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How do I generate broadcast storm?

By Andrew Adams

I started to study networking and I have two cisco switches, and I want generate broadcast storm to test Spanning Tree, How do I do?

2 Answers

for gnu ping

ping -b -f <bcast addr>

This will flood ping the broadcast address however you must be the superuser to do so ( aka root ). In my very limited test sending 2 packets generated over 183 responses so make sure you do not do this on a production network for long.

3

you can do it easily just disable spaning make loop , connect the tow switches using tow cables , and through console go to the ports which you connect to and disable apaning tree :

from switch console conf t

interface fastethernet (interface number)

spanin portfast

repeat this on all the ports connected between switchs , and switch will hang when connect your pc on any port

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