Традиционно - статистика.

[Melody]

Добрый день.

Прокомментируйте пожалуйста:

Connection time : 00:28:44
Handshake Time/Retries : 16 sec/0
TX Rate (Last/Init/Min/Max) : 21600/28800/9600/31200
RX Rate (Last/Init/Min/Max) : 33600/33600/12000/33600
Modulation/Protocol/Compression : V.34/LAPM/V.42bis
TX Symbol rate : 3429
TX/RX carrier frequency, Hz : 1959/1959
Signal Level (TX/Power Drop), -dB : 9/4
RX Signal Level (Last/Min/Max), -dB : 24/31/22
Band Edge Lower/Upper, Hz : 150/3825
Round trip delay, ms : 3.749
EQM Value (Last/Min/Max/Negative) : 30/11/127/0
EQM Samples Running Sum : 001B
EQM Last 10 Readings : 28 65 37 31 33 31 29 30 43 30
SNR Ratio (Last/Min/Max), dB : 36/20/43
TX/RX Non-linear Encoding : OFF/ON
TX/RX Precoding : OFF/ON
TX/RX Constellation Shaping : OFF/ON
TX Trellis Encoding : 16 state
TX Pre-emphasis : 6
TX/RX state (Max TX/RX, Last TX/RX) : 87H/67H, 67H/67H
Error Correction Status : ODP:T ADP:R SABME:T UA:R XID:T,R SYNC
Energy at 3750Hz/Average Energy : 2372/2545
Retrains (Issued/Granted/Fast) : 1/33/0
Renegs (Issued/Granted) : 11/14
Retrans per frame/Frames rejected : 1/154
Total number of REJ sent/received : 154/65
Last Retrain/Reneg reason : Remote initiated a retrain
Last Retrain/Reneg requested : Remote Retrain
Minutes Since Last Retrain/Reneg : 0
Disconnect reason : LOCAL REQUEST
Remote supports symbol rate (1,2,5) : 2743:ON 2800:ON 3429:ON 3429-TX:ON
Remote supports symbol rate (3,4) : 3000-L:ON 3000-H:ON 3200-L:ON 3200-H:ON
Remote power drop support : ON
Remote max symbol rate difference : 0 steps
Remote is a CME modem : No
Remote supports V.34bis : Yes
Remote frequency source : Internal
CRe/CRd/CL/MS/ACK/NAK received : No/No/No/No/No/No
V.8bis success/V.8bis neg started : No/Yes
Workaround used : ABCODE check (machine-gun noise WA) (возможно из-за мобильника, прозвучавшего на последних секундах сеанса?)

Ваши предложения?

Модем - 2814BXL/VR+

Спасибо.

[Technical Support]

Предложения такие:

1. В дальнейшем Вы будете показывать всю статистику, а не только at%s1. Нас также интересуют at%s и at#ud.

2. Очень большое число перетренировок, запрошенных удалённым модемом:

Retrains (Issued/Granted/Fast) : 1/33/0

По всей видимости, на той стороне - сервер CISCO. Они любят запрашивать перетренировки "на каждый чих".

Для борьбы с этим явлением воспользуйтесь строкой инициализации (прописывается в свойствах модема в Windows):

S91=12 S210.7=1 +MS=,,,,,,9600

Пересоберите статистику (только всю, ладно?) и покажите нам.
_________________
Inpro
Technical Support

[Melody]

Добрый день.

Продолжим. Использовал вышеприведенную строку инициализации, работать стало пошустрее. Уже спасибо. :)

