strange netstat -m output

[Stefan Krüger <skrueger@xxxxxxxxxxxxxxxx>]

hello,

$ netstat -m
193/1/13312 mbufs in use (current/peak/max):
193 mbufs allocated to data
4292490067/4292490067/6656 mbuf clusters in use (current/peak/max)
^^^^^^^^^^^^^^^^^^^^^
3434150 Kbytes allocated to network (220% of mb_map in use)
                                     ^^^^
0 requests for memory denied
0 requests for memory delayed
0 calls to protocol drain routines

could someone tell me why they're so high and if netstat -m's output is
correct

SK