From: Ram Shummoogum (rshummoo@ca.ibm.com)
Date: Wed Mar 12 2003 - 11:46:01 GMT-3
Thanks a lot.
You just made my day.
RAM
Craig Dorry <chdorry@yahoo.com> on 03/12/2003 07:55:37 AM
To: Charles Church <cchurch@wamnet.com>, Ram Shummoogum/Quebec/IBM@IBMCA
cc: ccielab@groupstudy.com
Subject: RE: output drops
All - This is a bug in the catalyst 6k running native
IOS. Look at CSCdv86024 - we ran into it in
12.1(8A)E3, I think it is fixed in 12.1(8B)E13 or
later. Hope this helps.
--- Charles Church <cchurch@wamnet.com> wrote:
> Ram,
>
> Looks like it's dropping about 1 out of every 500
> frames. It looks like
> it's a 6500 in native mode? Short of it being any
> software bugs, I suppose
> you could bump up the out queue to about 80 in case
> it's just some big
> bursts doing it. Command is 'hold 80 out' on the
> interface. Give that a
> shot, and see if the rate of drops goes down. Are
> you getting a lot of
> misses in the show buff output?
>
> Chuck Church
> CCIE #8776, MCNE, MCSE
> Wam!Net Government Services
> 13600 EDS Dr.
> Herndon, VA 20171
> cell 585-233-2706
> cchurch@wamnet.com
>
> -----Original Message-----
> From: Ram Shummoogum [mailto:rshummoo@ca.ibm.com]
> Sent: Tuesday, March 11, 2003 7:12 PM
> To: cchurch@wamnet.com
> Cc: ccielab@groupstudy.com
> Subject: RE: output drops
>
>
> As you can see there is almost no load and no I am
> not doing any rate
> limiting.
> Plain vanilla.
>
>
> GigabitEthernet2/16 is up, line protocol is up
> Hardware is C6k 1000Mb 802.3, address is
> 000a.8b1e.1c0a (bia
> 000a.8b1e.1c0a)
> MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
> reliability 255/255, txload 1/255, rxload 1/255
> Encapsulation ARPA, loopback not set
> Keepalive set (10 sec)
> Full-duplex mode, link type is force-up, media
> type is LH
> output flow-control is unsupported, input
> flow-control is unsupported,
> 1000Mb/s
> input flow-control is off, output flow-control is
> off
> ARP type: ARPA, ARP Timeout 04:00:00
> Last input 00:00:00, output 00:00:00, output hang
> never
> Last clearing of "show interface" counters 5d19h
> Input queue: 0/75/0/0 (size/max/drops/flushes);
> Total output drops: 70098
> Queueing strategy: fifo
> Output queue :0/40 (size/max)
> 5 minute input rate 97000 bits/sec, 30 packets/sec
> 5 minute output rate 61000 bits/sec, 21
> packets/sec
> L2 Switched: ucast: 583137 pkt, 57707092 bytes -
> mcast: 218680 pkt,
> 13225926 bytes
> L3 in Switched: ucast: 35017196 pkt, 8122659003
> bytes - mcast: 2 pkt, 120
> bytes mcast
> L3 out Switched: ucast: 34692703 pkt, 10208105737
> bytes
> 35562769 packets input, 8835399769 bytes, 0 no
> buffer
> Received 368200 broadcasts, 0 runts, 0 giants,
> 0 throttles
> 0 input errors, 0 CRC, 0 frame, 0 overrun, 0
> ignored
> 0 input packets with dribble condition detected
> 34955158 packets output, 10891076517 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 output buffer failures, 0 output buffers
> swapped out
>
>
>
>
> "Charles Church" <cchurch@wamnet.com> on 03/11/2003
> 06:45:12 PM
>
> To: Ram Shummoogum/Quebec/IBM@IBMCA,
> <ccielab@groupstudy.com>
> cc:
> Subject: RE: output drops
>
>
> What's the load on that interface? Are you doing
> any rate-limiting?
>
> Chuck Church
> CCIE #8776, MCNE, MCSE
> Wam!Net Government Services
> 13600 EDS Dr.
> Herndon, VA 20171
> cell 585-233-2706
> cchurch@wamnet.com
>
> -----Original Message-----
> From: nobody@groupstudy.com
> [mailto:nobody@groupstudy.com]On Behalf Of
> Ram Shummoogum
> Sent: Tuesday, March 11, 2003 3:41 PM
> To: ccielab@groupstudy.com
> Subject: output drops
>
>
> Hi ALL:
>
> A show interface on a GIG port is showing me a large
> number of output
> drops. What is strange is that it is not
> experiencing any input drops.
> Duplex is FULL and speed set to GIG.
>
> Input queue: 0/75/0/0 (size/max/drops/flushes);
> Total output drops: 68368
> Queueing strategy: fifo
> Output queue :0/40 (size/max)
>
>
>
> Appreciate any input.
>
> Cheers,
> RAM
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