From: Brian McGahan (bmcgahan@internetworkexpert.com)
Date: Tue May 10 2005 - 14:32:23 GMT-3
I seem to recall a bug a while back that malformed packets could fill up
the input queue and stop the router from processing IP Input. Are you
running a deferred release? If so check the release notes to see why it
was deferred.
Brian McGahan, CCIE #8593
bmcgahan@internetworkexpert.com
Internetwork Expert, Inc.
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> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
Of El
> ayachi HADEK
> Sent: Tuesday, May 10, 2005 12:14 PM
> To: ccielab@groupstudy.com
> Subject: input queue increasing
>
> Hi,
> In my router are terminated several tunnels ( GRE) and tunnels over
> tunnels.
> The FastEthernet0/0 interface has stopped forwarding traffic (and ospf
> became down). By looking to the show interface, I have noticed that
the
> input queue is 80/75/1501/0 (size/max/drops/flushes). To resolve this,
I
> have issued the interface command hold-queue 1000 in and now
hold-queue
> 4096 in with is the maximum allowed.
> Now, and without traffic in tunnel interfaces, the input queue is
stucked
> in
> 1809.
> Explanations!
>
> FastEthernet0/0 is up, line protocol is up
> Hardware is AmdFE, address is 0030.9475.5e40 (bia 0030.9475.5e40)
> Internet address is 172.29.1.1/24
> MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
> reliability 255/255, txload 1/255, rxload 1/255
> 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 01:52:16
> Input queue: 1809/4096/0/0 (size/max/drops/flushes); Total output
drops:
> 0
> Queueing strategy: fifo
> Output queue: 0/40 (size/max)
> 5 minute input rate 95000 bits/sec, 75 packets/sec
> 5 minute output rate 88000 bits/sec, 70 packets/sec
> 513705 packets input, 73581167 bytes
> Received 49046 broadcasts, 0 runts, 0 giants, 0 throttles
> 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
> 0 watchdog
> 0 input packets with dribble condition detected
> 484988 packets output, 65962058 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
>
>
This archive was generated by hypermail 2.1.4 : Fri Jun 03 2005 - 10:11:57 GMT-3