Tell me, do you see drops on f1/2? I note you didn't paste show int for this.
The reason I ask is that the drops *can* be as a result of policy (or lack of ability) as opposed to performance, from experience. For instance, you have STP BPDU filtering enabled on f1/1 and f1/48 but not f1/2, do you still see the drops on f1/2? could the drops be filtered STP BPDUs perhaps? Dave. > > So, what causing Output drops on this card ? > > Here is output of show interface: > FastEthernet1/1 is up, line protocol is up (connected) > Hardware is C6k 100Mb 802.3, address is 0001.c96a.8e84 (bia 0001.c96a.8e84) > Description: Customer DataTech > MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, > reliability 255/255, txload 31/255, rxload 65/255 > Encapsulation ARPA, loopback not set > Keepalive set (10 sec) > Full-duplex, 100Mb/s > input flow-control is off, output flow-control is unsupported > ARP type: ARPA, ARP Timeout 04:00:00 > Last input never, output never, output hang never > Last clearing of "show interface" counters 7w3d > Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: > 19674562 > Queueing strategy: fifo > Output queue: 0/40 (size/max) > 30 second input rate 25559000 bits/sec, 10902 packets/sec > 30 second output rate 12205000 bits/sec, 13481 packets/sec > 24149904901 packets input, 10099290976969 bytes, 0 no buffer > Received 7617 broadcasts (7617 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 > 29324673054 packets output, 3831810881262 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 > > FastEthernet1/48 is up, line protocol is up (connected) > Hardware is C6k 100Mb 802.3, address is 0001.c96a.8e86 (bia 0001.c96a.8e86) > Description: sw3 > MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, > reliability 255/255, txload 105/255, rxload 51/255 > Encapsulation ARPA, loopback not set > Keepalive set (10 sec) > Full-duplex, 100Mb/s > input flow-control is off, output flow-control is unsupported > ARP type: ARPA, ARP Timeout 04:00:00 > Last input never, output never, output hang never > Last clearing of "show interface" counters 7w3d > Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: > 2032436 > Queueing strategy: fifo > Output queue: 0/40 (size/max) > 30 second input rate 20003000 bits/sec, 6993 packets/sec > 30 second output rate 41324000 bits/sec, 7807 packets/sec > 25171862715 packets input, 9131681778867 bytes, 0 no buffer > Received 493121 broadcasts (160311 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 > 28744492098 packets output, 19704727289126 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 > > interface FastEthernet1/1 > description Customer DataTech > switchport > switchport access vlan 604 > switchport mode access > no ip address > logging event link-status > load-interval 30 > no cdp enable > spanning-tree portfast > spanning-tree bpdufilter enable > ! > interface FastEthernet1/2 > description MGMT SDH > switchport > switchport access vlan 2150 > switchport mode access > no ip address > logging event link-status > load-interval 30 > speed 10 > no cdp enable > spanning-tree portfast > ! > ... > interface FastEthernet1/48 > description sw3 > switchport > switchport trunk encapsulation dot1q > switchport trunk allowed vlan 136,338,622,1810 > switchport mode trunk > switchport nonegotiate > no ip address > logging event link-status > logging event bundle-status > logging event trunk-status > load-interval 30 > speed 100 > duplex full > no cdp enable > spanning-tree portfast trunk > spanning-tree bpdufilter enable > ! > > Thanks, > Robert > _______________________________________________ > cisco-nsp mailing list [email protected] > https://puck.nether.net/mailman/listinfo/cisco-nsp > archive at http://puck.nether.net/pipermail/cisco-nsp/ > _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
