NetView is multi-threaded. I suggest you look at the manuals of NetView (which you have already done!) and do a netmon trace...then look at the polling information and how fast things are responding.
Stephen Hochstetler shochste AT us.ibm DOT com
International Technical Support Organization at IBM
Office - 512-838-6198 (t/l 678) FAX - 512-838-6931 http://www.redbooks.ibm.com