Cisco router, Line protocol down
Jeg arbejder med to Cisco 2600 routers, som er forbundet via et serial kabel, på port Serial0/0.Efter reboot osv af routeren, siger den Serial0/0 is up, Line protocol is up.
-så går der ca 5 sekunder, så skifter Line protocol status til Down.
Hvad kan der være galt?
-begge ender er configureret stort set ens, dog er der naturligvis forskel på IP-adresser, og det er naturligvis kun den ene ende der er sat clock rate på.
her er en kopi af outputtet fra
"Show Interface Serial0/0"
20:27:51: %LINK-3-UPDOWN: Interface Serial0/0, changed state to up
20:28:02: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0, changed sta
te to up
Router#sh interface serial0/0
Serial0/0 is up, line protocol is up
Hardware is PowerQUICC Serial
Internet address is 192.168.1.2/24
MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,
reliablility 255/255, txload 1/255, rxload 1/255
Encapsulation FRAME-RELAY, loopback not set, keepalive set (10 sec)
LMI enq sent 41, LMI stat recvd 0, LMI upd recvd 0, DTE LMI up
LMI enq recvd 0, LMI stat sent 0, LMI upd sent 0
LMI DLCI 1023 LMI type is CISCO frame relay DTE
FR SVC disabled, LAPF state down
Broadcast queue 0/64, broadcasts sent/dropped 0/0, interface broadcasts 0
Last input never, output never, output hang never
Last clearing of "show interface" counters never
Queueing strategy: fifo
Output queue 0/40, 0 drops; input queue 0/75, 0 drops
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
2178 packets output, 134549 bytes, 0 underruns
0 output errors, 0 collisions, 2575 interface resets
0 output buffer failures, 0 output buffers swapped out
517 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up
Router#
20:28:22: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0, changed state to down
som det kan ses, skifter den umiddelbart efter til Down :-(
-jeg er ret lost :(
