Подключена потоком E1 к ATC NEC NEAX, работала более пол года, число успешных соединений было 92%, последние 5 дней возникает проблема подключения к пулу, модемы не договариваютс о скорости, или договариваются но висит проверка имени и пароля. Статистика одинакова на всех модемах. Если подключается, то передача данных идет без ошибок.Cisco заземлена через провод питания. Пробовали менять прошивку с c3825-spservicesk9-mz.123-11.T5.bin на 123-14.T7 ситуация не изменяется.
controller E1 1/0
pri-group timeslots 1-31
!
interface Serial1/0:15
no ip address
no logging event link-status
isdn switch-type primary-net5
isdn protocol-emulate network
isdn incoming-voice modem
no keepalive
no fair-queue
no cdp enable
!
line 2/0 2/29
modem Dialin
modem autoconfigure type mica
interface Group-Async0
ip unnumbered GigabitEthernet0/1
ip access-group 100 in
ip access-group 100 out
ip verify unicast reverse-path
encapsulation ppp
ip tcp header-compression
no ip mroute-cache
no logging event link-status
dialer in-band
dialer idle-timeout 1800 either
dialer-group 1
async mode dedicated
peer default ip address pool digital-mica-modem-pool
compress mppc
ppp authentication pap
group-range 2/0 2/29
!
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 00:00:03, output 00:00:03, output hang never
Last clearing of "show interface" counters never
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
5756 packets input, 49523 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
1 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
7199 packets output, 45208 bytes, 0 underruns
0 output errors, 0 collisions, 1 interface resets
0 output buffer failures, 0 output buffers swapped out
1 carrier transitions
Timeslot(s) Used:16, Transmitter delay is 0 flags
c3825#show contr e1
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 Line.
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 0
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 (68 seconds elapsed):
0 Line Code Violations, 0 Path Code Violations
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
Total Data (last 38 15 minute intervals):
0 Line Code Violations, 37 Path Code Violations,
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins,
37 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 6 Unavail Secs