From: Colin Barber (Colin.Barber@telewest.co.uk)
Date: Tue Jul 15 2003 - 11:49:15 GMT-3
I am using CAR on 7204VXR + 3640 on HSSI interfaces with FR encapsulation
and the CAR drops do count under interface drops. I am using IOS 12.1
Colin
-----Original Message-----
From: wing_lam@jossynergy.com [mailto:wing_lam@jossynergy.com]
Sent: 15 July 2003 15:25
To: Colin Barber
Cc: ccielab@groupstudy.com
Subject: RE: Inteface drop and CAR
Dear Colin,
Just opened a case to Cisco and their engineer confirm me that CAR drop
will not count under interface output drop, it stranges.
My testing result is CAR drop will count under interface drop, but my
platform is in 75 RSP while Cisco's engineer is in 72. To my perception,
CAR drop is processor managed so it should not shows inder interface,
please tell me if I am wrong.
I don't know whether this is platform specific, but it seems no body can
tells whether it's a hardware failure or normal behaviour.
Thx a lot,
BBD (Big Black Dog)
"Colin Barber"
<Colin.Barber@tele To:
"'wing_lam@jossynergy.com'" <wing_lam@jossynergy.com>,
ccielab@groupstudy.com
west.co.uk> cc:
Subject: RE: Inteface drop
and CAR
07/15/2003 07:10
PM
Rate-limit drops will count. It's a pain because CiscoWorks DFM reports on
drops and I get alarms all the time because we are rate-limiting one
application.
Anybody know of a solution. I still need to be informed of drops due to
bandwidth/queue issues just not policing drops.
Colin
-----Original Message-----
From: wing_lam@jossynergy.com [mailto:wing_lam@jossynergy.com]
Sent: 10 July 2003 08:10
To: ccielab@groupstudy.com
Subject: Inteface drop and CAR
Hi group,
I have setup several rate-limits in the ATM interface and I can see a lot
of packet drops as shown as following:
r75#sh int atm 4/0/0
ATM4/0/0 is up, line protocol is up
Hardware is cyBus ENHANCED ATM PA
MTU 4470 bytes, sub MTU 4470, BW 149760 Kbit, DLY 80 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ATM, loopback not set
Keepalive not supported
Encapsulation(s): AAL5
4096 maximum active VCs, 2 current VCCs
VC idle disconnect time: 300 seconds
0 carrier transitions
Last input 00:00:01, output 00:00:00, output hang never
Last clearing of "show interface" counters 1d03h
Queueing strategy: fifo
Output queue 0/200, 1847767 drops; input queue 0/75, 0 drops
5 minute input rate 754000 bits/sec, 361 packets/sec
5 minute output rate 1086000 bits/sec, 435 packets/sec
27977901 packets input, 2415708049 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
26825636 packets output, 3583850023 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
My question is whether the above output drop count includes the rate-limit
drop?
Thx,
BBD (Big Black Dog)
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