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input errors and ignored errors keep increasing on Cisco 7206 VXR G2 DEvice

Output of the Router:

 

ccanbhlr01c72#sh int gi0/1
GigabitEthernet0/1 is up, line protocol is up
  Hardware is MV64460 Internal MAC, address is 0022.0d94.081b (bia 0022.0d94.081b)
  Description: IPMAN Port N2068316R
  Internet address is 10.15.32.238/29
  MTU 1500 bytes, BW 150000 Kbit/sec, DLY 10 usec,
     reliability 255/255, txload 23/255, rxload 10/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Full-duplex, 1000Mb/s, media type is RJ45
  output flow-control is XON, input flow-control is XON
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input 00:00:00, output 00:00:00, output hang never
  Last clearing of "show interface" counters 02:25:30
  Input queue: 0/4096/37/0 (size/max/drops/flushes); Total output drops: 4
  Queueing strategy: random early detection(RED)
  30 second input rate 6338000 bits/sec, 2660 packets/sec
  30 second output rate 13880000 bits/sec, 2617 packets/sec
     30470375 packets input, 2724760352 bytes, 0 no buffer
     Received 7 broadcasts, 0 runts, 0 giants, 0 throttles
     164 input errors, 0 CRC, 0 frame, 0 overrun, 164 ignored   <<<<<<<<<<<<<<<<<<<<<<<<<<,
     0 watchdog, 0 multicast, 0 pause input
     0 input packets with dribble condition detected
     29207000 packets output, 1717988663 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier, 0 pause output
     0 output buffer failures, 0 output buffers swapped out

 

2 REPLIES
New Member

Did you ever find out what

Did you ever find out what was causing the problem?  I also have this issue on two different 7200's going to two different devices.  One connects to a Ciena switch.  The other connects to a Cisco ME-3600X switch.  My show interface outputs are below for both routers.  IP addresses have been removed.  Thanks in advance for any help or insight in to this.

Router 1

GigabitEthernet0/2 is up, line protocol is up
  Hardware is MV64460 Internal MAC, address is 000b.60db.e81a (bia 000b.60db.e81a)
  Description: Transit: TW Telecom [1Gbit] (AS4323)
  Internet address is xxx.xxx.xxx.xxx/30
  MTU 1500 bytes, BW 300000 Kbit/sec, DLY 10 usec,
     reliability 255/255, txload 15/255, rxload 3/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Full-duplex, 1000Mb/s, media type is RJ45
  output flow-control is XON, input flow-control is unsupported
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input 00:00:00, output 00:00:00, output hang never
  Last clearing of "show interface" counters 38w1d
  Input queue: 0/75/0/1206 (size/max/drops/flushes); Total output drops: 49
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 3550000 bits/sec, 1032 packets/sec
  5 minute output rate 18581000 bits/sec, 4505 packets/sec
     570964178 packets input, 654288756 bytes, 0 no buffer
     Received 60342 broadcasts, 0 runts, 280 giants, 0 throttles
     60517 input errors, 0 CRC, 0 frame, 0 overrun, 60237 ignored
     0 watchdog, 11526 multicast, 0 pause input
     0 input packets with dribble condition detected
     36753415 packets output, 2867914629 bytes, 0 underruns
     2 output errors, 0 collisions, 1 interface resets
     0 unknown protocol drops
     0 babbles, 0 late collision, 0 deferred
     2 lost carrier, 0 no carrier, 0 pause output
     0 output buffer failures, 0 output buffers swapped out

Router 2

GigabitEthernet0/2 is up, line protocol is up
  Hardware is MV64460 Internal MAC, address is 0015.c674.ba1a (bia 0015.c674.ba1a)
  Description: Transit: HE [1Gbit] (AS6939)
  Internet address is xxx.xxx.xxx.xxx/30
  MTU 1500 bytes, BW 100000 Kbit/sec, DLY 10 usec,
     reliability 255/255, txload 1/255, rxload 13/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Full-duplex, 1000Mb/s, media type is RJ45
  output flow-control is XON, input flow-control is unsupported
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input 00:00:00, output 00:00:00, output hang never
  Last clearing of "show interface" counters 4d05h
  Input queue: 0/75/0/13 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 5253000 bits/sec, 3377 packets/sec
  5 minute output rate 11000 bits/sec, 5 packets/sec
     1086983128 packets input, 1645025549 bytes, 0 no buffer
     Received 2017 broadcasts, 0 runts, 0 giants, 0 throttles
     147 input errors, 0 CRC, 0 frame, 0 overrun, 147 ignored
     0 watchdog, 183798 multicast, 0 pause input
     0 input packets with dribble condition detected
     166528483 packets output, 3753439740 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 unknown protocol drops
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier, 0 pause output
     0 output buffer failures, 0 output buffers swapped out

Cisco Employee

Joe

Joe

Input errors (Ignores/overruns) are platform/hardware/interface limitation. There is no way to make them go away. The good news is that it is seen such slow numbers that there is virtually no odds of having any impact on service interruption.

Having said that, there is so much information about this. Some folks tend to believe that whatever problem they are having is because of these (ignore/overrun). Please don't fall for it.

Kind regards ... Palani

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