Jump to content
Калькуляторы

с6500 сыпятся input errors

Добрый день!

 

Есть схема:

 

| c6500 |g4/47|------[trunk]------| g0/0/3| ASR1002f |

 

Как собрал такую схему- сразу стал тикать input errors на инт-се c6500 - g4/47 на инт-се g0/0/3 - все хорошо. Причем, потерь нет, клиенты не жалуются- просто тикает счетчик:

 

g4/47

GigabitEthernet4/47 is up, line protocol is up (connected)
 Hardware is C6k 1000Mb 802.3, address is 0012.80c7.04de (bia 0012.80c7.04de)
 Description: Link to asr1002f-1
 MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec, 
    reliability 255/255, txload 14/255, rxload 41/255
 Encapsulation ARPA, loopback not set
 Keepalive set (10 sec)
 Full-duplex, 1000Mb/s, media type is 10/100/1000BaseT
 input flow-control is off, output flow-control is off
 Clock mode is auto
 ARP type: ARPA, ARP Timeout 04:00:00
 Last input never, output never, output hang never
 Last clearing of "show interface" counters 09:18:10
 Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 0
 Queueing strategy: fifo
 Output queue: 0/40 (size/max)
 5 minute input rate 160938000 bits/sec, 20173 packets/sec
 5 minute output rate 58258000 bits/sec, 17267 packets/sec
    154295390 packets input, 135788600661 bytes, 0 no buffer
    Received 4121 broadcasts (3863 multicasts)
    0 runts, 0 giants, 0 throttles 
    367 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
    0 watchdog, 0 multicast, 0 pause input
    0 input packets with dribble condition detected
    138657812 packets output, 67045673270 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

 

g0/0/3

GigabitEthernet0/0/3 is up, line protocol is up 
 Hardware is 4XGE-BUILT-IN, address is 4055.399d.9203 (bia 4055.399d.9203)
 Description: Link to c6506E
 MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec, 
    reliability 255/255, txload 40/255, rxload 14/255
 Encapsulation 802.1Q Virtual LAN, Vlan ID  1., loopback not set
 Keepalive not supported 
 Full Duplex, 1000Mbps, link type is auto, media type is T
 output flow-control is on, input flow-control is on
 ARP type: ARPA, ARP Timeout 04:00:00
 Last input 00:00:10, output 00:00:11, output hang never
 Last clearing of "show interface" counters never
 Input queue: 0/375/0/0 (size/max/drops/flushes); Total output drops: 0
 Queueing strategy: fifo
 Output queue: 0/40 (size/max)
 30 second input rate 57823000 bits/sec, 16808 packets/sec
 30 second output rate 159113000 bits/sec, 19761 packets/sec
    2576235394 packets input, 1105227377945 bytes, 0 no buffer
    Received 269 broadcasts (0 IP multicasts)
    0 runts, 0 giants, 0 throttles
    0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
    0 watchdog, 52402 multicast, 0 pause input
    2888300571 packets output, 2688926885221 bytes, 0 underruns
    0 output errors, 0 collisions, 6 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

 

Посмотрел sh int g4/47 counters errors вроде ничего криминального

 

Port                     Align-Err             FCS-Err            Xmit-Err             Rcv-Err           UnderSize         OutDiscards
Gi4/47                           0                   0                   0                 377                   0                   0

Port                    Single-Col           Multi-Col            Late-Col          Excess-Col           Carri-Sen               Runts              Giants
Gi4/47                           0                   0                   0                   0                   0                   0                   0

Port                   SQETest-Err         Deferred-Tx        IntMacTx-Err        IntMacRx-Err          Symbol-Err
Gi4/47                           0                   0                   0                   0                   0

 

Настройки на инт-сах такие:

 

g4.47

interface GigabitEthernet4/47
description Link to asr1002f-1
switchport
switchport trunk encapsulation dot1q
switchport trunk native vlan 666
switchport trunk allowed vlan 115,200
switchport mode trunk
switchport nonegotiate
logging event link-status
end

 

g0/0/3

interface GigabitEthernet0/0/3
description Link to c6506E
no ip address
load-interval 30
negotiation auto
end

 

Сам порт (4/47) находится на WS-X6748-GE-TX суп-WS-SUP720-3B

 

Пробовал менять кабель и модуль на ASR- проблема осталась. Может конечно с интерфейсом что-то, но трафик то ходит без проблем (трафика примерно 300 мбит). Больше склонюсь к багу ИОСа 12.2(33)SXI6, может кто сталкивался с таким?

Edited by VolanD666

Share this post


Link to post
Share on other sites

Ну, написанному верить. Как быстро растёт счётчик?

 

А так, физика скорее всего.

Share this post


Link to post
Share on other sites

STP? при topology change пакеты дропаются. бебаг включить - порбовать там выловить ошибки, отправив на syslog все сообщения для парсинга.

Share this post


Link to post
Share on other sites

Попробую порт поменять на с6500. Еще есть предположение, что это из-за того, что на g0/0/3 раньше был erspan настроен как destination. Он уже давно выключен (удален из конфига), но почему то sh platform hardware qfp active feature erspan state показывает статус Active.

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.