On one of the ports on our recently upgraded switch we are getting a high number of discards. Switch we use is WS-C3650-24PD-E. We use Solar Winds for switch/port monitoring and these discards are happening at random intervals. Last few days there were none and then yesterday and today there are over million discards on the given port.
Port Configuration:
interface GigabitEthernet1/0/19
switchport access vlan 2
switchport mode access
speed 1000
duplex full
end
Show Interface:
GigabitEthernet1/0/19 is up, line protocol is up (connected)
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 set (10 sec)
Full-duplex, 1000Mb/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 never, output 00:00:00, output hang never
Last clearing of "show interface" counters 2w4d
Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 2279088
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 700000 bits/sec, 286 packets/sec
5 minute output rate 3388000 bits/sec, 480 packets/sec
136094155 packets input, 51417445035 bytes, 0 no buffer
Received 190438 broadcasts (4216 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 4216 multicast, 0 pause input
0 input packets with dribble condition detected
218477298 packets output, 186197856830 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
As you can see total output drops is very high. Before I set up port monitor and WireShark, anyone has any idea what might be causing this?
