Много авторетрейнов

[Baklan]

Здравствуйте. Качал тут файл - 185 мегабайт, статистику заодно собрал. Не могли бы дать совет: можно ли ещё чего-нибудь вытянуть из модема настройками?
Сейчас строка инициализации такая:

L1M5S17=64S91=22S120=0S55=11S50=37&K3+MS=12,,,37333

Прошито во флэш:
s13.7=1
s202.7=1
s210=157
s106=20
s107=30
s108=35

Прошивка - 2.23, inf-файл последний. Заранее спасибо.


at%s%s1#ud
Time Online.................. 16:02:19
Termination Reason........... LOCAL REQUEST
Tx Rate (Last/Init/Min/Max).. 26400/21600/14400/26400 bps
Rx Rate (Last/Init/Min/Max).. 37333/37333/36000/37333 bps
Modulation................... V.90
Protocol/Compression......... LAP-M/V.42bis
Line Quality................. 38
Tx/Power Drop/Rx Level....... 22/0/16
SNR Last/Min/Max............. 43/34/43
Highest Rx/Tx State.......... 65/87
EQM Sum...................... 0105
RBS Pattern.................. 00
Rate Drop.................... 0
Digital Loss................. 2000
Retrains Issued/Granted/Auto. 2/0/62
Renegs Issued/Granted........ 65/100
FForwards/FBacks/Denied...... 1/66/0
Forced FB/FB after FF/MaxREJ. 0/0/0
Last dialed number........... P3240141
V90 9481834246E0


Rockwell Diagnostics/W32, version 1.3.0.0, compiled at Jun 13 2002 22:35:24
(c) 2000 Stanislav V. Mekhanoshin (rampitec@tu.spb.ru, 2:5030/172.9@fidonet)
----------------------------------------------------------------------------
Connection time : 16:02:19
Handshake Time/Retries : 25 sec/0
TX Rate (Last/Init/Min/Max) : 26400/21600/14400/26400
RX Rate (Last/Init/Min/Max) : 37333/37333/36000/37333
Modulation/Protocol/Compression : V.90/LAPM/V.42bis
TX Symbol rate : 3200
Signal Level (TX/Power Drop), -dB : 22/0
RX Signal Level (Last/Min/Max), -dB : 16/16/16
Band Edge Lower/Upper, Hz : 150/3825
Round trip delay, ms : 7.563
EQM Value (Last/Min/Max/Negative) : 38/7/127/0
EQM Samples Running Sum : 0105
EQM Last 10 Readings : 45 35 33 39 39 41 40 42 30 37
SNR Ratio (Last/Min/Max), dB : 43/34/44
TX Non-linear Encoding : OFF
TX Precoding : OFF
TX/RX Constellation Shaping : OFF/OFF
TX Trellis Encoding : 16 state
TX Pre-emphasis : 6
TX/RX state (Max TX/RX, Last TX/RX) : 87H/65H, 87H/65H
Error Correction Status : SABME:T UA:R XID:T,R SYNC
Dual PCM/120 Hz detection : No/Yes
Energy at 3750Hz/Average Energy : 3004/1619
RBS Pattern/Alternating RBS Pattern : 00/00
V.90 Digital Pad/A-law/HighPowerSrv : 0dB/Yes/No
Retrains (Issued/Granted/Fast) : 2/0/64
Renegs (Issued/Granted) : 1/100
Retrans per frame/Frames rejected : 1/70
Total number of REJ sent/received : NA
Last Retrain/Reneg reason : Remote initiated a reneg
Last Retrain/Reneg requested : Remote Rate Renegotiation
Minutes Since Last Retrain/Reneg : 15
Disconnect reason : LOCAL REQUEST
Remote Manufacturer/Licensee Code : Conexant/Conexant
Remote Manufacturer's Product Caps : K56Flex, V.90
Remote V.8bis caps (type) : Digital (Server)
Remote V.8bis caps (K56Flex mode) : K56Flex prototype mode not supported
Remote V.8bis caps (K56Flex version): 1.1
Remote K56Flex RAM version supported: 70
Remote Coding used/forced by server : A-law/Yes
Remote controller version number : 0
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
Remote is ITU/K56Flex neg/High IMD : Yes/Yes/No
V.8 bis CRe detected/early : Yes/No
CRe/CRd/CL/MS/ACK/NAK received : Yes/No/Yes/No/Yes/No
V.8bis success/V.8bis neg started : Yes/Yes


