Creating and then trouble-shooting a broadcast storm

Obdurate

I ran into a broadcast storm when helping a client remotely and it got me to thinking; how would I go about creating a broadcast storm in my test environment and then how would I go about trouble-shooting the issue?

Pinging, traceroute, and telnet were useless as the network was saturated with broadcast messages. The only thing I could do is use tshark to watch network traffic.

Any suggestions on how to build my test lab (I have three 2950's and three 2620 XMs) to simulate a work environment broadcast storm? Any suggestions on how to trouble shoot the issue remotely?

Thank you in advance,

Obdurate

Vask3n

This was the first video that came to mind since it is what he is doing (danscourses), as you can see it starts with a broadcast storm:

Spanning Tree Protocol STP in Packet Tracer - Part 1 - YouTube

iamme4eva

Either turn spanning-tree off, or enable portfast but without any of the security features and put a hub between two switches.