[c-nsp] %LINK-4-ERROR and %CDP-4-DUPLEX_MISMATCH

[Bagosi Rómeó]

Hi all Experts!

 

I have the following problem:

We have two switch connected by fiber cable:

 

WS-C2960G-24TC-L:Gi0/21<<<<< >>>>> Fa1/4:WS-C2924M-XL

                           FIBER

 

The problem is, that the C2924 Switch sends the following messages in every minute:

 

Apr  3 08:11:33.112 MET-DST: %LINK-4-ERROR: FastEthernet1/4 is experiencing errors

 

On the C2960 I cannot change the duplex or the speed settings.

On the C2924 I've changed the duplex settings, but:

-          If it's set to duplex auto or duplex full, then %CDP-4-DUPLEX_MISMATCH error on the C2960 Switch

-          If it's set to duplex half, then %LINK-4-ERROR on the C2924 Switch

 

Why the newer Cisco Devices and IOS doesn't support the speed and duplex settings?

Does these errors highly affect the network performance?

Is there any solution for this problem?

 

 

Thank you in anticipation!

 

 

C2924# sh int fa1/4

FastEthernet1/4 is up, line protocol is up

  Hardware is Fast Ethernet, address is 0004.9a20.63e0 (bia 0004.9a20.63e0)

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

     reliability 250/255, txload 7/255, rxload 1/255

  Encapsulation ARPA, loopback not set

  Keepalive not set

  Half-duplex, 100Mb/s, 100BaseFX

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

  Last input 00:00:06, output 00:00:00, output hang never

  Last clearing of "show interface" counters never

  Queueing strategy: fifo

  Output queue 0/40, 0 drops; input queue 0/75, 0 drops

  5 minute input rate 588000 bits/sec, 440 packets/sec

  5 minute output rate 2890000 bits/sec, 530 packets/sec

     1752297879 packets input, 4205642061 bytes

     Received 6728883 broadcasts, 0 runts, 0 giants, 0 throttles

     5814363 input errors, 5814363 CRC, 0 frame, 58583 overrun, 61143 ignored

     0 watchdog, 1817612 multicast

     0 input packets with dribble condition detected

     2107649242 packets output, 3958607124 bytes, 12 underruns

     12023160 output errors, 7511084 collisions, 8 interface resets

     0 babbles, 12023160 late collision, 12054327 deferred

     0 lost carrier, 0 no carrier

     12 output buffer failures, 0 output buffers swapped out

 

C2960#sh int Gi0/21

GigabitEthernet0/21 is up, line protocol is up (connected)

  Hardware is Gigabit Ethernet, address is 0018.73ec.5b95 (bia 0018.73ec.5b95)

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

     reliability 252/255, txload 1/255, rxload 6/255

  Encapsulation ARPA, loopback not set

  Keepalive not set

  Half-duplex, 100Mb/s, link type is auto, media type is 100BaseFX SFP

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

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

  Last input 00:00:00, output 00:00:04, output hang never

  Last clearing of "show interface" counters never

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

  Queueing strategy: fifo

  Output queue: 0/40 (size/max)

  5 minute input rate 2735000 bits/sec, 519 packets/sec

  5 minute output rate 599000 bits/sec, 440 packets/sec

     1744270788 packets input, 3129573151 bytes, 0 no buffer

     Received 61767996 broadcasts (0 multicast)

     0 runts, 0 giants, 0 throttles

     11288249 input errors, 11288249 CRC, 0 frame, 0 overrun, 0 ignored

     0 watchdog, 16264953 multicast, 0 pause input

     0 input packets with dribble condition detected

     1466543564 packets output, 2681409739 bytes, 0 underruns

     0 output errors, 15260833 collisions, 1 interface resets

     0 babbles, 6268873 late collision, 0 deferred

     0 lost carrier, 0 no carrier, 0 PAUSE output

     0 output buffer failures, 0 output buffers swapped out