[Lista ArNOG] input errors

Mie Oct 11 20:03:28 ART 2017

Hola Exequiel

Eso seria: giants

giants

Number of packets that are discarded because they exceed the medium's maximum packet size. For example, any Ethernet packet that is greater than 1,518 bytes is considered a giant.

De: lista-bounces en arnog.com.ar [mailto:lista-bounces en arnog.com.ar] En nombre de Exequiel Goapper
Enviado el: miércoles, 11 de octubre de 2017 7:16 p.m.
Para: lista en arnog.com.ar
Asunto: Re: [Lista ArNOG] input errors

no pueden ser paquetes con MTU mayor a 1500 que le entran a la interfaz?

-------- Mensaje original --------
Asunto: [Lista ArNOG] input errors
De: "Fernando R. Soto" 
Para: lista en arnog.com.ar <mailto:lista en arnog.com.ar> 
CC: 

Hola. Tengo estos input errors en una interfaz…

Alguno con experiencia en esos errores? 

Sera un host detrás que manda mal los paquetes?

Como lo rastreo? Port mirror y wireshark?

R1DC#show interfaces fastEthernet 0/1

FastEthernet0/1 is up, line protocol is up

  Hardware is i82543 (Livengood), address is 0007.8429.2c06 (bia 0007.8429.2c06)

  Description: DCN-CORP-MNG

  MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec,

     reliability 255/255, txload 13/255, rxload 7/255

  Encapsulation 802.1Q Virtual LAN, Vlan ID  1., loopback not set

  Keepalive set (10 sec)

  Full-duplex, 100Mb/s, 100BaseTX/FX

  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 00:02:54

  Input queue: 3/75/34/2468 (size/max/drops/flushes); Total output drops: 0

  Queueing strategy: fifo

  Output queue: 0/40 (size/max)

  30 second input rate 3012000 bits/sec, 1741 packets/sec

  30 second output rate 5172000 bits/sec, 3742 packets/sec

     313428 packets input, 66419283 bytes

     Received 3669 broadcasts (0 IP multicasts)

     0 runts, 0 giants, 6 throttles

     403 input errors, 0 CRC, 0 frame, 0 overrun, 403 ignored

     0 watchdog

     0 input packets with dribble condition detected

     681911 packets output, 129437759 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 output buffer failures, 0 output buffers swapped out

R1DC#

Includes runts, giants, no buffer, CRC, frame, overrun, and ignored counts. Other input-related errors can also cause the input errors count to be increased, and some datagrams may have more than one error; therefore, this sum may not balance with the sum of enumerated input error counts.

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