02-01-2012 11:52 AM - edited 03-04-2019 03:06 PM
Hello,
I am looking at the interface stats of port Fa1/0/2 and see something strange.
Ouput drops are 42Billion in 16mins, then 21249 few seconds later, then followed by 42Billion drops again, then 21444...and so forth..
I keep getting an entirely different output drops reading everytime i refresh within seconds of each refresh!
Any idea?
Thanks
--------------------------------------------------------------------------------------------------------------------------------------
sh int fa1/0/2
FastEthernet1/0/2 is up, line protocol is up (connected)
Hardware is Fast Ethernet, address is ecc8.8266.d604 (bia ecc8.8266.d604)
Description: MSGMERGF1
MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec,
reliability 255/255, txload 12/255, rxload 11/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 100Mb/s, media type is 10/100BaseTX
input flow-control is off, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output 2w4d, output hang never
Last clearing of "show interface" counters 00:16:13
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 4237333677
Queueing strategy: fifo
Output queue: 0/40 (size/max)
-------------------------------------
sh int fa1/0/2
FastEthernet1/0/2 is up, line protocol is up (connected)
Hardware is Fast Ethernet, address is ecc8.8266.d604 (bia ecc8.8266.d604)
Description: MSGMERGF1
MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec,
reliability 255/255, txload 12/255, rxload 11/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 100Mb/s, media type is 10/100BaseTX
input flow-control is off, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output 2w4d, output hang never
Last clearing of "show interface" counters 00:16:21
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 21249
Queueing strategy: fifo
Output queue: 0/40 (size/max)
---------------------------------------------------------------------------
sh int fa1/0/2
FastEthernet1/0/2 is up, line protocol is up (connected)
Hardware is Fast Ethernet, address is ecc8.8266.d604 (bia ecc8.8266.d604)
Description: MSGMERGF1
MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec,
reliability 255/255, txload 11/255, rxload 10/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 100Mb/s, media type is 10/100BaseTX
input flow-control is off, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output 2w4d, output hang never
Last clearing of "show interface" counters 00:17:11
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 4237333967
Queueing strategy: fifo
Output queue: 0/40 (size/max)
02-01-2012 01:48 PM
Can you please post the output to the command "sh controller e Fa1/0/2" please?
02-02-2012 06:25 AM
SW-MIS-02#sh controllers ethernet-controller fastEthernet 1/0/2
Transmit FastEthernet1/0/2 Receive
4131274693 Bytes 756627405 Bytes
583239588 Unicast frames 956800308 Unicast frames
20424850 Multicast frames 0 Multicast frames
67873 Broadcast frames 1580 Broadcast frames
0 Too old frames 756526285 Unicast bytes
0 Deferred frames 0 Multicast bytes
0 MTU exceeded frames 101120 Broadcast bytes
0 1 collision frames 0 Alignment errors
0 2 collision frames 0 FCS errors
0 3 collision frames 0 Oversize frames
0 4 collision frames 0 Undersize frames
0 5 collision frames 0 Collision fragments
0 6 collision frames
0 7 collision frames 719020450 Minimum size frames
0 8 collision frames 1969836560 65 to 127 byte frames
0 9 collision frames 176862349 128 to 255 byte frames
0 10 collision frames 246901816 256 to 511 byte frames
0 11 collision frames 261129932 512 to 1023 byte frames
0 12 collision frames 1878018077 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 0 Invalid frames, too small
1024105859 64 byte frames 0 Valid frames, too small
1423130552 127 byte frames
299623819 255 byte frames 0 Too old frames
171939440 511 byte frames 0 Valid oversize frames
256164639 1023 byte frames 0 System FCS error frames
1723735298 1518 byte frames 0 RxPortFifoFull drop frame
0 Too large frames
0 Good (1 coll) frames
0 Good (>1 coll) frames
SW-MIS-02#
SW-MIS-02#sh int fastEthernet 1/0/2
FastEthernet1/0/2 is up, line protocol is up (connected)
Hardware is Fast Ethernet, address is ecc8.8266.d604 (bia ecc8.8266.d604)
Description: MSGMERGF1
MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec,
reliability 255/255, txload 13/255, rxload 12/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 100Mb/s, media type is 10/100BaseTX
input flow-control is off, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output 2w5d, output hang never
Last clearing of "show interface" counters 00:03:46
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 4237003919
-----------------------------
SW-MIS-02#sh int fastEthernet 1/0/2
FastEthernet1/0/2 is up, line protocol is up (connected)
Hardware is Fast Ethernet, address is ecc8.8266.d604 (bia ecc8.8266.d604)
Description: MSGMERGF1
MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec,
reliability 255/255, txload 13/255, rxload 12/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 100Mb/s, media type is 10/100BaseTX
input flow-control is off, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output 2w5d, output hang never
Last clearing of "show interface" counters 00:03:51
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 5380
02-02-2012 06:36 AM
Ok, so it looks like this is a known bug, # CSCtq86186 on 12.2.58 with a stack of 3750
Bug Details
further:
Thanks Leolaohoo
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