OutDiscards 3560

Unanswered Question
May 16th, 2012
Добрый день.
Проблема с коммутатором 3560. В гигабитные порты включены сервера.
Получаю ошибки OutDiscards.
На граффике загрузки канала видно, что траффика больше 80 Мбит не бывает на порту, а ошибки сыпятся.

Дуплексы проверял. flow-controll выключен. QoS не используется.

ServerSwitch>show int counters errors

Port        Align-Err     FCS-Err    Xmit-Err     Rcv-Err  UnderSize  OutDiscards

Gi0/1               0           0           0           0          0         8722

Gi0/2               0           0           0           0          0          157

Gi0/3               0           0           0           0          0            0

Gi0/4               0           0           0           0          0            0

Gi0/5               0           0           0           0          0            0

Gi0/6               0           0           0           0          0          446

Gi0/7               0           0           0           0          0            0

Gi0/8               0           0           0           0          0            0

Gi0/9               0           0           0           0          0            0

Gi0/10              0           0           0           0          0            0

Gi0/11              0           0           0           0          0            0

Gi0/12              0           0           0           0          0      1705658

Gi0/13              0           0           0           0          0            9

Gi0/14              0           0           0           0          0           74

Gi0/15              0           0           0           0          0            0

Gi0/16              0           0           0           0          0            0

Gi0/17              0           0           0           0          0            9

Gi0/18              0           0           0           0          0            0

Gi0/19              0           0           0           0          0            0

Gi0/20              0           0           0           0          0            0

Gi0/21              0           0           0           0          0            0

Gi0/22              0           0           0           0          0            0

Gi0/23              0           0           0           0          0          922

Gi0/24              0           0           0           0          0            0

ServerSwitch>sh ver

Cisco  IOS Software, C3560E Software (C3560E-UNIVERSALK9-M), Version  12.2(55)SE3,                                                                                RELEASE SOFTWARE (fc1)

Technical Support: http://www.cisco.com/techsupport

Copyright (c) 1986-2011 by Cisco Systems, Inc.

Compiled Thu 05-May-11 15:57 by prod_rel_team

Image text-base: 0x00003000, data-base: 0x02800000

ROM: Bootstrap program is C3560E boot loader

BOOTLDR:  C3560E Boot Loader (C3560X-HBOOT-M) Version 12.2(53r)SE2, RELEASE  SOFTW                                                                               ARE (fc1)

ServerSwitch uptime is 1 week, 5 days, 20 hours, 34 minutes

System returned to ROM by power-on

System  image file is  "flash:/c3560e-universalk9-mz.122-55.SE3/c3560e-universalk9                                                                               -mz.122-55.SE3.bin"

Самый проблемный интерфейс

GigabitEthernet0/12 is up, line protocol is up (connected)

  Hardware is Gigabit Ethernet, address is ccef.48f9.778c (bia ccef.48f9.778c)

  Description: ***Server7***

  MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,

     reliability 255/255, txload 1/255, rxload 1/255

  Encapsulation ARPA, loopback not set

  Keepalive set (10 sec)

  Full-duplex, 1000Mb/s, media type is 10/100/1000BaseTX

  input flow-control is off, output flow-control is unsupported

  ARP type: ARPA, ARP Timeout 04:00:00

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

  Last clearing of "show interface" counters never

  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 1706302

  Queueing strategy: fifo

  Output queue: 0/40 (size/max)

  5 minute input rate 862000 bits/sec, 60 packets/sec

  5 minute output rate 62000 bits/sec, 26 packets/sec

     2286090320 packets input, 428317853128 bytes, 0 no buffer

     Received 253953 broadcasts (198694 multicasts)

     0 runts, 0 giants, 0 throttles

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

     0 watchdog, 198694 multicast, 0 pause input

     0 input packets with dribble condition detected

     6870724518 packets output, 8760022116799 bytes, 0 underruns

     0 output errors, 0 collisions, 1 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

I have this problem too.
0 votes
  • 1
  • 2
  • 3
  • 4
  • 5
Average Rating: 0 (0 ratings)
Eugene Khabarov Wed, 05/16/2012 - 03:15

Добрый день! Необходимо проверить конфигурацию интерфейсов, на которых вы наблюдаете discards.

