Имеем
cisco 2611хм <--> FlexGain FG-PAM-DOC-E1_N64 <--2 пр. линия--> FlexGain FG-PAM-DOC-E1_N64 <--> cisco 1721
на 2611:
interface Serial0/0
description "ххххх"
no ip address
encapsulation frame-relay
frame-relay intf-type dce
!
interface Serial0/0.1 point-to-point
ip address 192.168.2.249 255.255.255.252
frame-relay interface-dlci 120
на 1621:
interface Serial0
description "yyyyy"
no ip address
encapsulation frame-relay
!
interface Serial0.1 point-to-point
ip address 192.168.2.250 255.255.255.252
frame-relay interface-dlci 120
Модем что ближе к 2611 мастер, другой слэйв, по синхронизации
При использовании вместо 2ух проводной линии простой тел провод длиной в метр всё работает, как только перемещаю на транзит длиной 7 км, то вначала протокол поднимается, потом падает, и баста.
Feb 26 18:16:32: %LINK-3-UPDOWN: Interface Serial0/0, changed state to up
Feb 26 18:16:48: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0, changed state to
up
Feb 26 18:17:18: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0, changed state to
down
Причем сигнал шум нормальный и модемы между собой вяжутся без проблем.
Вот состояние интерфейса
Serial0/0 is up, line protocol is down
Hardware is PowerQUICC Serial
Description: "Flex link to MTTC"
MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation FRAME-RELAY, loopback not set
Keepalive set (10 sec)
LMI enq sent 0, LMI stat recvd 0, LMI upd recvd 0
LMI enq recvd 0, LMI stat sent 0, LMI upd sent 0, DCE LMI down
LMI DLCI 1023 LMI type is CISCO frame relay DCE
Broadcast queue 0/64, broadcasts sent/dropped 0/0, interface broadcasts 0
Last input 4d00h, output 01:37:59, output hang never
Last clearing of "show interface" counters 00:05:18
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: weighted fair
Output queue: 0/1000/64/0 (size/max total/threshold/drops)
Conversations 0/1/256 (active/max active/max total)
Reserved Conversations 0/0 (allocated/max allocated)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 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
0 packets output, 0 bytes, 0 underruns
0 output errors, 0 collisions, 9 interface resets
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up
ПОМОГИТЕ ПЛИЗ, МОЖЕТ КТО СТАЛКИВАЛСЯ !!!!!!!!!!!!