[c-nsp] ASR100x route tables sanity check

[Mack McBride]

It would need to be more granular than that.
IP options and a number of other things get software switched and a number of them already have specific knobs.
Better would be 'ip cef overflow software-switching [off|longest-prefixes|shortest-prefixes|last-learned]'.
Hopefully the new cef compression code will free up quite a bit of fib space and basically solve the problem.

LR Mack McBride
Network Architect

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Lukasz Bromirski
Sent: Sunday, February 05, 2012 6:41 AM
To: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] ASR100x route tables sanity check

On 2012-02-05 14:03, sthaug at nethelp.no wrote:

> It would be nice to have a knob to turn software forwarding off 
> completely. Makes it easier to find forwarding problems because they 
> tend to be visible right away when traffic stops...

If you apply CoPP policy that's strong enough, you'll see the problems right away if the packet switches through the RP. And the punt counters are pretty comprehensive, not to mention debug options that can describe the situation pretty verbosely.

But yes, 'no ip cef software-switching' or 'no platform software switching' would be potentially handy for binary approach to forwarding.

-- 
"There's no sense in being precise when |               Łukasz Bromirski
  you don't know what you're talking     |      jid:lbromirski at jabber.org
  about."               John von Neumann |    http://lukasz.bromirski.net
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