Unimodem Diagnostics/W32, version 1.1.0.0, compiled at Mar 14 2002 18:01:05
(c) 2000 Stanislav V. Mekhanoshin (rampitec@tu.spb.ru, 2:5030/172.9@fidonet)
----------------------------------------------------------------------------
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 : 22/16
Estimated noise level, -dBm : 59
TX/RX Negotiation : V.34/V.90 Issue 1 (asymmetric)
TX/RX Symbol Rate : 3200/8000
TX/RX Carrier frequency, Hz : 1920/0
TX data rate (Last/Init) : 26400/21600
RX data rate (Last/Init) : 37333/37333
Temporary carrier loss count : 0
Carrier Rate Re-neg count : 165
Retrains Requested/Granted : 2/0
Protocol/Compression : V.42 LAPM/V.42bis
Error control frame size, bytes: 128
Error control timeouts in TX : 59
Error control NAKs received : 45
Compression dict. size, bytes : 2048
TX/RX flow control : V.24 ckt 106/133 / V.24 ckt 106/133
TX/RX chars sent : 4095865/211223061
TX/RX chars lost (data overrun): 0/0
TX/RX I-Frame count : 459200/1697808
TX/RX I-Frame error count : 301/3398
Termination Cause : cct108 turned Off

[Technical Support]

В общем-то, ситуация вполне приличная для Вашей линии. Перетренировки возникали один раз в 15 минут, в среднем - весьма неплохой результат!

Можно ли сократить количество перетренировок - зависит от того, возникали авто-ретрейны при выполнении пересогласований Вашего или удалённого модема (по статистике это не узнаешь). Нужно включить динамик модема во время перетренировок (ATM4) и выяснить, что происходило. Для этого разрываете связь сразу же, как только перетренировка закончится, и смотрите:

Last Retrain/Reneg reason : Remote initiated a reneg
Last Retrain/Reneg requested : Remote Rate Renegotiation

Если строчки выглядят, как показано выше, то авто-перетренировки возникли во время пересогласований скорости по инициативе удалённого модема, и тогда есть шанс от них избавиться, ограничив скорость передачи.
_________________
Inpro
Technical Support

[Baklan]

Сделал как было предписано. Указанные строчки нашёл.

at%s%s1#ud
Time Online.................. 00:21:04
Termination Reason........... LOCAL REQUEST
Tx Rate (Last/Init/Min/Max).. 21600/21600/16800/26400 bps
Rx Rate (Last/Init/Min/Max).. 37333/37333/36000/37333 bps
Modulation................... V.90
Protocol/Compression......... LAP-M/V.42bis
Line Quality................. 101
Tx/Power Drop/Rx Level....... 22/0/16
SNR Last/Min/Max............. 34/34/34
Highest Rx/Tx State.......... 65/85
EQM Sum...................... 0107
RBS Pattern.................. 00
Rate Drop.................... 0
Digital Loss................. 2000
Retrains Issued/Granted/Auto. 1/0/2
Renegs Issued/Granted........ 1/14
FForwards/FBacks/Denied...... 0/2/0
Forced FB/FB after FF/MaxREJ. 0/0/0
Last dialed number........... P3240141
V90 9481834246E0

Rockwell Diagnostics/W32, version 1.3.0.0, compiled at Jun 13 2002 22:35:24
(c) 2000 Stanislav V. Mekhanoshin (rampitec@tu.spb.ru, 2:5030/172.9@fidonet)
----------------------------------------------------------------------------
Connection time : 00:21:04
Handshake Time/Retries : 26 sec/0
TX Rate (Last/Init/Min/Max) : 21600/21600/16800/26400
RX Rate (Last/Init/Min/Max) : 37333/37333/36000/37333
Modulation/Protocol/Compression : V.90/LAPM/V.42bis
TX Symbol rate : 3200
Signal Level (TX/Power Drop), -dB : 22/0
RX Signal Level (Last/Min/Max), -dB : 16/16/16
Band Edge Lower/Upper, Hz : 150/3825
Round trip delay, ms : 7.563
EQM Value (Last/Min/Max/Negative) : 101/26/127/0
EQM Samples Running Sum : 0107
EQM Last 10 Readings : 35 33 28 29 32 31 34 32 33 33
SNR Ratio (Last/Min/Max), dB : 34/34/34
TX Non-linear Encoding : OFF
TX Precoding : OFF
TX/RX Constellation Shaping : OFF/OFF
TX Trellis Encoding : 16 state
TX Pre-emphasis : 6
TX/RX state (Max TX/RX, Last TX/RX) : 85H/65H, 67H/65H
Error Correction Status : SABME:T UA:R XID:T,R SYNC
Dual PCM/120 Hz detection : No/Yes
Energy at 3750Hz/Average Energy : 3252/1560
RBS Pattern/Alternating RBS Pattern : 00/00
V.90 Digital Pad/A-law/HighPowerSrv : 0dB/Yes/No
Retrains (Issued/Granted/Fast) : 1/0/0
Renegs (Issued/Granted) : 1/14
Retrans per frame/Frames rejected : 1/69
Total number of REJ sent/received : 69/11
Last Retrain/Reneg reason : Remote initiated a reneg
Last Retrain/Reneg requested : Remote Rate Renegotiation
Minutes Since Last Retrain/Reneg : 0
Disconnect reason : LOCAL REQUEST
Remote Manufacturer/Licensee Code : Conexant/Conexant
Remote Manufacturer's Product Caps : K56Flex, V.90
Remote V.8bis caps (type) : Digital (Server)
Remote V.8bis caps (K56Flex mode) : K56Flex prototype mode not supported
Remote V.8bis caps (K56Flex version): 1.1
Remote K56Flex RAM version supported: 70
Remote Coding used/forced by server : A-law/Yes
Remote controller version number : 0
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
Remote is ITU/K56Flex neg/High IMD : Yes/Yes/No
V.8 bis CRe detected/early : Yes/No
CRe/CRd/CL/MS/ACK/NAK received : Yes/No/Yes/No/Yes/No
V.8bis success/V.8bis neg started : Yes/Yes
Workaround used : RateRenegFailure

