[c-nsp] why disable ip cache and direct broadcast in switch

[Steve Bertrand]

Jay Hennigan wrote:
> ann kok wrote:

>>  no ip route-cache
> 
> This is generally NOT a good thing, other than for debugging during
> low-traffic scenarios.  It forces traffic to be process-switched and
> will cause high (or very high) router CPU utilization.

...I had a misunderstanding about this then... I thought "no ip
route-cache" forced traffic to use cef where possible. Almost makes
sense that route-cache == cef :)

I've only seen the "no ip route-cache" in practise once. It was years
ago on a 3620 router on a PtP serial T1 link to MCI.

Steve