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bankadminFlag for United States of America asked on

I need to look and see if my cisco routers are logging any errors.

I have t-1 lines with cisco routers at each end of the line. We are seeing very slow speeds on the connection. I had the phone co. come out and check there equipment they said that they are getting an error light on there T-1 cards when my routers are plugged into it but when they plug there equipment on the T-1 line the error lights go away. They called and asked me to look for errors on my routers. I have never looked for errors on a cisco router but I am familiar with the command line of a cisco router. Any advice on what errors to look for and how to bring them up would be greatly appreciated

Thnaks
Routers

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bankadmin

8/22/2022 - Mon
ASKER CERTIFIED SOLUTION
belowzerotech

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ASKER
bankadmin

Ok I did that below is the output I recieved Is "47645 output errors" do you think that is the root of the problem or do you know that to be normal?

Thanks

FastEthernet0 is up, line protocol is up                                        
  Hardware is PQUICC_FEC, address is 00b0.c288.1f52 (bia 00b0.c288.1f52)                                                                        
  Description: connected to Backus Fasthub                                      
  Internet address is 10.3.254.254/16
  MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Half-duplex, 100Mb/s, 100BaseTX/FX
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input 00:00:45, output 00:00:00, 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 29000 bits/sec, 38 packets/sec
  5 minute output rate 80000 bits/sec, 35 packets/sec
     387439039 packets input, 151284428 bytes
     Received 686618 broadcasts, 0 runts, 0 giants, 0 throttles
     30 input errors, 3 CRC, 0 frame, 27 overrun, 0 ignored
     0 watchdog, 0 multicast
     0 input packets with dribble condition detected
     323703186 packets output, 3183057181 bytes, 0 underruns
     47645 output errors, 77135 collisions, 4 interface resets
     0 babbles, 1 late collision, 0 deferred
     3136 lost carrier, 0 no carrier
     0 output buffer failures, 0 output buffers swapped out
ASKER
bankadmin

Actually I did the same thing on the router on the other side of the T-1 and its reporting more errors than the first one I did.

FastEthernet0 is up, line protocol is up                                        
  Internet address is 10.2.254.254/16
  MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Half-duplex, 100Mb/s, 100BaseTX/FX
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input 00:00:13, output 00:00:00, 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 26000 bits/sec, 33 packets/sec
  5 minute output rate 65000 bits/sec, 29 packets/sec
     145963865 packets input, 3114722361 bytes
     Received 192159 broadcasts, 0 runts, 0 giants, 0 throttles
     12 input errors, 2 CRC, 0 frame, 6 overrun, 0 ignored
     0 watchdog, 0 multicast
     0 input packets with dribble condition detected
     132151167 packets output, 2207475635 bytes, 0 underruns
     198864 output errors, 875466 collisions, 5 interface resets
     0 babbles, 2 late collision, 0 deferred
     69 lost carrier, 0 no carrier
     0 output buffer failures, 0 output buffers swapped out
ASKER
bankadmin

Those two outputs are ethernet and I should have posted the serial since that is what is connected to the T-1 line (Im mentally challenged today). So here is the first one

Serial1 is up, line protocol is up c1700              Show c1700 inf
  Hardware is PQUICC with Fractional T1 CSU/DSU  
  cdp                CDP information      
  Description: T1 to Hackensackclass-map          Show QoS Cla
  Internet address is 10.103.0.4/16        
  clock              Disp
  MTU 1500 bytes, BW 1544 K                        

  Queueing strategy: fifo                  
  dhcp
  Output queue 0/40, 1008 drops; input queue 0/75, 0 drops                                                          
  5 minute input rate 62000 bits/sec, 24 packets/secfor port adapters/modules                          
  5 minute output rate 22000 bits/sec, 28 packets/secer             Dialer parameters and statistics      
     323428568 packets input, 4130499368 bytes, 0 no buffer         Shows Dnsix/DMDP information                      
     Received 5864478 broadcasts, 0 ru          atm-                      
     405359004 packets output, 1712399494 bytes, 0 underruns                                    
  flash:             di
     0 output errors, 0 collisions, 969 interface resets                                                  
  fra
     0 output buffer failures, 0 output buffers swapped out                      
  history            Display the se
     31 carrier transitions                          
  Hardware is PQUICC with Fractional T1 CSU/DSU
  Description: T1 to Hackensack
  Internet address is 10.103.0.4/16
  MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,
     reliability 255/255, txload 4/255, rxload 11/255
  Encapsulation HDLC, 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 never
  Queueing strategy: fifo
  Output queue 0/40, 1008 drops; input queue 0/75, 0 drops
  5 minute input rate 72000 bits/sec, 34 packets/sec
  5 minute output rate 26000 bits/sec, 39 packets/sec
     323436297 packets input, 4132627820 bytes, 0 no buffer
     Received 5864503 broadcasts, 0 runts, 12 giants, 0 throttles
     4097168 input errors, 39205 CRC, 261148 frame, 0 overrun, 0 ignored, 379680
5 abort
     405368231 packets output, 1713157443 bytes, 0 underruns
     0 output errors, 0 collisions, 969 interface resets
     0 output buffer failures, 0 output buffers swapped out
     31 carrier transitions
     DCD=up  DSR=up  DTR=up  RTS=up  CTS=up
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ASKER
bankadmin

and here is the second

Hardware is PQUICC with Fractional T1 CSU/DSU
  Description: T1 to Backus
  Internet address is 10.103.0.3/16
  MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,
     reliability 255/255, txload 12/255, rxload 4/255
  Encapsulation HDLC, loopback not set
  Keepalive set (10 sec)
  Last input 00:00:01, output 00:00:00, 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 26000 bits/sec, 38 packets/sec
  5 minute output rate 74000 bits/sec, 33 packets/sec
     188117508 packets input, 1230071527 bytes, 0 no buffer
     Received 2085842 broadcasts, 30 runts, 2 giants, 0 throttles
     4890058 input errors, 61269 CRC, 294593 frame, 0 overrun, 0 ignored, 453419
5 abort
     154874318 packets output, 249856671 bytes, 0 underruns
     0 output errors, 0 collisions, 387 interface resets
     0 output buffer failures, 0 output buffers swapped out
     7 carrier transitions
     DCD=up  DSR=up  DTR=up  RTS=up  CTS=up
ASKER
bankadmin

Thanks for the commands I will probably post a new question asking for help reading the output to make sure Im understnding correctly