[c-nsp] 6509 IOS Question

Paul Stewart pstewart at nexicomgroup.net
Mon Jul 25 21:01:23 EDT 2005


Here's some interfaces....:)

GigabitEthernet1/1
          Switching path    Pkts In   Chars In   Pkts Out  Chars Out
               Processor        988     219707        392      32008
             Route cache     544388  222562444     421136  146377363
       Distributed cache    1379162  516298030    1389070  620112008
                   Total    1924538  739080181    1810598  766521379

Vlan6
          Switching path    Pkts In   Chars In   Pkts Out  Chars Out
               Processor        924     121168        521      41674
             Route cache     970724  496851456     833388  287506344
       Distributed cache    2587798 1214589209    2498375  924715665
                   Total    3559446 1711561833    3332284 1212263683
Vlan50
          Switching path    Pkts In   Chars In   Pkts Out  Chars Out
               Processor       1092     107408        950      71928
             Route cache     732417  268908650     929315  503993963
       Distributed cache    2340503  812200796    2069324 1022865759
                   Total    3074012 1081216854    2999589 1526931650


Does this look right?

Paul Stewart
Network Specialist
Nexicom Inc.
http://www.nexicom.net/



-----Original Message-----
From: Rodney Dunn [mailto:rodunn at cisco.com]
Sent: Mon 7/25/2005 8:45 PM
To: Paul Stewart
Cc: David Sinn; cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] 6509 IOS Question
 
check heaps runs every 60 seconds in the background.

You have enough traffic being switched by the MSFC at
interrupt level causing the CPU there (if 'sh align' is
clean).

Check 'sh int stat' and see if that gives you a starting
point on what interfaces to focus on. Clear the counters and
watch it for a couple minutes.

Rodney



On Mon, Jul 25, 2005 at 05:58:20PM -0400, Paul Stewart wrote:
> Here's the top results...
> 
> CPU utilization for five seconds: 5%/5%; one minute: 16%; five minutes: 16%
>  PID Runtime(ms)   Invoked      uSecs   5Sec   1Min   5Min TTY Process
>  104    26135340 240661081        108  0.23%  0.15%  0.17%   0 IP Input
>  132      100452   1779224         56  0.07%  0.00%  0.00%   0 Adj Manager
>  133     3489896  16214864        215  0.07%  0.03%  0.02%   0 CEF process
>    3         500        87       5747  0.00%  0.79%  0.20%   1 SSH Process
>    4   208672044  10576909      19729  0.00%  4.15%  3.44%   0 Check heaps
> 
> It seems that "check heaps" is the biggest offender.... any thoughts?
> 
> Thanks in advance,
> 
> Paul
> 
> 
> 
> -----Original Message-----
> From: David Sinn [mailto:dsinn at dsinn.com]
> Sent: Mon 7/25/2005 5:30 PM
> To: Paul Stewart
> Cc: cisco-nsp at puck.nether.net
> Subject: Re: [c-nsp] 6509 IOS Question
>  
> What's the output of a "show proc cpu" show?  That will tell you if it 
> is interrupt or process-level and if it is process-level which process 
> it is.
> 
> David
> 
> On Jul 25, 2005, at 1:20 PM, Paul Stewart wrote:
> 
> > Hi there...
> >
> > We have a 6509 here that pushes about 80 Mb/s of traffic at peak..
> > Nothing major... But the CPU sits at 20% on average (on the MSFC
> > card)....
> >
> > Had some company here today from another ISP and they average 3-4% with
> > a few hundred Mb/s going through their 6509 (msfc2 as well)... They run
> > 12.1 and we're running 12.2SXD4 release... Could the IOS be a reason 
> > for
> > much higher CPU?  It's not causing us any grief but will down the road
> > with more traffic coming online shortly to that box...
> >
> > Our 6509 is taking 3 full BGP feeds inbound and providing one full feed
> > out... OSPF on routing etc... Nothing major really.. No firewalling...
> >
> > Any thoughts?
> >
> > Paul Stewart
> >
> >
> > _______________________________________________
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> >
> 
> 
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