[c-nsp] Input Queue

[Mohammad Khalil]

Hi John , Thanks for the reply
please find the output below
CR1.KJ-Building#sh module 
Mod Ports Card Type                              Model              Serial No.
--- ----- -------------------------------------- ------------------ -----------
  1    0  4-subslot SPA Interface Processor-400  7600-SIP-400       JAE1217FPWB
  2   16  SFM-capable 16 port 1000mb GBIC        WS-X6516A-GBIC     SAL1214LB5N
  3   48  SFM-capable 48 port 10/100/1000mb RJ45 WS-X6548-GE-TX     SAL1203D8UB
  5    2  Supervisor Engine 720 (Active)         WS-SUP720-3BXL     JAF1215DPHH

Mod MAC addresses                       Hw    Fw           Sw           Status
--- ---------------------------------- ------ ------------ ------------ -------
  1  001d.702f.4400 to 001d.702f.447f   2.5   12.2(33)SRD6 12.2(33)SRD6 Ok
  2  001f.6ca1.8300 to 001f.6ca1.830f   4.6   7.2(1)       8.7(0.22)SRD Ok
  3  001e.4ad1.bce0 to 001e.4ad1.bd0f  11.3   7.2(1)       8.7(0.22)SRD Ok
  5  001e.be6e.7bfc to 001e.be6e.7bff   5.6   8.5(2)       12.2(33)SRD6 Ok

Mod  Sub-Module                  Model              Serial       Hw     Status 
---- --------------------------- ------------------ ----------- ------- -------
 1/0 5xGE SPA                    SPA-5X1GE-V2       JAE1216EVQK  1.2    Ok
  5  Policy Feature Card 3       WS-F6K-PFC3BXL     JAF1213ARCG  1.8    Ok
  5  MSFC3 Daughterboard         WS-SUP720          JAF1213BJHC  3.1    Ok

Mod  Online Diag Status 
---- -------------------
  1  Pass
 1/0 Pass
  2  Pass
  3  Pass
  5  Pass

> Date: Mon, 13 Jun 2011 10:13:08 -0400
> From: johgill at cisco.com
> To: eng_mssk at hotmail.com
> CC: alumbis at gmail.com; cisco-nsp at puck.nether.net
> Subject: Re: [c-nsp] Input Queue
> 
> It is likely the flushed traffic is in the input queue to CPU, but a 
> 6500 can also account for rx queuing drops in this drops counter as an 
> aggregate counter.
> 
> In the show queueing output, we see 81 packets dropped:
> 
> Packets dropped on Receive:
>      BPDU packets:  0
> 
>      queue thresh             dropped  [cos-map]
>      ---------------------------------------------------
>      1     1                       81  [0 1 2 3 4 5 6 7 ]
> 
> I would watch the individual interfaces (show queueing interface) to see 
> if these dropped packets add up to the input queue drops you see on the 
> port-channel.
> 
> Can you run "show module" for us?
> 
> 
> Regards,
> John Gill
> cisco
> 919.392.2309
> 
> On 6/11/11 12:41 PM, Pete Lumbis wrote:
> > The input queue is the queue between the interface and the CPU, only
> > process switched traffic hits this queue. Drops in the input queue are
> > almost always due to a busy CPU.
> >
> > If you happen to have packets in the queue (the first number is
> > greater than 0) you can run "show buffers input interface<INTERFACE>
> > dump" and decode the packets.
> >
> > Also check out this troubleshooting doc
> > http://www.cisco.com/en/US/products/hw/routers/ps133/products_tech_note09186a0080094791.shtml
> >
> > -Pete
> >
> > On Fri, Jun 10, 2011 at 7:46 AM, Mohammad Khalil<eng_mssk at hotmail.com>  wrote:
> >>
> >> hi all
> >>
> >> i have etherchannel consisting of 5 G interfaces
> >> the port-channel is assigned to VLAN 10 (SVI created)
> >> i cleared the counters on the interface yesterday and today
> >> Input queue: 0/75/962/962 (size/max/drops/flushes)
> >> what is the issue ?
> >>
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