FCS, runts and RCV-errors

[danielesquaranti]

Hi,

I have a problem with someone interafaces

This cause the crash and reboot of the switch (I suppose).

Which could be the problem?

Thanks

[marce1000]

                            >....This cause the crash and reboot of the switch (I suppose).

 These types of problems normally don't cause crash and reboot. Check network integrity and operations for device at the other end , look at it's network settings ,logs ,networking  events,....  .  make sure duplex matches. Check for faulty cable too (e.g.)

 M.

[Elliot Dierksen]

I totally agree with @marce1000 on this. This FCS, runts, and CRC errors make me think that this port is forced to full duplex and the other side is auto. Forced duplex OF ANY KIND causes the switch to not respond to duplex negotiations. That means the "auto" side has to assume half duplex.

[paul driver]

Hello

Suggest to tweak your interface speed/duplex settings and check the physical cabling ..clear the counters and test again

[Leo Laohoo]

Post the complete output to the following commands: 

• sh version
• sh interface Gi1/0/37 controll

NOTE:  DO NOT POST screenshots.  Copy-n-paste the output into a text file and attach to the reply.

[danielesquaranti]

GigabitEthernet1/0/37 is up, line protocol is up (connected)
Hardware is Gigabit Ethernet, address is 08cc.a76f.2d25 (bia 08cc.a76f.2d25)
Description:
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, 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 05:09:49, output 00:00:00, output hang never
Last clearing of "show interface" counters 1w0d
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 5000 bits/sec, 6 packets/sec
5 minute output rate 7000 bits/sec, 6 packets/sec
5233308 packets input, 1039706519 bytes, 0 no buffer
Received 22804 broadcasts (18781 multicasts)
84345 runts, 0 giants, 0 throttles
123178 input errors, 38833 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 18781 multicast, 0 pause input
0 input packets with dribble condition detected
7133812 packets output, 4498906859 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 pause output
0 output buffer failures, 0 output buffers swapped out

Transmit GigabitEthernet1/0/37 Receive
2630371283 Bytes 2712062986 Bytes
23292580 Unicast frames 20419306 Unicast frames
2925638 Multicast frames 45291 Multicast frames
176157 Broadcast frames 7034 Broadcast frames
0 Too old frames 2697372617 Unicast bytes
0 Deferred frames 4234516 Multicast bytes
0 MTU exceeded frames 574758 Broadcast bytes
0 1 collision frames 0 Alignment errors
0 2 collision frames 64925 FCS errors
0 3 collision frames 0 Oversize frames
0 4 collision frames 0 Undersize frames
0 5 collision frames 167864 Collision fragments
0 6 collision frames
0 7 collision frames 15625407 Minimum size frames
0 8 collision frames 3425689 65 to 127 byte frames
0 9 collision frames 370546 128 to 255 byte frames
0 10 collision frames 125756 256 to 511 byte frames
0 11 collision frames 162784 512 to 1023 byte frames
0 12 collision frames 826374 1024 to 1518 byte frames
0 13 collision frames 0 Overrun frames
0 14 collision frames 0 Pause frames
0 15 collision frames
0 Excessive collisions 0 Symbol error frames
0 Late collisions 0 Invalid frames, too large
0 VLAN discard frames 0 Valid frames, too large
0 Excess defer frames 167864 Invalid frames, too small
15722790 64 byte frames 0 Valid frames, too small
2528228 127 byte frames
1124498 255 byte frames 0 Too old frames
113894 511 byte frames 0 Valid oversize frames
138419 1023 byte frames 0 System FCS error frames
6766546 1518 byte frames 0 RxPortFifoFull drop frame
0 Too large frames
0 Good (1 coll) frames
0 Good (>1 coll) frames