Unimodem Diagnostics/W32, version 1.1.0.0, compiled at Mar 14 2002 18:01:05
(c) 2000 Stanislav V. Mekhanoshin (rampitec@tu.spb.ru, 2:5030/172.9@fidonet)
----------------------------------------------------------------------------
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 : 22/16
Estimated noise level, -dBm : 50
TX/RX Negotiation : V.34/V.90 Issue 1 (asymmetric)
TX/RX Symbol Rate : 3200/8000
TX/RX Carrier frequency, Hz : 1920/0
TX data rate (Last/Init) : 21600/21600
RX data rate (Last/Init) : 37333/37333
Temporary carrier loss count : 0
Carrier Rate Re-neg count : 15
Retrains Requested/Granted : 1/0
Protocol/Compression : V.42 LAPM/V.42bis
Error control frame size, bytes: 128
Error control timeouts in TX : 5
Error control NAKs received : 11
Compression dict. size, bytes : 2048
TX/RX flow control : V.24 ckt 106/133 / V.24 ckt 106/133
TX/RX chars sent : 407995/2554851
TX/RX chars lost (data overrun): 0/0
TX/RX I-Frame count : 8594/17617
TX/RX I-Frame error count : 11/69
Termination Cause : cct108 turned Off


Ужал скорость передачи до 14400. Вот что получилось:

at%s%s1#ud
Time Online.................. 02:24:41
Termination Reason........... LOCAL REQUEST
Tx Rate (Last/Init/Min/Max).. 14400/14400/ 9600/14400 bps
Rx Rate (Last/Init/Min/Max).. 37333/37333/34667/37333 bps
Modulation................... V.90
Protocol/Compression......... LAP-M/V.42bis
Line Quality................. 124
Tx/Power Drop/Rx Level....... 22/0/16
SNR Last/Min/Max............. 37/36/39
Highest Rx/Tx State.......... 65/85
EQM Sum...................... 0106
RBS Pattern.................. 00
Rate Drop.................... 0
Digital Loss................. 2000
Retrains Issued/Granted/Auto. 2/0/13
Renegs Issued/Granted........ 19/2
FForwards/FBacks/Denied...... 5/16/0
Forced FB/FB after FF/MaxREJ. 0/0/0
Last dialed number........... P3240141
V90 9481834246E0


