[opensuse] A good network mapping program?

Does anyone know of a good network mapping program or collection of programs to help in this area? I administer a small businesses network (60 workstations) and everything runs really well, but lately I've been experiencing strange problems. I'm looking for a way to detect bottle necks, improve performance, visually map my network based on detected nodes, etc. I have a simple amount of experience with networking so if my question isn't making a lot of sense, can you please tell me? Any help is appreciated. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org