K 10
svn:author
V 2
np
K 8
svn:date
V 27
2009-09-08T21:17:17.883765Z
K 7
svn:log
V 325
Add arp_update_event.  This replaces route_arp_update_event, which
has not worked since the arp-v2 rewrite.

The event handler will be called with the llentry write-locked and
can examine la_flags to determine whether the entry is being added
or removed.

Reviewed by:	gnn, kmacy
Approved by:	gnn (mentor)
MFC after:	1 month

END