packet drop without ARP adjacency [Re: [c-nsp] IOS 12.2S Train]

[Rodney Dunn]

On Wed, Oct 05, 2005 at 10:07:09AM +0300, Pekka Savola wrote:
> Hi,
> 
> On Tue, 4 Oct 2005, David Coulson wrote:
> >> Normally, the SYN packet should cause an ARP entry to spring into
> >> existance, and the second SYN sent by the machine on the other end will
> >> then go through to the receiver.
> >
> > Wow, you're right - I can't believe I never noticed that. I just ran
> > some packets across 12.2(29) and the first SYN gets dumped.
> 
> Speaking of which, is there a counter or a command to check how many 
> packets have been dropped waiting for ARP adjacency to come up ?

sh cef drop pre CEF rewrite.

> 
> Is it 'RP PAS No Adjacency' and 'RP PAS Incomplete Adjacency' in "show 
> ip cef switching statistics" ?

Both after CEF rewrite.

> 
> -- 
> Pekka Savola                 "You each name yourselves king, yet the
> Netcore Oy                    kingdom bleeds."
> Systems. Networks. Security. -- George R.R. Martin: A Clash of Kings
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