From: Ram Shummoogum (rshummoo@ca.ibm.com)
Date: Tue Mar 11 2003 - 22:01:25 GMT-3
Chuck:
I will it give the queue change a shot tommorow. The buffers look clean.
I will tend to believe that it is a bug( could be cosmetic as reported by
Jerry), especially when it is happenning on 2 different blades in 2
different 6509s.
Thanks for the input.
RAM
"Charles Church" <cchurch@wamnet.com> on 03/11/2003 07:30:24 PM
To: Ram Shummoogum/Quebec/IBM@IBMCA
cc: <ccielab@groupstudy.com>
Subject: RE: output drops
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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