.1.30
11.05.03 22:41:35 - Outbound Call by Remote Access
--------------------------------------------------------
Modem type: IDC-5614BXL/VR+ (Plus) Firmware revision: V2.22

Time Online.................. 00:42:32
Termination Reason........... LINK DISCONNECT
Tx Rate (Last/Init/Min/Max).. 21600/21600/19200/21600 bps
Rx Rate (Last/Init/Min/Max).. 19200/21600/19200/21600 bps
Modulation................... V.34bis
Protocol/Compression......... LAP-M/V.42bis
Line Quality................. 39
Tx/Power Drop/Rx Level....... 15/0/34
SNR Last/Min/Max............. 43/43/43
Highest Rx/Tx State.......... 85/87
EQM Sum...................... 0000
RBS Pattern.................. NA
Rate Drop.................... NA
Digital Loss................. None
Retrains Issued/Granted/Auto. 0/1/0
Renegs Issued/Granted........ 1/4
FForwards/FBacks/Denied...... 0/1/0
Forced FB/FB after FF/MaxREJ. 0/0/6
Last dialed number........... P9W681111
Flex fail

Symbol Rate.................. 2400
Carrier Frequency Hz, Rx/Tx.. 1600/1800
EQM Value (Last/Min/Max)..... 39/25/98
EQM Hits..................... 0
EQM Last 10 Readings......... 39 41 38 42 44 38 39 38 40 39
Last Retrain/Reneg Status.... Remote Rate Renegotiation
Last Retrain/Reneg Reason.... Remote Rate Renegotiation
Last Retrain/Reneg Time...... 37 minutes ago
Handshake Time/Retries....... 19 seconds/0
Non-linear Encoding, Rx/Tx... ON/ON
Precoding, Rx/Tx............. OFF/OFF
Shaping, Rx/Tx............... ON/ON
Trellis Encoding, Tx......... 16 state
Pre-Emphasis Index, Tx....... 0
Band Edges Lower/Upper, Hz... 300/3825
Round trip delay, ms......... 16,8
Last Rx/Tx State............. 85/87
Energy at 3750Hz/Average .... 24/44
Detection of 120 Hz Tones.... No
Detection of Dual PCM........ Yes
V.8 Negotiation Started...... Yes
V.8bis Success............... No
V.8bis CRe,CRd,CL,MS,ACK,NAK. No/No/No/No/No/No
Remote supports Symbol Rates. 2743 2800 3429 3000(L) 3000(H)
Remote supports Symbol Rates. 3200(L) 3200(H) 3429(Tx)
Remote supports Power Drop... Yes
Remote is CME Modem.......... No
Remote supports V.34bis...... Yes
Remote Max SR Difference..... 0 Symbol Rate Steps
Remote Frequency Source...... Internal
Error Correction Status Byte. ADP:R ODP:T
Error Correction Status Byte. SYNC UA:T UA:R SAMBE:T XID:T XID:R
Frames REJected, Last/Total.. 1/17
Frames Errors, Rx/Tx......... 273/194 (1,6%/1,8%)
Frames Count, Rx/Tx.......... 16880/10648
Error Control Frame Size..... V.42 LAPM (128)
Error Control Timeouts....... 54
Error Control Link NAKs...... 194
Compression Dictionary Size.. V.42bis (1024)
Characters Received.......... 2452134
Characters Sent.............. 532175
Average CPS, Rx/Tx........... 960/208
Characters Lost, Rx/Tx....... 0/0
Estimated Noise Level, -dBm.. 77

[Technical Support]

В низкочастотной области очень большое количество помех и шумов. Возможно, это связано с линией - но также может быть вызвано наличием конденсаторов в телефонных розетках или телефонными аппаратами с АОН, включёнными параллельно модему. Также возможна и аппаратная неисправность Вашего модема (можно проверить в сервисном центре).

Что касается описания статистики, то читайте FAQ.
_________________
Inpro
Technical Support