We help IT Professionals succeed at work.
Get Started

Cisco 2911 Overrun

amigan_99 asked
Last Modified: 2016-03-02
I am running a Cisco 2911 and as more people came into the new office - I am seeing input errors which are "overrun" errors. It looks like the port negotiated ok to Gig/Auto. Any thought what the issue could be?

oc-c2911-1#sho int gi 0/0
GigabitEthernet0/0 is up, line protocol is up
  Hardware is CN Gigabit Ethernet, address is 00f2.8b5a.daa8 (bia 00f2.8b5a.daa8)
  Description: PrimaryWANDesc_$ETH-LAN$ETH-SW-LAUNCH$INTF-INFO-GE 0/0$
  Internet address is xxxxxxxxx210/26
  MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
     reliability 255/255, txload 1/255, rxload 3/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Full Duplex, 1Gbps, media type is RJ45
  output flow-control is unsupported, 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 never
  Input queue: 1/75/0/56 (size/max/drops/flushes); Total output drops: 5
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 12955000 bits/sec, 1639 packets/sec
  5 minute output rate 1893000 bits/sec, 1072 packets/sec
     3103345 packets input, 3287602329 bytes, 0 no buffer
     Received 154085 broadcasts (0 IP multicasts)
     0 runts, 0 giants, 0 throttles
     1594 input errors, 0 CRC, 0 frame, 1594 overrun, 0 ignored
     0 watchdog, 3883 multicast, 0 pause input
     2001729 packets output, 384669985 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     2578 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
Watch Question
Distinguished Expert 2018
This problem has been solved!
Unlock 1 Answer and 2 Comments.
See Answer
Why Experts Exchange?

Experts Exchange always has the answer, or at the least points me in the correct direction! It is like having another employee that is extremely experienced.

Jim Murphy
Programmer at Smart IT Solutions

When asked, what has been your best career decision?

Deciding to stick with EE.

Mohamed Asif
Technical Department Head

Being involved with EE helped me to grow personally and professionally.

Carl Webster
CTP, Sr Infrastructure Consultant
Ask ANY Question

Connect with Certified Experts to gain insight and support on specific technology challenges including:

  • Troubleshooting
  • Research
  • Professional Opinions
Did You Know?

We've partnered with two important charities to provide clean water and computer science education to those who need it most. READ MORE