Eugene Khabarov Wed, 05/16/2012 - 03:19

Да, уже заметил. Покажите конфигурацию интерфейса G0/12

ArtemVolkov Wed, 05/16/2012 - 04:05

        Вот если all показать

interface GigabitEthernet0/12

description ***Server7***

switchport

switchport access vlan 1

switchport trunk encapsulation negotiate

no switchport nonegotiate

no switchport protected

no switchport block multicast

no switchport block unicast

no ip arp inspection trust

ip arp inspection limit rate 15 burst interval 1

ip arp inspection limit rate 15

no shutdown

no macsec

snmp trap mac-notification change added

snmp trap mac-notification change removed

snmp trap link-status

no mka policy

cdp tlv location

cdp tlv server-location

cdp tlv app

spanning-tree port-priority 3

spanning-tree cost 3

ip igmp snooping tcn flood

dleontye Fri, 05/18/2012 - 14:16

Добрый день, Артем.

Можно попросить вас показать свежий вывод команд

1. show int counters errors

2. show int Gi 0/12

3. show platform port-asic stats drop asic 2

Желательно раза три с интервалом в 2 минуты.

ArtemVolkov Tue, 05/29/2012 - 00:46

Добрый день. Пока осталась проблема.

Вот выводы команд. Остальные разы вводил команды - ничего не меняется.

За 2 минуты ничего не изменяется.

show int counters errors

Port        Align-Err     FCS-Err    Xmit-Err     Rcv-Err  UnderSize  OutDiscards

Gi0/1               0           0           0           0          0        28292

Gi0/2               0           0           0           0          0          213

Gi0/3               0           0           0           0          0            0

Gi0/4               0           0           0           0          0            0

Gi0/5               0           0           0           0          0          101

Gi0/6               0           0           0           0          0          446

Gi0/7               0           0           0           0          0          101

Gi0/8               0           0           0           0          0            0

Gi0/9               0           0           0           0          0            0

Gi0/10              0           0           0           0          0            0

Gi0/11              0           0           0           0          0            0

Gi0/12              0           0           0           0          0      2905276

Gi0/13              0           0           0           0          0            9

Gi0/14              0           0           0           0          0           91

Gi0/15              0           0           0           0          0            0

Gi0/16              0           0           0           0          0            0

Gi0/17              0           0           0           0          0          382

Gi0/18              0           0           0           0          0            0

Gi0/19              0           0           0           0          0            0

Gi0/20              0           0           0           0          0            0

Gi0/21              0           0           0           0          0            0

Gi0/22              0           0           0           0          0            0

Gi0/23              0           0           0           0          0         1940

Gi0/24              0           0           0           0          0          556

ServerSwitch#show int Gi 0/12

GigabitEthernet0/12 is up, line protocol is up (connected)

  Hardware is Gigabit Ethernet, address is ccef.48f9.778c (bia ccef.48f9.778c)

  Description: ***Server7***

  MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,

     reliability 255/255, txload 1/255, rxload 1/255

  Encapsulation ARPA, loopback not set

  Keepalive set (10 sec)

  Full-duplex, 1000Mb/s, media type is 10/100/1000BaseTX

  input flow-control is off, output flow-control is unsupported

  ARP type: ARPA, ARP Timeout 04:00:00

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

  Last clearing of "show interface" counters never

  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 2905276

  Queueing strategy: fifo

  Output queue: 0/40 (size/max)

  5 minute input rate 0 bits/sec, 0 packets/sec

  5 minute output rate 20000 bits/sec, 23 packets/sec

     4091440493 packets input, 728910818117 bytes, 0 no buffer

     Received 473199 broadcasts (297078 multicasts)

     0 runts, 0 giants, 0 throttles

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

     0 watchdog, 297078 multicast, 0 pause input

     0 input packets with dribble condition detected

     13533643168 packets output, 17864890326308 bytes, 0 underruns

     0 output errors, 0 collisions, 1 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

