I have seen that the term flooding is always associated with Layer 3 and above For e.g. UDP flooding, ping flooding, and broadcast is for Layer 2.
As the term defines itself,flooding is process of giving more than the capicity,is always associated with hacking. Whereas broadcasting is the term which is basics of networking.All the network devices do the broadcasting.
When a frame is broadcast, the destination address will be all ones (ff.ff.ff.ff.ff.ff).
When a switch or bridge floods, it send the frame out all ports, but the source and destination addresses remain intact (no broadcast address).
The original purpose (with bridges) is to cover the circumstance where a client may exist on the network that the bridge has not yet heard from.
Bridges and switches find the client addresses by listening for the source address of frames passing through. When it sees an address that is not yet inthe forwarding table, it adds the address, if the address exists in the current forwarding table, the address is refreshed and the aging timer is reset.
We are pleased to announce availability of Beta software for 16.6.3.
16.6.3 will be the second rebuild on the 16.6 release train targeted
towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are
looking for early feedback from customers befor...
Introduction Featured Speakers Luis Espejel is the Telecommunications
Manager of IENova, an Oil & Gas company. Currently he works with Cisco
IOS® and Cisco IOS XE platforms, and NX to some extent. He has also
worked as a Senior Engineer with the Routing P...
In this session you can learn more about Layer 3 multicast and the best
practices to identify possible threats and take security measures. It
provides an overview of basic multicast, the best security practices for
use of this technology, and recommendati...