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New Member

High CPU Levels Problem

Hello Experts,

We're experiencing extremely high cpu levels on our router, 

UK00132-DM07-MapleCross#show proc cpu sorted 5min | exc 0.00
CPU utilization for five seconds: 78%/74%; one minute: 81%; five minutes: 82%
 PID Runtime(ms)     Invoked      uSecs   5Sec   1Min   5Min TTY Process 
  99       21512     4286605          5  0.23%  0.24%  0.23%   0 Ethernet Msec Ti 
 245      200092      290714        688  0.39%  0.22%  0.22%   0 Crypto IKMP      
  66       86164       35256       2443  0.15%  0.14%  0.15%   0 Per-Second Jobs  
  12      128252         585     219234  1.59%  0.20%  0.12%   0 Licensing Auto U 
 125       72048      477004        151  0.23%  0.12%  0.12%   0 IP Input         
 312      113648        7929      14333  0.39%  0.11%  0.11%   0 Multicast Replic 
 298       13476     1087810         12  0.07%  0.07%  0.07%   0 PPP manager      
   2       10036        7024       1428  0.15%  0.07%  0.07%   0 Load Meter       
 325       44156      364230        121  0.15%  0.06%  0.07%   0 OSPF-1 Hello     
   5       81804        7293      11216  0.39%  0.08%  0.06%   0 Check heaps      
 299       10804     1087810          9  0.07%  0.04%  0.05%   0 PPP Events       
 244       35724       98241        363  0.07%  0.03%  0.02%   0 Crypto IKE Dispa 
 323       88648      166887        531  0.07%  0.02%  0.02%   0 OSPF-1 Router 


The following is a description of the router, its a 1941

Cisco IOS Software, C1900 Software (C1900-UNIVERSALK9-M), Version 15.1(4)M4,



Cisco CISCO1941/K9 (revision 1.0) with 487424K/36864K bytes of memory.
Processor board ID FCZ164960LU
1 DSL controller
1 Ethernet interface
2 Gigabit Ethernet interfaces
1 ATM interface
3 terminal lines
1 Virtual Private Network (VPN) Module
2 Cellular interfaces
DRAM configuration is 64 bits wide with parity disabled.
255K bytes of non-volatile configuration memory.
250880K bytes of ATA System CompactFlash 0 (Read/Write)


I was wondering if someone could help identify the problem and suggest a few remedies.

Kind regards

Carlton
1 ACCEPTED SOLUTION

Accepted Solutions
New Member

look at fragmentation levels

look at fragmentation levels with the sh ip traffic command.

If it is very high, please consult your provider to set correct MTU size on the DSL line. Also set the ip tcp adjust-mss command for VPN tunnels (if used).

regards Sebastian

2 REPLIES
Hall of Fame Super Gold

What is your WAN bandwidth?

What is your WAN bandwidth?

New Member

look at fragmentation levels

look at fragmentation levels with the sh ip traffic command.

If it is very high, please consult your provider to set correct MTU size on the DSL line. Also set the ip tcp adjust-mss command for VPN tunnels (if used).

regards Sebastian

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