[c-nsp] CoPP Hardware Counters on RSP720/7600

[David Granzer]

Hello,

with CoPP enabled and flood ping to the RSP720 I don't have higher CPU
utilization than is normal on my box. Without CoPP and ICMP flood
(ping -f -s 1400) the CPU util goes to 90% - 99%.

CPU utilization for five seconds: 96%/21%; one minute: 44%; five minutes: 20%

 PID Runtime(ms)   Invoked      uSecs   5Sec   1Min   5Min TTY Process
 194    23910192 426932747         56 46.38% 20.81%  5.12%   0 IP Input

The CPU utilization with CoPP enabled is depend on what rate you doing
policing for particular class, e.g. how many ICMP packet you are
conforming to the RSP.

Regards,
David



On 9/22/08, Sebastian Wiesinger <cisco-nsp at tracker.fire-world.de> wrote:
> * Ozgur Guler <gulerozgur at yahoo.co.uk> [2008-09-22 14:31]:
>
> > Hi Sebastian,
>  >
>  > Have you confirmed that mls qos is enabled globally?
>  > CoPP needs mls qos in order to work in HW.
>
>
> Yes, "mls qos" is enabled. I tried doing a flood-ping with hping3 and
>  have around 30-40% of CPU usage. This seems a little bit high, but I
>  heard from others that without CoPP the session to the RSP720 would
>  just freeze. With my CoPP enabled I was able to work without delay on
>  the RSP720.
>
>  I couldn't test the situation without CoPP but I hope I can do so
>  tonight.
>
>
>
>  Regards,
>
>  Sebastian
>
>  --
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