12-20-2006 05:43 AM - edited 03-03-2019 03:06 PM
Hello! (excuse for my english :-) )
I have a problem with a e1 connection
Router A :
Router cisco 2811 with a VWIC-2MFT-G703
Configuration:
controller E1 0/0/0
channel-group 0 unframed
interface Serial0/0/0:0
ip address 172.24.234.27 255.255.255.248
encapsulation ppp
show int serial 0/0/0:0
Serial0/0/0:0 is up, line protocol is down
Hardware is GT96K Serial
Internet address is 172.24.234.27/29
MTU 1500 bytes, BW 2048 Kbit, DLY 20000 usec,
reliability 205/255, txload 1/255, rxload 1/255
Encapsulation PPP, LCP REQsent, loopback not set
Keepalive set (10 sec)
Last input never, output 00:00:01, output hang never
Last clearing of "show interface" counters 00:06:43
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)
Available Bandwidth 1536 kilobits/sec
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, 37 giants, 0 throttles
85 input errors, 85 CRC, 14 frame, 10 overrun, 0 ignored, 43 abort
75 packets output, 1050 bytes, 0 underruns
0 output errors, 0 collisions, 7 interface resets
0 output buffer failures, 0 output buffers swapped out
3 carrier transitions
Timeslot(s) Used: UNFRAMED, SCC: 0, Transmitter delay is 0 flags
Router B :
Router cisco 2620 with a WIC 2T
interface Serial0/0
description "Puerto WAN ARUCAS"
bandwidth 2048
ip address 172.24.234.26 255.255.255.248
no ip proxy-arp
encapsulation ppp
Show int serial 0/0:
Serial0/0 is up, line protocol is down
Hardware is PowerQUICC Serial
Description: "Puerto WAN ARUCAS"
Internet address is 172.24.234.26/29
MTU 1500 bytes, BW 2048 Kbit, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation PPP, LCP Listen, loopback not set
Keepalive set (10 sec)
Last input never, output 00:00:04, output hang never
Last clearing of "show interface" counters 00:30:41
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)
Available Bandwidth 1536 kilobits/sec
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, 19 giants, 0 throttles
21 input errors, 0 CRC, 1 frame, 0 overrun, 0 ignored, 20 abort
100 packets output, 1400 bytes, 0 underruns
0 output errors, 0 collisions, 25 interface resets
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up
Really i don?t know the reason for the protocol down,
I make test with diferent clock line configuration, but, always the same result "protocol down"
Help!!! ideas!!!
thank!!!
David Vicente Martinez
Solved! Go to Solution.
12-20-2006 05:51 AM
Is the line bouncing or has it been down for a steady period of time? I see that the reliability is low on router {reliability 205/255}. Let me know and I should be able to provide an answer. Have a great day!!!
12-20-2006 05:51 AM
Is the line bouncing or has it been down for a steady period of time? I see that the reliability is low on router {reliability 205/255}. Let me know and I should be able to provide an answer. Have a great day!!!
12-20-2006 07:02 AM
the serial interface all the time is up.
12-20-2006 09:40 PM
Hi David
The serial interface on Router A is showing down and because of which the reliability is also poor which is well pointed out by other poster.
You need to check the physical link and make sure its error free...
regds
12-20-2006 11:48 PM
Hi!
Router A
Controler E1 0/0/0
line-termination 120-ohm
(the reliability up to 255)
Router B
Serial 0/0
invert txclock
Yes! works!!!
Thank you / Gracias a todos.
Regds
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