[c-nsp] BGP/CPU usage 7600 SUP720-3BXL

[Elmar K. Bins]

kristian at juniks.net (Kristian Larsson) wrote:

> > The cpu statistics taken via SNMP shows:
> > 7600_A: 	cpu: 6%
> > 7600_B: 	cpu: 6%
> > 
> > But the "show processes cpu history" in each of my 7600s shows:
> > 
> >      3535353535355353535354544454454545466355353836352527353655
> >      3123315073911718081702428506808162808311383493295284357451
> > 100                                                            
> >  90                                                            
> >  80                                             *              
> >  70                                      *      *       *      
> >  60                                     **    * * * *   * * ** 
> >  50   * * * * * ** * * * * * ************* ** * * * * * * * ***
> >  40   * * ******************************** ** * *** * * * *****
> >  30  **********************************************************
> >  20  **********************************************************
> >  10  #############*#########################*##################
> >     0....5....1....1....2....2....3....3....4....4....5....5....


These are current snapshots of one of my 720B (no XL):

#sh proc cpu hist

        111111111111111555553333
        000001111122222222222222     22222          33333
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)


     6555635365453645536465463665563646546355553546546636556354
     0022149707991055991613756004009310842694394910900020030295
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%

This box carries three large external sessions, 165K prefixes each,
one internal with 130K prefixes, three more iBGP, 30K each and a
handful minimal-prefixes links (peers, cymru, an anycast site).

10 active sessions.

HTH,
	Elmar.

--

"Begehe nur nicht den Fehler, Meinung durch Sachverstand zu substituieren."
                          (PLemken, <bu6o7e$e6v0p$2 at ID-31.news.uni-berlin.de>)

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