how many routed interfaces do you have ( sh ip int brief with ip addresses ) ?
if more than 8 change the sdm template to routing 
 
you can use sh platform ip unicast failed route  to see if routes are failing 
to be programmed into tcam
 
Brian
 
 
 
 
________________________________

From: Chris Lane [mailto:clane1...@gmail.com] 
Sent: venerdì 24 aprile 2009 11.17
To: Brian Turnbow
Cc: Peter Rathlev; cisco-nsp@puck.nether.net
Subject: Re: [c-nsp] 3750 High Cpu IP Input


sh controllers cpu-interface 
ASIC    Rxbiterr   Rxunder    Fwdctfix   Txbuflos   Rxbufloc   Rxbufdrain
-------------------------------------------------------------------------
ASIC0     0          0          0          0          0          0         
ASIC1     0          0          0          0          0          0         


cpu-queue-frames  retrieved  dropped    invalid    hol-block  stray
----------------- ---------- ---------- ---------- ---------- ----------
rpc               0          0          0          0          0         
stp               1807       0          0          0          0         
ipc               0          0          0          0          0         
routing protocol  1516326    0          0          0          0         
L2 protocol       27         0          0          0          0         
remote console    0          0          0          0          0         
sw forwarding     915        0          0          0          0         
host              2014       0          0          0          0         
broadcast         1766       0          0          0          0         
cbt-to-spt        0          0          0          0          0         
igmp snooping     1518651    0          0          0          0         
icmp              45         0          0          0          0         
logging           0          0          0          0          0         
rpf-fail          0          0          0          0          0         
queue14           0          0          0          0          0         
cpu heartbeat     14116      0          0          0          0         

ODD i have disabled IGMP SNOOPING... 

On Fri, Apr 24, 2009 at 4:19 AM, Brian Turnbow <b.turn...@twt.it> wrote:


        You can use  show controller cpu  to help see whats going to the cpu
        Make sure you have no ip redirects and no proxy arp on all the 
interfaces.
        How many routed interfaces do you have ?
        The output below for "max" is for 8 routed interfaces if you have more 
you should change to the desktop switching template.
        With your roughly your values for indirectly connected routes and 13 ip 
interfaces on a box I needed to switch the template "sdm prefer routing" 
requies reload.
        
        Regards
        
        Brian
        




        -----Original Message-----
        From: cisco-nsp-boun...@puck.nether.net 
[mailto:cisco-nsp-boun...@puck.nether.net] On Behalf Of Chris Lane
        Sent: venerdì 24 aprile 2009 1.09
        To: Peter Rathlev
        Cc: cisco-nsp@puck.nether.net
        Subject: Re: [c-nsp] 3750 High Cpu IP Input
        
        
        sh platform tcam utilization
        
        CAM Utilization for ASIC# 0                      Max            Used
                                                    Masks/Values    Masks/values
        
         Unicast mac addresses:                        784/6272         37/235
         IPv4 IGMP groups + multicast routes:          144/1152          6/26
         IPv4 unicast directly-connected routes:       784/6272         37/235
         IPv4 unicast indirectly-connected routes:     272/2176         52/326
         IPv4 policy based routing aces:                 0/0             0/0
         IPv4 qos aces:                                528/528          18/18
         IPv4 security aces:                          1024/1024         57/57
        
        Note: Allocation of TCAM entries per feature uses
        a complex algorithm. The above information is meant
        to provide an abstract view of the current TCAM utilization
        
        Hope this helps.
        
        On Thu, Apr 23, 2009 at 4:41 PM, Peter Rathlev <pe...@rathlev.dk> wrote:
        
        > On Thu, 2009-04-23 at 16:15 -0400, Chris Lane wrote:
        > >  This box has been in production for over a year and doesn't really 
do
        > > to much as you can see from my orig thread it moves about 11MB.
        > >
        > > This just started late last night yet we didn't add any new customer
        > > nor did anybody even touch switch as the device is remote.
        > >
        > > I read in an older thread regarding same thing that the person
        > > rebooted and of course it resolved issue. I am planning to do that
        > > Early tomorrow am, but
        > > i really want to know what the heck is causing this.
        > >
        > > Yes CEF is running.
        >
        > What about TCAM utilisation ("show platform tcam utilization")?
        >
        > Regards,
        > Peter
        >
        >
        >
        
        
        --
        //CL
        
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-- 
//CL

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