HWIC-2FE error in 3845 ?

Unanswered Question
Sep 17th, 2010

Hi,all

I have two cisco 3845 routers,every router contains one HWIC-2FE card and 2GE port .

But recently ,I found that something is wrong with my  HWIC-2FE card in one router.

These two FE ports does not forward data, if i reload this router ,every thing is ok ,but after

about one month,these two ports does not work again. But the other router is always normal.

I get "show interfaces",as  follows:

"

FastEthernet0/0/0 is up, line protocol is up
  Hardware is FastEthernet, address is 8843.e149.13ee (bia 8843.e149.13ee)
  Internet address is 29.48.252.2/30
  MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Half-duplex, 100Mb/s, 100BaseTX/FX
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input 01:16:25, output 00:00:04, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/75/28293/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 0 bits/sec, 0 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec
     48586325 packets input, 1670785161 bytes
     Received 7373 broadcasts, 0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog
     0 input packets with dribble condition detected
     110314217 packets output, 3616246667 bytes, 0 underruns
     138239 output errors, 163725 collisions, 7 interface resets
     0 unknown protocol drops
     0 babbles, 56277 late collision, 144719 deferred
     8 lost carrier, 0 no carrier
     0 output buffer failures, 0 output buffers swapped out
FastEthernet0/0/1 is up, line protocol is up
  Hardware is FastEthernet, address is 8843.e149.13ef (bia 8843.e149.13ef)
  Internet address is 29.50.121.253/30
  MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Full-duplex, 100Mb/s, 100BaseTX/FX
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input 1d00h, output 00:00:02, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/75/44906/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 0 bits/sec, 0 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec
     546353 packets input, 87859593 bytes
     Received 48 broadcasts, 0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog
     0 input packets with dribble condition detected
     978135 packets output, 127247342 bytes, 0 underruns
     104 output errors, 0 collisions, 7 interface resets
     1 unknown protocol drops
     0 babbles, 0 late collision, 0 deferred
     8 lost carrier, 0 no carrier
     0 output buffer failures, 0 output buffers swapped out

"

ps:

Interface F0/0/0  connect to ISP,ISP provide 6M  full duplex,

Interface F0/0/1  connect to the interface f0/0/1 of the other 3845 router,

I'm glad to see your suggestion ,thank you very much.

I have this problem too.
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Reza Sharifi Fri, 09/17/2010 - 07:02

Hi,

Interface fa0/0/0 is in half duplex and fa0/0/1 is in full duplex.

Do you have the right cable for both interfaces (Cat-5)? Also, the distance can only be up to 100 Meters (328 feet).

HTH

Reza

superlikf Fri, 09/17/2010 - 19:31

Hi,Reza


Firstly,thank you for your reply.

interface fa0/0/0 is really in half duplex, but when the router run normally,this interface is  in full duplex,

the distance of both cables are less than ten Meters ,and the cable for interface fa0/0/1 is provided with the product,

I'll check the the other cable soon.

In addition,if the cable pluged in the interface fa0/0/0 is bad,would it cause the other interface (interface fa0/0/1) error ?

thank you

kefeng li

Reza Sharifi Fri, 09/17/2010 - 19:37

Hi Kefeng,

It should not.  The interfaces are independent from each other unless something is wrong with the HWIC module itself.

Also, what version of IOS are you running?

HTH

Reza

superlikf Fri, 09/17/2010 - 21:54

Hi,Reza

The IOS version is c3845-ipbase-mz.124-15.T10.bin,

Kefeng Li

Nagaraja Thanthry Sat, 09/18/2010 - 00:54

Hello,

Do you know if your ISP is using hard coded speed/duplex values? If yes, can you ask them to set it to auto? If they cannot, then you might have to put an off-the-shelf switch in between the router and the ISP to make them compatible. The issue seems to be due to the compatibility between the ISP router and your router interfaces.

Regards,

NT

superlikf Sat, 09/18/2010 - 05:15

Hello,Nagaraja Thanthry

This router was not always being in half-duplex mode ,only happened after the crash. But I'll check it and try your suggestion tormorrow,

Thank you,

Kefeng Li

superlikf Mon, 10/11/2010 - 02:25

Dear all,

      The error is the motherboard in 3845,after changing it ,it returns to normal.

thank you for your suggestion.

Best Regards,

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