Diag Command Specification rev.: 1.0
Call Setup Result code : Data Answering signal detected
Multi-media mode : Data Only
DTE-DCE interface mode : Async data
TX/RX signal power level, -dBm : 12/24
Estimated noise level, -dBm : 65
TX/RX Negotiation : V.34/V.34
TX/RX Symbol Rate : 3429/3429
TX/RX Carrier frequency, Hz : 1959/1959
TX data rate (Last/Init) : 9600/9600
RX data rate (Last/Init) : 33600/33600
Temporary carrier loss count : 0
Carrier Rate Re-neg count : 24
Retrains Requested/Granted : 2/2
Protocol/Compression : V.42 LAPM/V.42bis
Error control frame size, bytes: 128
Error control timeouts in TX : 28
Error control NAKs received : 12
Compression dict. size, bytes : 2048
TX/RX flow control : V.24 ckt 106/133 / V.24 ckt 106/133
TX/RX chars sent : 489881/4955902
TX/RX chars lost (data overrun): 0/0
TX/RX I-Frame count : 15791/38887
TX/RX I-Frame error count : 12/166
Termination Cause : cct108 turned Off

Connection time : 00:25:35
Handshake Time/Retries : 17 sec/0
TX Rate (Last/Init/Min/Max) : 9600/9600/9600/9600
RX Rate (Last/Init/Min/Max) : 33600/33600/19200/33600
Modulation/Protocol/Compression : V.34/LAPM/V.42bis
TX Symbol rate : 3429
TX/RX carrier frequency, Hz : 1959/1959
Signal Level (TX/Power Drop), -dB : 12/0
RX Signal Level (Last/Min/Max), -dB : 23/24/21
Band Edge Lower/Upper, Hz : 150/3825
Round trip delay, ms : 3.749
EQM Value (Last/Min/Max/Negative) : 26/1/127/0
EQM Samples Running Sum : 0018
EQM Last 10 Readings : 27 27 27 26 28 29 31 26 25 30
SNR Ratio (Last/Min/Max), dB : 41/36/41
TX/RX Non-linear Encoding : OFF/ON
TX/RX Precoding : OFF/ON
TX/RX Constellation Shaping : OFF/ON
TX Trellis Encoding : 16 state
TX Pre-emphasis : 6
TX/RX state (Max TX/RX, Last TX/RX) : 87H/85H, 87H/67H
Error Correction Status : ODP:T ADP:R SABME:T UA:R XID:T,R SYNC
Energy at 3750Hz/Average Energy : 698/719
Retrains (Issued/Granted/Fast) : 2/2/0
Renegs (Issued/Granted) : 24/0
Retrans per frame/Frames rejected : 1/166
Total number of REJ sent/received : 166/12
Last Retrain/Reneg reason : Fall-forward due to low EQM
Last Retrain/Reneg requested : Local Rate Renegotiation
Minutes Since Last Retrain/Reneg : 7
Disconnect reason : LOCAL REQUEST
Remote supports symbol rate (1,2,5) : 2743:ON 2800:ON 3429:ON 3429-TX:ON
Remote supports symbol rate (3,4) : 3000-L:ON 3000-H:ON 3200-L:ON 3200-H:ON
Remote power drop support : ON
Remote max symbol rate difference : 0 steps
Remote is a CME modem : No
Remote supports V.34bis : Yes
Remote frequency source : Internal
CRe/CRd/CL/MS/ACK/NAK received : Yes/No/Yes/No/Yes/No
V.8bis success/V.8bis neg started : Yes/Yes

Time Online.................. 00:25:35
Termination Reason........... LOCAL REQUEST
Tx Rate (Last/Init/Min/Max).. 9600/ 9600/ 9600/ 9600 bps
Rx Rate (Last/Init/Min/Max).. 33600/33600/19200/33600 bps
Modulation................... V.34bis
Protocol/Compression......... LAP-M/V.42bis
Line Quality................. 26
Tx/Power Drop/Rx Level....... 12/0/24
SNR Last/Min/Max............. 41/36/41
Highest Rx/Tx State.......... 85/87
EQM Sum...................... 0018
Retrains Issued/Granted/Auto. 2/2/0
Renegs Issued/Granted........ 24/0
FForwards/FBacks/Denied...... 13/12/0
Forced FB/FB after FF/MaxREJ. 5/4/9
Last dialed number........... P535353

Вроде все. Да?

Спасибо.

[Technical Support]

Продолжения не будет. Подсчитали производительность модема на приём - 3228 байт/с, что для Вашей линии - отличный результат.
_________________
Inpro
Technical Support

[Melody]

Большое спасибо. 8)