I had this problem with spikes on a 3560 switch. The problem was some brute force or scanning on port 22 ssh.
Port 22 ssh was open and unfiltered. After created an acl for access filtering on this port, the spikes were gone. On Tue, Sep 14, 2010 at 2:08 PM, Farzad A. Cheema <[email protected]> wrote: > Hi Guys, > > > > Our 6509 switch (12.2(18)SXF15) is experiencing high CPU due to these 3 > processes. > > > > · BGP Scanner > > · BGP Router > > · BGP Scanner > > > > I have done some basic troubleshooting and can’t find the problem. Even the > Cisco Bug Tool Kit is not showing any reported bug in this IOS. > > > > The interesting thing is that the average CPU is 25 % while there are spikes > of 100 % all the time. Can anyone suggest what could be causing it and why > the above processes are not settling down? Below is the output of my “show > processes cpu history” command. > > > > Any useful commands would be appreciated. > > 8 11111 555553333344445555555555 22222 444 > 0555551111155555222225555588888888877777444448888822222777 > 100 > 90 > 80 * > 70 * > 60 * ********** > 50 * ***** ************** *** > 40 * ************************ *** > 30 * ************************ ***** *** > 20 * ************************ ***** *** > 10 **************************************** ***** *** > 0....5....1....1....2....2....3....3....4....4....5....5.... > 0 5 0 5 0 5 0 5 0 5 > > CPU% per second (last 60 seconds) > > 11 > 8987007979979797799999899889998699699969699789997997799899 > 4967001939799695599959199999998794911959879469332996199249 > 100 * ** * ** * * ***** ** *** * * * ** * ** ** * > 90 ** ** * ** * * ***** ******** ** *** * ** **** ** ** ** > 80 ****** * ********************** ** *** * ** **** *** ***** > 70 ********************************************************** > 60 ********************************************************** > 50 ********************************************************** > 40 **#****#*#**#*********************#******#**#******#****** > 30 #*#*#**#*#**#*#**#*#**#*#**#*#**#*#*##*#*#**#*#**#*#**#*#* > 20 ###############*#########*#########*###########*########## > 10 ########################################################## > 0....5....1....1....2....2....3....3....4....4....5....5.... > 0 5 0 5 0 5 0 5 0 5 > > CPU% per minute (last 60 minutes) > * = maximum CPU% # = average CPU% > > 111111111 1111 11111111111 1 11111 1111111111 11111 111111111111111111 > 0000000009000090000000000090900000900000000009000009000000000000000000 > 0000000009000090000000000090900000900000000009000009000000000000000000 > 100 ********************************************************************** > 90 ********************************************************************** > 80 ********************************************************************** > 70 ********************************************************************** > 60 ********************************************************************** > 50 ********************************************************************** > 40 ********************************************************************** > 30 *#*************#*****#****##****************************************** > 20 ###################################################################### > 10 ###################################################################### > 0....5....1....1....2....2....3....3....4....4....5....5....6....6....7. > 0 5 0 5 0 5 0 5 0 5 0 5 0 > > CPU% per hour (last 72 hours) > * = maximum CPU% # = average CPU% > > > > Cheers, > Farzad > > > _______________________________________________ > For more information regarding industry leading CCIE Lab training, please > visit www.ipexpert.com > > _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com