Rockwell Diagnostics/W32, version 1.3.0.0, compiled at Jun 13 2002 22:35:24
(c) 2000 Stanislav V. Mekhanoshin (rampitec@tu.spb.ru, 2:5030/172.9@fidonet)
----------------------------------------------------------------------------
Connection time : 02:24:41
Handshake Time/Retries : 26 sec/0
TX Rate (Last/Init/Min/Max) : 14400/14400/9600/14400
RX Rate (Last/Init/Min/Max) : 37333/37333/34667/37333
Modulation/Protocol/Compression : V.90/LAPM/V.42bis
TX Symbol rate : 3200
Signal Level (TX/Power Drop), -dB : 22/0
RX Signal Level (Last/Min/Max), -dB : 16/16/16
Band Edge Lower/Upper, Hz : 150/3825
Round trip delay, ms : 7.250
EQM Value (Last/Min/Max/Negative) : 124/10/127/0
EQM Samples Running Sum : 0106
EQM Last 10 Readings : 123 39 27 31 40 36 36 34 40 37
SNR Ratio (Last/Min/Max), dB : 37/36/39
TX Non-linear Encoding : OFF
TX Precoding : OFF
TX/RX Constellation Shaping : OFF/OFF
TX Trellis Encoding : 16 state
TX Pre-emphasis : 6
TX/RX state (Max TX/RX, Last TX/RX) : 85H/65H, 67H/65H
Error Correction Status : SABME:T UA:R XID:T,R SYNC
Dual PCM/120 Hz detection : No/Yes
Energy at 3750Hz/Average Energy : 2816/1540
RBS Pattern/Alternating RBS Pattern : 00/00
V.90 Digital Pad/A-law/HighPowerSrv : 0dB/Yes/No
Retrains (Issued/Granted/Fast) : 2/0/18
Renegs (Issued/Granted) : 1/2
Retrans per frame/Frames rejected : 1/127
Total number of REJ sent/received : 255 or more/36
Last Retrain/Reneg reason : Remote initiated a reneg
Last Retrain/Reneg requested : Remote Rate Renegotiation
Minutes Since Last Retrain/Reneg : 15
Disconnect reason : LOCAL REQUEST
Remote Manufacturer/Licensee Code : Conexant/Conexant
Remote Manufacturer's Product Caps : K56Flex, V.90
Remote V.8bis caps (type) : Digital (Server)
Remote V.8bis caps (K56Flex mode) : K56Flex prototype mode not supported
Remote V.8bis caps (K56Flex version): 1.1
Remote K56Flex RAM version supported: 70
Remote Coding used/forced by server : A-law/Yes
Remote controller version number : 0
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
Remote is ITU/K56Flex neg/High IMD : Yes/Yes/No
V.8 bis CRe detected/early : Yes/No
CRe/CRd/CL/MS/ACK/NAK received : Yes/No/Yes/No/Yes/No
V.8bis success/V.8bis neg started : Yes/Yes
Workaround used : RateRenegFailure


Unimodem Diagnostics/W32, version 1.1.0.0, compiled at Mar 14 2002 18:01:05
(c) 2000 Stanislav V. Mekhanoshin (rampitec@tu.spb.ru, 2:5030/172.9@fidonet)
----------------------------------------------------------------------------
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 : 22/16
Estimated noise level, -dBm : 53
TX/RX Negotiation : V.34/V.90 Issue 1 (asymmetric)
TX/RX Symbol Rate : 3200/8000
TX/RX Carrier frequency, Hz : 1920/0
TX data rate (Last/Init) : 14400/14400
RX data rate (Last/Init) : 37333/37333
Temporary carrier loss count : 0
Carrier Rate Re-neg count : 21
Retrains Requested/Granted : 2/0
Protocol/Compression : V.42 LAPM/V.42bis
Error control frame size, bytes: 128
Error control timeouts in TX : 51
Error control NAKs received : 36
Compression dict. size, bytes : 2048
TX/RX flow control : V.24 ckt 106/133 / V.24 ckt 106/133
TX/RX chars sent : 1953007/26918303
TX/RX chars lost (data overrun): 0/0
TX/RX I-Frame count : 70850/209552
TX/RX I-Frame error count : 36/383
Termination Cause : cct108 turned Off

Может быть, можно ещё что-нибудь сделать?

[Technical Support]

Как видите, после "ужимания" скорости передачи до 14400 количество пересогласований, запрошенных удалённым модемом, сильно сократилось (их было всего 2 за почти 2.5 часа. Так держать!

Довольно много перетренировок, случившихся в результате неудачных пересогласований скорости, запрошенных Вашим модемом:

Retrains Issued/Granted/Auto. 2/0/13
Renegs Issued/Granted........ 19/2
FForwards/FBacks/Denied...... 5/16/0

Возможно, что ситуацию удастся улучшить, уменьшив регистр S117 (попробуйте S117=30). Если ситуация на линии ухудшается быстро, то чем быстрее запросите пересогласование, тем выше шансы на его успешное завершение...
_________________
Inpro
Technical Support

[Baklan]

[Technical Support]

Кажется, нужно пояснить работу счётчиков. Счётчики пересогласований (Renegs Issued/Granted) увеличиваются на единичку каждый раз, когда Ваш/удалённый модем запрашивают пересогласование. Если пересогласование неудачно и проходится делать перетренировку, то увеличивается счётчик Retrains/Auto.

Теперь опять посмотрим на статистику:

Retrains Issued/Granted/Auto. 2/0/13
Renegs Issued/Granted........ 19/2

Пересогласований от удалённого модема было всего 2. Даже если оба закончились неудачей, это объясняет 2 автоматических перетренировки из 13. Как минимум 11 из авто-перетренировок были в результате неудачных пересогласований Вашего модема.
_________________
Inpro
Technical Support