Cisco 3825 с платой NM-30DM= подключена к ATC NEC через NM-1CE1T1_PRI, для работы пула Dial-up. Канал поднят, модемы подключаются иногда, если доходит до авторизации то она проходит или сразу или долго висит окошко, поднимается линк, но данные между пользователем и cisco то идут то не идут, даже ping показывает большой timeout. Debug modem показывает что идут постоянные RETRAIN. Вместе с debug isdn показывают интересную картину - ниже. При этом ошибка S7_T203_EXPIRY: Lost communication with remote. идет постоянно каждые 10 сек, не зависимо есть ли кто на линии или нет.Если ни кого на линии нет:
May 8 11:39:27: ISDN Se1/0:15 Q921: S7_T203_EXPIRY: Lost communication with remote.
May 8 11:39:27: ISDN Se1/0:15 Q921: Net TX -> RRp sapi=0 tei=0 nr=3
May 8 11:39:27: ISDN Se1/0:15 Q921: Net RX <- RRf sapi=0 tei=0 nr=5
May 8 11:39:37: ISDN Se1/0:15 Q921: S7_T203_EXPIRY: Lost communication with remote.
May 8 11:39:37: ISDN Se1/0:15 Q921: Net TX -> RRp sapi=0 tei=0 nr=3
May 8 11:39:37: ISDN Se1/0:15 Q921: Net RX <- RRf sapi=0 tei=0 nr=5
May 8 11:39:47: ISDN Se1/0:15 Q921: S7_T203_EXPIRY: Lost communication with remote.
May 8 11:39:47: ISDN Se1/0:15 Q921: Net TX -> RRp sapi=0 tei=0 nr=3
May 8 11:39:47: ISDN Se1/0:15 Q921: Net RX <- RRf sapi=0 tei=0 nr=5
May 8 11:39:57: ISDN Se1/0:15 Q921: S7_T203_EXPIRY: Lost communication with remote.
и так постоянно
если кто то на линии Dial-up
May 8 12:38:57: Modem 2/15 Mica: in modem state STEADY
May 8 12:38:57: Modem 2/15 Mica: Retrained to 53333/24000 (Tx/Rx)
May 8 12:38:58: Modem 2/15 Mica: in modem state SS_SHIFTINGSPEED
May 8 12:39:01: Modem 2/15 Mica: in modem state SS_RETRAINING
May 8 12:39:06: ISDN Se1/0:15 Q921: S7_T203_EXPIRY: Lost communication with remote.
May 8 12:39:06: ISDN Se1/0:15 Q921: Net TX -> RRp sapi=0 tei=0 nr=11
May 8 12:39:06: ISDN Se1/0:15 Q921: Net RX <- RRf sapi=0 tei=0 nr=18
May 8 12:39:10: Modem 2/15 Mica: in modem state STEADY
May 8 12:39:10: Modem 2/15 Mica: Retrained to 31200/31200 (Tx/Rx)
May 8 12:39:16: ISDN Se1/0:15 Q921: S7_T203_EXPIRY: Lost communication with remote.
May 8 12:39:16: ISDN Se1/0:15 Q921: Net TX -> RRp sapi=0 tei=0 nr=11
May 8 12:39:16: ISDN Se1/0:15 Q921: Net RX <- RRf sapi=0 tei=0 nr=18
May 8 12:39:17: Modem 2/15 Mica: in modem state SS_RETRAINING
May 8 12:39:26: Modem 2/15 Mica: in modem state STEADY
May 8 12:39:26: Modem 2/15 Mica: Retrained to 28800/28800 (Tx/Rx)
May 8 12:39:26: ISDN Se1/0:15 Q921: S7_T203_EXPIRY: Lost communication with remote.
May 8 12:39:26: ISDN Se1/0:15 Q921: Net TX -> RRp sapi=0 tei=0 nr=11
May 8 12:39:26: ISDN Se1/0:15 Q921: Net RX <- RRf sapi=0 tei=0 nr=18
c3825#show isdn status serial 1/0:15
Global ISDN Switchtype = primary-net5
ISDN Serial1/0:15 interface
******* Network side configuration *******
dsl 1, interface ISDN Switchtype = primary-net5
Layer 1 Status:
ACTIVE
Layer 2 Status:
TEI = 0, Ces = 1, SAPI = 0, State = MULTIPLE_FRAME_ESTABLISHED
Layer 3 Status:
0 Active Layer 3 Call(s)
Active dsl 1 CCBs = 0
The Free Channel Mask: 0xFFFF7FFF
Number of L2 Discards = 0, L2 Session ID = 0
Total Allocated ISDN CCBs = 0
c3825#show control e1 1/0
E1 1/0 is up.
Applique type is Channelized E1 - balanced
No alarms detected.
alarm-trigger is not set
Framing is CRC4, Line Code is HDB3, Clock Source is Internal.
Module type is Channelized E1/T1 PRI
Version info Firmware: 0000001D, FPGA: 0
Hardware revision is 0.0 , Software revision is 29
Protocol revision is 1
number of CLI resets is 1
Last clearing of alarm counters 18:07:31
receive remote alarm : 0,
transmit remote alarm : 0,
receive AIS alarm : 0,
transmit AIS alarm : 0,
loss of frame : 0,
loss of signal : 0,
Loopback test : 0,
transmit AIS in TS 16 : 0,
receive LOMF alarm : 0,
transmit LOMF alarm : 0,
MIB data updated every 10 seconds.
Data in current interval (448 seconds elapsed):
0 Line Code Violations, 2 Path Code Violations
c3825# show inter ser 1/0:15
Serial1/0:15 is up, line protocol is up (spoofing)
Hardware is M32X with CSU/DSU
MTU 1500 bytes, BW 64 Kbit, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation HDLC, loopback not set
Last input 00:00:08, output 00:00:08, output hang never
Last clearing of "show interface" counters 18:07:48
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
6543 packets input, 26340 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
6551 packets output, 26340 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions
Timeslot(s) Used:16, Transmitter delay is 0 flags
Части Конфига:
modem country mica russia
controller E1 1/0
clock source internal
pri-group timeslots 1-31
!
interface Serial1/0:15
no ip address
isdn switch-type primary-net5
isdn protocol-emulate network
isdn incoming-voice modem
no keepalive
no fair-queue
no cdp enable
!
interface Group-Async0
ip unnumbered GigabitEthernet0/1
encapsulation ppp
ip tcp header-compression
no ip mroute-cache
async mode dedicated
peer default ip address pool pool30
compress mppc
ppp authentication pap
group-range 2/0 2/29
!
line 2/0 2/29
modem Dialin
modem autoconfigure type mica
!
