10-08-2009 01:38 PM - edited 03-06-2019 08:03 AM
I am seeing one of the swtich port on a ws-c2950T-24 switch port line protocol is bouncing and and show controllers ethernet-controller command shows 53 Symbol error frames, 1322 False carrier errors. also show interface command shows 53 input, 51 crc errors, 2 frame, 2 interface resets. Is the switch port going bad?
10-08-2009 01:42 PM
can you post your show outputs
10-12-2009 06:13 AM
sorry for the delay
SW4#show controllers ethernet-controller f 0/14
Transmit Receive
224837717 Bytes 15723964 Bytes
2676458 Frames 135573 Frames
1454229 Multicast frames 102 FCS errors
1061466 Broadcast frames 16216 Multicast frames
0 Pause frames 1419 Broadcast frames
0 Single defer frames 0 Control frames
0 Multiple defer frames 0 Pause frames
0 1 collision frames 0 Unknown opcode frames
0 2-15 collisions 6 Alignment errors
0 Late collisions 0 Length out of range
0 Excessive collisions 108 Symbol error frames
0 Total collisions 2030 False carrier errors
0 Control frames 0 Valid frames, too small
0 VLAN discard frames 0 Valid frames, too large
0 Too old frames 13 Invalid frames, too small
0 Tagged frames 0 Invalid frames, too large
0 Aborted Tx frames 0 Discarded frames
Transmit and Receive
1034637 Minimum size frames
1666350 65 to 127 byte frames
47902 128 to 255 byte frames
61642 256 to 511 byte frames
849 512 to 1023 byte frames
638 1024 to 1518 byte frames
0 1519 to 1522 byte frames
10-12-2009 06:14 AM
SW4#show interface fa 0/14
FastEthernet0/14 is up, line protocol is up (connected)
Hardware is Fast Ethernet, address is 0019.55db.b70e (bia 0019.55db.b70e)
MTU 1500 bytes, BW 100000 Kbit, 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 100BaseTX
input flow-control is unsupported output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:24, 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: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 1000 bits/sec, 2 packets/sec
135356 packets input, 15724992 bytes, 0 no buffer
Received 17636 broadcasts (0 multicast)
0 runts, 0 giants, 0 throttles
108 input errors, 102 CRC, 6 frame, 0 overrun, 0 ignored
0 watchdog, 16217 multicast, 0 pause input
0 input packets with dribble condition detected
2676749 packets output, 224862486 bytes, 0 underruns
0 output errors, 0 collisions, 2 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
10-12-2009 06:16 AM
SW4#show log
Syslog logging: enabled (0 messages dropped, 1 messages rate-limited, 0 flushes,
0 overruns)
Console logging: level debugging, 1094 messages logged
Monitor logging: level debugging, 0 messages logged
Buffer logging: level debugging, 1095 messages logged
Exception Logging: size (4096 bytes)
File logging: disabled
Trap logging: level informational, 1099 message lines logged
Logging to xxxxxxxxxxxxx, 624 message lines logged
Log Buffer (4096 bytes):
o up
1w2d: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/14, changed
state to down
1w2d: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/14, changed
state to up
1w2d: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/14, changed
state to down
1w2d: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/14, changed
state to up
1w2d: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/14, changed
state to down
1w2d: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/14, changed
state to up
1w2d: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/14, changed
state to down
1w2d: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/14, changed
state to up
1w2d: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/14, changed
state to down
1w2d: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/14, changed
state to up
1w2d: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/14, changed
state to down
1w2d: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/14, changed
state to up
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