Multilink interface taking multiple input, frame and overrun errors

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Hello,


We have a Cisco 2811 running IOS version 15.0M(1).  We have been noticing multiple input, frame, overrun errors on the multilink interface but none on the two serial interfaces.  I'll display some commands I issued below.  Can you tell me if this is a hardware, software or provider issue?


NY2811#sh int multilink 1

Multilink1 is up, line protocol is up

  Hardware is multilink group interface

  Description: Primary WAN link

  Internet address is x.x.x.x/30

  MTU 1500 bytes, BW 3072 Kbit/sec, DLY 20000 usec,

     reliability 255/255, txload 40/255, rxload 39/255

  Encapsulation PPP, LCP Open, multilink Open

  Open: IPCP, loopback not set

  Keepalive set (10 sec)

  DTR is pulsed for 2 seconds on reset

  Last input 00:00:00, output never, output hang never

  Last clearing of "show interface" counters 1d00h

  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0

  Queueing strategy: fifo

  Output queue: 0/40 (size/max)

  5 minute input rate 478000 bits/sec, 284 packets/sec

  5 minute output rate 487000 bits/sec, 282 packets/sec

     12825903 packets input, 2843869655 bytes, 0 no buffer

     Received 0 broadcasts, 0 runts, 0 giants, 0 throttles

     108796 input errors, 0 CRC, 107987 frame, 809 overrun, 0 ignored, 0 abort

     12443765 packets output, 2655074326 bytes, 0 underruns

     0 output errors, 0 collisions, 1 interface resets

     0 unknown protocol drops

     0 output buffer failures, 0 output buffers swapped out

     0 carrier transitions




NY2811#sh int s0/0/0

Serial0/0/0 is up, line protocol is up

  Hardware is GT96K with integrated T1 CSU/DSU

  Description: First T1

  MTU 1500 bytes, BW 1536 Kbit/sec, DLY 20000 usec,

     reliability 255/255, txload 25/255, rxload 27/255

  Encapsulation PPP, LCP Open, multilink Open

  Link is a member of Multilink bundle Multilink1, 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 1d00h

  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0

  Queueing strategy: fifo

  Output queue: 0/40 (size/max)

  5 minute input rate 163000 bits/sec, 82 packets/sec

  5 minute output rate 155000 bits/sec, 80 packets/sec

     6461925 packets input, 1503757355 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

     6241892 packets output, 1329049826 bytes, 0 underruns

     0 output errors, 0 collisions, 177 interface resets

     0 unknown protocol drops

     0 output buffer failures, 0 output buffers swapped out

     0 carrier transitions

     DCD=up  DSR=up  DTR=up  RTS=up  CTS=up




NY2811#sh int s0/1/0

Serial0/1/0 is up, line protocol is up

  Hardware is GT96K with integrated T1 CSU/DSU

  Description: Second T1

  MTU 1500 bytes, BW 1536 Kbit/sec, DLY 20000 usec,

     reliability 255/255, txload 23/255, rxload 23/255

  Encapsulation PPP, LCP Open, multilink Open

  Link is a member of Multilink bundle Multilink1, 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 1d00h

  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0

  Queueing strategy: fifo

  Output queue: 0/40 (size/max)

  5 minute input rate 144000 bits/sec, 74 packets/sec

  5 minute output rate 139000 bits/sec, 73 packets/sec

     6463749 packets input, 1503783785 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

     6243632 packets output, 1329901349 bytes, 0 underruns

     0 output errors, 0 collisions, 178 interface resets

     0 unknown protocol drops

     0 output buffer failures, 0 output buffers swapped out

     0 carrier transitions

     DCD=up  DSR=up  DTR=up  RTS=up  CTS=up

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Joshua Senft Wed, 09/25/2013 - 14:19
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Can you please post the interface configurations as well for each of the serial as well as the multilink interfaces? Also, provide the output of 'show ppp multi'. Thanks.

cherlerle Tue, 03/11/2014 - 09:19
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Hi!

 

I have the same problem with Multilink input errors, can you share the solution that you implemented please?

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