Port-asic Port Drop Statistics - Summary

========================================

  RxQueue Drop Statistics Slice0

   RxQueue 0 Drop Stats Slice0: 0

   RxQueue 1 Drop Stats Slice0: 0

   RxQueue 2 Drop Stats Slice0: 0

   RxQueue 3 Drop Stats Slice0: 0

  RxQueue Drop Statistics Slice1

   RxQueue 0 Drop Stats Slice1: 0

   RxQueue 1 Drop Stats Slice1: 0

   RxQueue 2 Drop Stats Slice1: 0

   RxQueue 3 Drop Stats Slice1: 0

  Port  0 TxQueue Drop Stats: 213

  Port  1 TxQueue Drop Stats: 28292

  Port  2 TxQueue Drop Stats: 0

  Port  3 TxQueue Drop Stats: 0

  Port  4 TxQueue Drop Stats: 446

  Port  5 TxQueue Drop Stats: 101

  Port  6 TxQueue Drop Stats: 0

  Port  7 TxQueue Drop Stats: 0

  Port  8 TxQueue Drop Stats: 0

  Port  9 TxQueue Drop Stats: 101

  Port 10 TxQueue Drop Stats: 0

  Port 11 TxQueue Drop Stats: 0

  Port 12 TxQueue Drop Stats: 2905276

  Port 13 TxQueue Drop Stats: 0

  Port 14 TxQueue Drop Stats: 91

  Port 15 TxQueue Drop Stats: 9

  Port 16 TxQueue Drop Stats: 0

  Port 17 TxQueue Drop Stats: 0

  Port 18 TxQueue Drop Stats: 0

  Port 19 TxQueue Drop Stats: 382

  Port 20 TxQueue Drop Stats: 0

  Port 21 TxQueue Drop Stats: 0

  Port 22 TxQueue Drop Stats: 0

  Port 23 TxQueue Drop Stats: 0

  Port 24 TxQueue Drop Stats: 0

  Port 25 TxQueue Drop Stats: 0

  Port 26 TxQueue Drop Stats: 556

  Port 27 TxQueue Drop Stats: 1940

  Supervisor TxQueue Drop Statistics

    Queue  0: 0

    Queue  1: 0

    Queue  2: 0

    Queue  3: 120

    Queue  4: 0

    Queue  5: 0

    Queue  6: 0

    Queue  7: 15

    Queue  8: 1175

    Queue  9: 0

    Queue 10: 0

    Queue 11: 0

    Queue 12: 0

    Queue 13: 0

    Queue 14: 0

    Queue 15: 0

Port 12 TxQueue Drop Statistics

    Queue 0

      Weight 0 Frames 0

      Weight 1 Frames 0

      Weight 2 Frames 0

    Queue 1

      Weight 0 Frames 0

      Weight 1 Frames 0

      Weight 2 Frames 0

    Queue 2

      Weight 0 Frames 0

      Weight 1 Frames 0

      Weight 2 Frames 0

    Queue 3

      Weight 0 Frames 0

      Weight 1 Frames 0

      Weight 2 Frames 2905276

    Queue 4

      Weight 0 Frames 0

      Weight 1 Frames 0

      Weight 2 Frames 0

    Queue 5

      Weight 0 Frames 0

      Weight 1 Frames 0

      Weight 2 Frames 0

    Queue 6

      Weight 0 Frames 0

      Weight 1 Frames 0

      Weight 2 Frames 0

    Queue 7

      Weight 0 Frames 0

      Weight 1 Frames 0

      Weight 2 Frames 0

otipisov Sat, 06/09/2012 - 11:56

Беда с этими Total Output Drops на Cat 3k. Если глобально включен "mls qos", то лучше это отключить. Если нет, то лучше успокоиться и не обращать внимание, тем более, если счетчики не растут.

Actions

Login or Register to take actions

This Discussion

Posted May 16, 2012 at 3:07 AM
Stats:
Replies:7 Avg. Rating:
Views:1035 Votes:0
Shares:0
Tags: No tags.