Hi everyone. I'm troubleshooting some high output drops on our edge switches that handoff to our customers. Originally I suspected this was a result of QoS policy, however we have since removed QpS config from the ports. Can anyone enlighten me on if having QoS enabled globally, but not on each port has any effect? As you can see the Output Drops are substantial.
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Cisco IOS Software, C2960 Software (C2960-LANBASEK9-M), Version 12.2(52)SE, RELEASE SOFTWARE (fc3)
show int fa 0/4
FastEthernet0/4 is up, line protocol is up (connected) Hardware is Fast Ethernet, address is 0019.06fa.2984 (bia 0019.06fa.2984) Description: Primary DIA 100Mb Updated 10-05-2021 MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 120/255, rxload 1/255 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 00:00:00, output hang never Last clearing of "show interface" counters 03:45:51 Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 12337827 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 223000 bits/sec, 112 packets/sec 5 minute output rate 47111000 bits/sec, 4903 packets/sec 9967718 packets input, 4870732901 bytes, 0 no buffer Received 2727 broadcasts (0 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 0 multicast, 0 pause input 0 input packets with dribble condition detected 49327585 packets output, 51225878591 bytes, 0 underruns 0 output errors, 0 collisions, 0 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
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