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Cisco 3800 E1 problem crc erros . . .

 
 
Manuel_Mex Manuel_Mex is offline
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Join Date: Oct 2007
Posts: 1
 
      10-22-2007
we have two Cisco router 3800 series in one we got 2 E1s and the other is for redundancy the principal is reporting CRC errors i reset the interface counters 24 houars ago (see below).

The device at the other end(the carrier ) of the link is not reporting any thats what they say

1when i ping to an other location i lost a few pakets but if the other locations pings to this locations they dont lost even 1
2 I already change the wic, cables
3 i set a fisical loop for the carrier and for my equipment
the carrier say is not his problem
and i did not see any crc
4 im going to replace the router (iam not sure its going to work )

Any assistance, suggestions are welcomed.
Thanks
sorry for my english

show interface serial 0/0/1:0
Serial0/0/1:0 is up, line protocol is up
Hardware is GT96K Serial
Description:
Internet address is
MTU 1500 bytes, BW 1984 Kbit, DLY 20000 usec,
reliability 255/255, txload 8/255, rxload 73/255
Encapsulation PPP, LCP Open
Open: IPCP, loopback not set
Keepalive set (2 sec)
Last input 00:00:01, output 00:00:00, output hang never
Last clearing of "show interface" counters 23:55:51
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 1529
Queueing strategy: Class-based queueing
Output queue: 0/1000/96/1318 (size/max total/threshold/drops)
Conversations 0/15/256 (active/max active/max total)
Reserved Conversations 1/1 (allocated/max allocated)
Available Bandwidth 199 kilobits/sec
5 minute input rate 569000 bits/sec, 103 packets/sec
5 minute output rate 66000 bits/sec, 67 packets/sec
9762939 packets input, 3771997026 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
2192 input errors, 1222 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
7521300 packets output, 1386110262 bytes, 0 underruns
0 output errors, 0 collisions, 4294967292 interface resets
0 output buffer failures, 0 output buffers swapped out
8 carrier transitions
Timeslot(s) Used:1-31, SCC: 1, Transmitter delay is 0 flags

Thanks
 

Last edited by Manuel_Mex; 10-22-2007 at 08:10 PM..
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Helenzhou Helenzhou is offline
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Join Date: Jun 2008
Posts: 15
 
      06-13-2008
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anilkarthik anilkarthik is offline
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Join Date: Jul 2008
Location: india
Posts: 4
 
      07-28-2008
hi
sorry for my english

1 what type of connectivity u r using that is u r input is in serial then you will be having (modam) in that tx and rx will be there tr=transimit rx=receive

2 when u r ping to other net work u get packet loss and other network are not getting packet loss there could be tx problem and because of that u can get crc errore and input errors first ask u r isp to reslove crc error

regards
karthik

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