Solved

how to reduce cpu utilization on cisco router 2801?

Posted on 2014-11-23
2
339 Views
Last Modified: 2014-12-30
how to reduce cpu utilization on cisco router 2801. its is always above 95%/90%.
it I restart router it will work fine for sometime but within one hour it will reach to 90% again.
please help to solve it.
thanks
0
Comment
Question by:nainasipra
2 Comments
 
LVL 27

Accepted Solution

by:
Predrag Jovic earned 500 total points
ID: 40461572
First you need to know what eats CPU cycles. High CPU utilization happens when process-switch getting involved. Typical reasons: CEF is not applied to router, a lot of VPN connections, ACLs, some debug is enabled on router etc...
show processes CPU will show you process that are using CPU cycles, and according to what process causes high utilization depends possible resolution.
For much more info read this:
Cisco article - troubleshoot high CPU utilization
0
 

Author Comment

by:nainasipra
ID: 40490989
I have upgraded IOS, still the same
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

In the hope of saving someone else's sanity... About a year ago we bought a Cisco 1921 router with two ADSL/VDSL EHWIC cards to load balance local network traffic over the two broadband lines we have, but we couldn't get the routing to work consi…
In this article, I am going to show you how to simulate a multi-site Lab environment on a single Hyper-V host. I use this method successfully in my own lab to simulate three fully routed global AD Sites on a Windows 10 Hyper-V host.
Viewers will learn how to connect to a wireless network using the network security key. They will also learn how to access the IP address and DNS server for connections that must be done manually. After setting up a router, find the network security…
Internet Business Fax to Email Made Easy - With  eFax Corporate (http://www.enterprise.efax.com), you'll receive a dedicated online fax number, which is used the same way as a typical analog fax number. You'll receive secure faxes in your email, f…

895 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

13 Experts available now in Live!

Get 1:1 Help Now