Hi all,
We have two WS-C6509s and they are connected to saperate servers.
We have noticed that several ports are reporting output drops even the traffic rate is very low.
module WS-X6748-GE-TX is in the chassis.
the interfaces are configured as below.
interface GigabitEthernet8/1
switchport
switchport access vlan 10
switchport mode access
logging event link-status
load-interval 30
storm-control broadcast level 0.50
storm-control multicast level 0.50
storm-control action trap
spanning-tree portfast edge
and show interface
GigabitEthernet8/1 is up, line protocol is up (connected)
Hardware is C6k 1000Mb 802.3, address is 5475.d0fc.cfa0 (bia 5475.d0fc.cfa0)
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 6/255, rxload 5/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 1000Mb/s, media type is 10/100/1000BaseT
input flow-control is off, output flow-control is off
Clock mode is auto
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output 00:00:22, output hang never
Last clearing of "show interface" counters 2d07h
Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 1879
Queueing strategy: fifo
Output queue: 0/40 (size/max)
30 second input rate 21106000 bits/sec, 4019 packets/sec
30 second output rate 24524000 bits/sec, 4042 packets/sec
689514446 packets input, 464893591020 bytes, 0 no buffer
Received 0 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
693962099 packets output, 528720003485 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
I'd like to know how to determine what kind of packets are being dropped and how to reduce.
any advises would be approciate.
