Hi all,
I am getting high counters on ISL trunk ports across all my switches
There seem to be no errors but I get "Too large Frames" on the Transmit
and "Valid frames, too large" on the Receive, the MTU across all switches is 1500,
I do not see these issues on any other ports except the trunks, I am not sure if this is a problem,
does anybody have any idea if this is something I should be concerned about, unfortunately this is a remote location
so I am unable to attend the site to do a wireshark trace to see what these packets are?
Below are the show controllers and show interface output for one such port
Transmit GigabitEthernet1/0/11 Receive
1985737654 Bytes 1875094148 Bytes
8481583 Unicast frames 9035176 Unicast frames
524296 Multicast frames 43508 Multicast frames
457112 Broadcast frames 42376 Broadcast frames
0 Too old frames 1587874771 Unicast bytes
0 Deferred frames 8103346 Multicast bytes
0 MTU exceeded frames 5484381 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 5 Minimum size frames
0 8 collision frames 6327442 65 to 127 byte frames
0 9 collision frames 1328933 128 to 255 byte frames
0 10 collision frames 867097 256 to 511 byte frames
0 11 collision frames 177976 512 to 1023 byte frames
0 12 collision frames 255627 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 163980 Valid frames, too large
0 Excess defer frames 0 Invalid frames, too small
3 64 byte frames 0 Valid frames, too small
2017248 127 byte frames
265988 255 byte frames 0 Too old frames
207425 511 byte frames 0 Valid oversize frames
454576 1023 byte frames 0 System FCS error frames
1467674 1518 byte frames 0 RxPortFifoFull drop frame
5050077 Too large frames
0 Good (1 coll) frames
0 Good (>1 coll) frames
core1#show interfaces gigabitEthernet 1/0/11
GigabitEthernet1/0/11 is up, line protocol is up (connected)
Hardware is Gigabit Ethernet, address is b838.6176.fd0b (bia b838.6176.fd0b)
MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive not set
Full-duplex, 1000Mb/s, link type is auto, media type is 1000BaseLX SFP
input flow-control is off, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:29, 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 411000 bits/sec, 231 packets/sec
5 minute output rate 2240000 bits/sec, 234 packets/sec
9244336 packets input, 1907654152 bytes, 0 no buffer
Received 86053 broadcasts (43663 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 43663 multicast, 0 pause input
0 input packets with dribble condition detected
9587399 packets output, 10729144282 bytes, 0 underruns
0 output errors, 0 collisions, 1 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
Thanks in advance any suggestions are welcome
