[c-nsp] "IP ARP throttled out the ARP request"

[Oliver Boehmer (oboehmer)]

Vincent De Keyzer <> wrote on Thursday, December 29, 2005 9:52 AM:

>>> When I try to ping an address I see in the CDP neighbour (it's the
>>> same VLAN), it shows in the ARP debug : "IP ARP throttled out the
>>> ARP request". 
>>> 
>>> Does anybody know what it means?
>> 
>> after sending a request, IOS will wait two seconds and print the
>> above message in the debug before it sends another ARP request for a
>> given destination.
> 
> So basically, it means that it did not receive any answer to the ARP
> request (and will hence send a new one)?

yes, exactly. You will see an "Incomplete" entry in your ARP cache, i.e.
the router has not been able to resolve this entry.

	oli