[c-nsp] CPU utilization for handling interrupt

[Pete Lumbis]

TCP Adjust-mss causes the 6k to punt the SYN to SW. I'm not sure if this
will be process switched or CEF switched (interrupt), but I don't see a
reason why we couldn't do it in software CEF.

-Pete

On Wed, Oct 5, 2011 at 8:20 AM, Nick Hilliard <nick at foobar.org> wrote:

> On 05/10/2011 12:15, Waseem wrote:
> > It is a regular internet traffic to port 80, from our customers, which
> should be CEF switched.
>
> Sounds like your router is punting all traffic.  Are you seeing the
> following errors in your logs?
>
> > %CFIB-SP-7-CFIB_EXCEPTION : FIB TCAM exception, Some entries will be
> software switched
>
> If this is the case, you need to drop the number of routes that the box is
> handling, and then reboot the system.  Once the FIB limits are exceeded on
> this platform, rebooting is the only way to revert to hardware forwarding.
>
> Nick
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