Re: [nsp] Input queue drops on FastEthernet

From: Dmitri Kalintsev (dek@hades.uz)
Date: Sun Jun 16 2002 - 21:16:18 EDT


You seem to get many throttles, which is an indicative of buffer depletion.
Try this:

buffers Fa4/1 perm 1000

If your IOS won't let you, get 12.0(21)S2 or 12.0(17)S1 if first one gives
you troubles.

Also, have a look at "sh buffers" output, the part that says "Private
particle pools" section related to your Fa4/1 interface.

On Fri, Jun 14, 2002 at 11:15:53AM +0300, richard bosire wrote:
> Hello
>
> My 7206 VXR [ NPE-400] seems to be accting up
>
> I am getting input queue drops on a Fasthernet , I have checked all
> that has been recommended on CCO but I can
> pin this down., what could be the issue here?
>
> cheers
>
> ./bosire
>
>
>
>
> gw1#show interfaces fastEthernet 4/1 switching
> FastEthernet4/1
> Throttle count 131404
> Drops RP 82556 SP 0
> SPD Flushes Fast 0 SSE 0
> SPD Aggress Fast 0
> SPD Priority Inputs 149 Drops 0
>
> Protocol Path Pkts In Chars In Pkts Out Chars Out
> Other Process 830 298404 4731 283860
> Cache misses 0
> Fast 0 0 0 0
> Auton/SSE 0 0 0 0
> IP Process 148684 16854547 141635 16776624
> Cache misses 128893
> Fast 18279868 4043337543 26184461 4143880632
> Auton/SSE 0 0 0 0
> ARP Process 2521 151260 39 2340
> Cache misses 0
> Fast 0 0 0 0
> Auton/SSE 0 0 0 0
> gw1#
>
>
> gw1#show int fa4/1
> FastEthernet4/1 is up, line protocol is up
> Hardware is i82543 (Livengood), address is 0008.e260.0871 (bia
> 0008.e260.0871)
> Internet address is 195.xx.xx.xx/26
> MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, rely 255/255, load 8/255
> Encapsulation ARPA, loopback not set
> Keepalive set (10 sec)
> Full-duplex, 100Mb/s, 100BaseTX/FX
> 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 00:28:30
> Queueing strategy: fifo
> Output queue 0/40, 0 drops; input queue 0/75, 67402 drops
> 5 minute input rate 3041000 bits/sec, 889 packets/sec
> 5 minute output rate 3180000 bits/sec, 1271 packets/sec
> 1524294 packets input, 652061959 bytes
> Received 0 broadcasts, 0 runts, 0 giants, 106344* throttles
> 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
> 0 watchdog, 0 multicast
> 0 input packets with dribble condition detected
> 2079776 packets output, 657671255 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
>
>
>
>
> isco Internetwork Operating System Software
> IOS (tm) 7200 Software (C7200-K3P-M), Version 12.0(16)S8, EARLY
> DEPLOYMENT RELEA
> SE SOFTWARE (fc2)
> TAC Support: http://www.cisco.com/tac
> Copyright (c) 1986-2002 by cisco Systems, Inc.
> Compiled Sat 02-Feb-02 23:56 by dchih
> Image text-base: 0x60008948, data-base: 0x60F48000
>
> ROM: System Bootstrap, Version 12.1(20000710:044039) [nlaw-121E_npeb
> 117], DEVEL
> OPMENT SOFTWARE
> BOOTFLASH: 7200 Software (C7200-KBOOT-M), Version 12.1(8a)E, EARLY
> DEPLOYMENT RE
> LEASE SOFTWARE (fc1)
>
> gw1 uptime is 6 weeks, 3 days, 15 hours, 40 minutes
> System returned to ROM by reload at 19:35:43 Nairobi Mon Apr 29 2002
> System restarted at 19:36:38 Nairobi Mon Apr 29 2002
> System image file is "disk1:c7200-k3p-mz.120-16.S8.bin"
>
> cisco 7206VXR (NPE400) processor with 114688K/16384K bytes of memory.
> R7000 CPU at 350Mhz, Implementation 39, Rev 3.2, 256KB L2, 4096KB L3 Cache
> 6 slot VXR midplane, Version 2.5
>
> Last reset from power-on
> Channelized E1, Version 1.0.
> X.25 software, Version 3.0.0.
> Primary Rate ISDN software, Version 1.1.
> 6 FastEthernet/IEEE 802.3 interface(s)
> 131 Serial network interface(s)
> 16 Channelized E1/PRI port(s)
> 125K bytes of non-volatile configuration memory.
>
> 125440K bytes of ATA PCMCIA card at slot 0 (Sector size 512 bytes).
> 8192K bytes of Flash internal SIMM (Sector size 256K).
> Configuration register is 0x102
>
>
>
---end quoted text---

-- 
 CCNP, CCDP (R&S)                          Dmitri E. Kalintsev
 CDPlayer@irc               Network Architect @ connect.com.au
 dek @ connect.com.au    phone: +61 3 9674 3913 fax: 9251 3666
 http://-UNAVAIL-         UIN:7150410    cell: +61 414 821 382



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