There's a growing set of new technologies with a range of approaches to finding the root-cause of a service problem. Examples discussed here are tools from Tavve, ProactiveNet, and Netuitive, along with two specialized tools from Arbor Networks and NetScaler that handle Distributed Denial of Service (DDoS) attacks.
There are many other tools available, of course. Among them are tools from Identify Software, OC Systems, Micromuse, Computer Associates, Tivoli, and Mercury Interactive, among others.
Tavve Software has a root-cause tool that is focused on Layer 2 connectivity; it builds a topology model with the connectivity relationships included.
When an alert is received, Tavve ...