10-29-2008 10:59 AM - edited 03-04-2019 12:07 AM
I have two cisco routers connected via leased line ,suddenly the cpu utilization became 99.9% ,the show processes cpu gives high utilization for "encrypt proc" process???what this means???!!!!
10-29-2008 10:56 PM
when I disable the VPN between the two routers the cpu usage return back to normal situation ???any help??!
10-30-2008 03:43 AM
It seems your router is recieving a lot of traffic that needs te be encrypted but it seems the router can't handle the load.
Does the router has an hardware vpn accelator? If not Encryption is handled by the router CPU.
Maybe try to reduce the traffic that needs to be encrypted.
10-30-2008 03:51 AM
the router was working properly without any problem ,traffic load is the same from a long time ,,,,,,no increase in traffic load
10-30-2008 07:45 PM
What model router, what IOS version, how much traffic?
Have you tried updating the IOS? It could be a bug.
10-31-2008 06:42 AM
router model =2600
IOS version =
c2600-adventerprisek9mz.123.14.T5.bin
traffic on the lease linenot more than 30%
10-31-2008 07:07 AM
If you can find one then a "AIM-vpn/epII" would help by offloading the encryption
(someone please correct me if I'm wrong I know that the aim-vpn/ep works on a 2651 but I'm unsure about the II)
it maybe possible something on the other side of the tunnle has changed
10-31-2008 01:03 PM
for sure the problem is not on the traffic load ,traffic didnt exceed 30% on the lease line..suddenly the cpu utilization become 99% the process utilizing the cpu is "encrypt proc"
any other suggestion??
thanks for all replies.....
10-31-2008 02:15 PM
Can you do
"Show Processes Cpu History"
11-01-2008 10:58 PM
11-03-2008 11:07 AM
Any suggestions???
11-11-2008 10:27 AM
When you stop to use encrypt something happen? A proccess go down? Infact, when the proccess grow up? when you start some proccess in a router, like dhcp, nat, etc...?
Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community: