K 10
svn:author
V 7
wollman
K 8
svn:date
V 27
1995-02-14T23:04:52.000000Z
K 7
svn:log
V 458
Attempt to make the host route cache a bit smarter under conditions of
high load:

	1) If there ever get to be more than net.inet.ip.rtmaxcache entries
	   in the cache, in_rtqtimo() will reduce net.inet.ip.rtexpire by
	   1/3 and do another round, unles net.inet.ip.rtexpire is less than
	   net.inet.ip.rtminexpire, and never more than once in ten minutes
	   (rtq_timeout).

	2) If net.inet.ip.rtexpire is set to zero, don't bother to cache
	   anything.

END