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Easy Cisco Question, Cisco Noob

Posted on 2012-03-12
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Last Modified: 2013-04-10
Have 2 routers Cisco 2821

Site A  serial0/0/0:1 10.52.1.1

Site B serial? T1 as well 10.52.1.4

ISP is pointing that the current extremely degraded bandwidth could be caused by our T1 cards.  We have packet loss 6-7%



Please give Very simple commands, steps, ext and explain well.

I want to check to see if there are any errors in the cisco concerning the T1 cards... I'm a Windows Administrator, I really do not no much about the router.  I count it great that I can telnet into it even.

Thanks in advance!
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Question by:NiceShotMan
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Author Comment

by:NiceShotMan
ID: 37710766
Maybe this is it?

10.52.1.1:

======================
Serial0/0/0:1 is up, line protocol is up
  Hardware is GT96K Serial
  Internet address is 10.52.1.1/24
  MTU 1500 bytes, BW 1536 Kbit, DLY 20000 usec,
     reliability 146/255, txload 8/255, rxload 1/255
  Encapsulation PPP, LCP Open
  Open: CDPCP, IPCP, loopback not set
  Keepalive set (10 sec)
  Last input 00:00:00, output 00:00:00, output hang never
  Last clearing of "show interface" counters 5w4d
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 10724
  Queueing strategy: weighted fair
  Output queue: 0/1000/64/10626 (size/max total/threshold/drops)
     Conversations  0/39/256 (active/max active/max total)
     Reserved Conversations 0/0 (allocated/max allocated)
     Available Bandwidth 1152 kilobits/sec
  5 minute input rate 9000 bits/sec, 10 packets/sec
  5 minute output rate 48000 bits/sec, 8 packets/sec
     44048762 packets input, 2214431465 bytes, 0 no buffer
     Received 0 broadcasts, 0 runts, 34 giants, 0 throttles
     18653154 input errors, 18652849 CRC, 99209 frame, 59145 overrun, 0 ignored,
 107360 abort
     43975453 packets output, 4060012994 bytes, 0 underruns
     0 output errors, 0 collisions, 2 interface resets
     0 output buffer failures, 0 output buffers swapped out
     23 carrier transitions
  Timeslot(s) Used:1-24, SCC: 0, Transmitter delay is 0 flags
=========================================

10.52.1.4

============================================

Serial0/0/0:1 is up, line protocol is up
  Hardware is GT96K Serial
  Internet address is 10.52.1.4/24
  MTU 1500 bytes, BW 1536 Kbit, DLY 20000 usec,
     reliability 255/255, txload 3/255, rxload 11/255
  Encapsulation PPP, LCP Open
  Open: CDPCP, IPCP, loopback not set
  Keepalive set (10 sec)
  Last input 00:00:00, output 00:00:00, output hang never
  Last clearing of "show interface" counters 00:45:55
  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  0/4/256 (active/max active/max total)
     Reserved Conversations 0/0 (allocated/max allocated)
     Available Bandwidth 1152 kilobits/sec
  5 minute input rate 64000 bits/sec, 12 packets/sec
  5 minute output rate 25000 bits/sec, 14 packets/sec
     52382 packets input, 13396246 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
     58269 packets output, 11404590 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:1-24, SCC: 0, Transmitter delay is 0 flags


=====================================

Advise on if these actually indicate an issue with the card?

or router?
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Expert Comment

by:Don Johnston
ID: 37712597
Hard to say if it's the card or not, but I would be talking to your provider about this end of the circuit. Something is causing these problems.

10.52.1.1:
======================
Serial0/0/0:1 is up, line protocol is up
  Hardware is GT96K Serial
  Internet address is 10.52.1.1/24
  MTU 1500 bytes, BW 1536 Kbit, DLY 20000 usec,
     reliability 146/255, txload 8/255, rxload 1/255
  Encapsulation PPP, LCP Open
  Open: CDPCP, IPCP, loopback not set
  Keepalive set (10 sec)
  Last input 00:00:00, output 00:00:00, output hang never
  Last clearing of "show interface" counters 5w4d
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 10724
  Queueing strategy: weighted fair
  Output queue: 0/1000/64/10626 (size/max total/threshold/drops)
     Conversations  0/39/256 (active/max active/max total)
     Reserved Conversations 0/0 (allocated/max allocated)
     Available Bandwidth 1152 kilobits/sec
  5 minute input rate 9000 bits/sec, 10 packets/sec
  5 minute output rate 48000 bits/sec, 8 packets/sec
     44048762 packets input, 2214431465 bytes, 0 no buffer
     Received 0 broadcasts, 0 runts, 34 giants, 0 throttles
     18653154 input errors, 18652849 CRC, 99209 frame, 59145 overrun, 0 ignored,
 107360 abort
     43975453 packets output, 4060012994 bytes, 0 underruns
     0 output errors, 0 collisions, 2 interface resets
     0 output buffer failures, 0 output buffers swapped out
    23 carrier transitions
  Timeslot(s) Used:1-24, SCC: 0, Transmitter delay is 0 flags
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Author Comment

by:NiceShotMan
ID: 37712604
We swapped the card on the 10.52.1.1 side and same errors.

I'm having to say I'm doubtful but still wanted to ask this question.  Could a bad T1 on the 10.52.1.4 side cause errors like this on the 10.52.1.1 side?

Checking with the provider and they will be troubleshooting tomorrow.  There is certainly a good bit of equipment between the 2.

Any other suggestions or step by step tests would be very welcome.
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Accepted Solution

by:
Don Johnston earned 500 total points
ID: 37712614
Could a bad T1 on the 10.52.1.4 side cause errors like this on the 10.52.1.1 side?

Anything is possible, but unlikely.  I can't think of a way that a problem on one end would cause carrier transitions on the other.

I'd wait and see what the carrier has to say.
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Author Closing Comment

by:NiceShotMan
ID: 39066258
Carrier issue
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