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Cisco 2811 Router getting High load often.

Hi,

      We have a pair of cisco 2811 router and running in load sharing basis. in recent time we are observing hig CPU utilization on our econd router.Some times its reaching more than 90%. looked at sh proc cpu sort and sh proce mem sort..got to know IP input process is taking much resources of the router.

   Please let me know how i can fix this.

Router2#sh proce cpu sor

CPU utilization for five seconds: 83%/46%; one minute: 88%; five minutes: 88%

PID Runtime(ms)   Invoked      uSecs   5Sec   1Min   5Min TTY Process

  83    60417676  20843742       2898 26.93% 24.22% 24.02%   0 IP Input        

235     8154708  14234278        572  8.62%  9.41%  9.47%   0 IP RACL Ager    

226      965380   4076948        236  1.64%  1.73%  1.73%   0 IP NAT Ager     

241     2456740  13773392        178  0.32%  0.28%  0.27%   0 NAT MIB Helper  

  71         500       204       2450  0.24%  0.05%  0.02% 514 SSH Process     

216      916288  64616428         14  0.16%  0.18%  0.17%   0 MFR background p

   3      321588   3642472         88  0.08%  0.04%  0.06%   0 Spanning Tree   

109       58508   3099887         18  0.08%  0.02%  0.02%   0 CEF process     

Router2#sh proc mem sor

Processor Pool Total:  454961952 Used:   82152520 Free:  372809432

      I/O Pool Total:   12582912 Used:    5494112 Free:    7088800

PID TTY  Allocated      Freed    Holding    Getbufs    Retbufs Process

   0   0   73848340   27834276   36890812          0          0 *Init*         

  83   0 1455125940   71595016   24006316     813828      14820 IP Input       

   1   0  126077920  109710672   16509600          0          0 Chunk Manager  

  99   0   18950796   27491012    2135492          0          0 IP RIB Update  

244   0   23003232    8912232    1868616      45360          0 BGP Router     

   0   0 2037648224 2065500832     936496    1099688        520 *Dead*         

  56   0     655348       1328     636020          0          0 USB Startup    

170   0     579620     494052     403788          0          0 IPSEC key engine

   5   0   13345032   22655452     369292    7095832   11135388 Pool Manager   

  24   0     263208          0     272656     113400          0 EEM ED Syslog  

168   0  890926052  884245968     198960      38556          0 Crypto IKMP    

158   0     117896        544     126412          0          0 Crypto WUI     

194   0     189600      73092     123412          0          0 VLAN Manager   

Thanks

Prasath.R

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