Hello,

This is an enquiry prompted by threads:
- Cisco 3620 and very low throghuput
- CPU utilization on the router
on comp.dcom.sys.cisco

Cisco say:

http://www.cisco.com/en/US/products/...800a70f2.shtml

Cisco 10000 Series Routers
Troubleshooting High CPU Utilization on Cisco Routers
Document ID: 15095

....
Each active translation generates CPU
interrupts and has an impact on
the total CPU utilization of the router. A very
large number of translations can have a
performance impact on the router.

####### End Cisco say: ########

This makes no sense to me. For what purpose
might an interrupt be raised per NAT
table entry?

Any suggestions anyone?

Seems either bad (well really, really bad)
design or an incorrect statement.
Since cisco don't do too much really bad
design my money is on the latter.

However the docs are not too shabby either.

How large migh be "very large"?

If someone can come up with a reason for
generating such interrupts how often might
they be generated per table entry?

Ideas anyone?

Thanks.