On Thu, 18 Aug 2005, [ISO-8859-1] Harald Nordgård-Hansen wrote:
I'm not really sure what code is being used and what is not. It seems to me that if eth_rebuild_header in net/ethernet/eth.c is called, it will update the used-parameter of the arp entry (done by the call to arp_find), which will delay expiry. But I'm not sure if this is actually called anywhere.
Right.. I follow. This delays the neigh status change making the arp entry ot be considered valid for another delay_probe_time (neigh/delay_first_probe_time sysctl) interval. But as you I am not sure exacly when this path is taken. From what I gather this is only supposed to be taken after a packet has been delayed due to ARP lookup but there might be other paths ending up here...
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