Definitions for "Broadcast Storm"
A broadcast storm occurs when a packet triggers multiple responses from all hosts on a network or when computers attempt to respond to a host that never replies. As a result, duplicated packets are continuously created and circulated in the network, thus reducing network performance or even rendering it inoperable.
Multiple simultaneous broadcasts that typically absorb all the available network bandwidth and can cause a network to fail. Broadcast storms can be due to faulty network devices.
Excessive one-to-many or many-to-many transmissions, especially troublesome on Ethernet networks.