with 900 nodes in a local hosts file it is likely you are experiencing high CPU? You have a dual CPU box, do you have tools that will show how the CPU usage is on each? If you are total at 50%, could that mean that netmon is pegged one of the CPUs? In the past I did this on a NetView server on a 4-way. When I switched from a large hosts file to a caching DNS configuration my netmon CPU usage went from 100% (of a single CPU) down to 6%.

I suggest you build a DNS on your Windows machine or one on the same subnet and get rid of your hosts file. Having DNS co-exist on your NetView server is the best.


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