No ip-route cache with no keywords afterwards refers to the fast-switch handling of packets. CEF is usually enabled globally on the device (and thus is enabled for each interface), so this forces the interface to use CEF and ensures fast-switching is not enabled on the port.
More info: http://www.cisco.com/en/US/docs/ios/12_3/switch/command/reference/swi_i1.htm l#wp1110844 On 2/25/09 6:42 PM, "Steve Bertrand" <[email protected]> wrote: > 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 > _______________________________________________ > cisco-nsp mailing list [email protected] > https://puck.nether.net/mailman/listinfo/cisco-nsp > archive at http://puck.nether.net/pipermail/cisco-nsp/ _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
