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Newbie query!

kakoli_basu

How does router and switch handle packets destined for broadcast address?

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Comments

mikej412

You'll want to make sure you understand broadcast domains and collision domain concepts..... But in general:
Routers drop broadcasts
Switches forward broadcasts

Daniel333

Tatoo what Mike said on your arm somewhere. That concept never goes away.

cisco_lover

The router do not forward broadcast IP PACKETS unless otherwise configured.
A layer 3 switch do not forward broadcast IP PACKETS unless otherwise configured.

The router do not forward broadcast FRAMES.
The Switch forwards broadcast FRAMES out of the all the interfaces of the same vlan except the interface on which the broadcast FRAMES is received.

ColbyG

cisco_lover wrote: »

The router do not forward broadcast IP PACKETS unless otherwise configured.
A layer 3 switch do not forward broadcast IP PACKETS unless otherwise configured.

The router do not forward broadcast FRAMES.
The Switch forwards broadcast FRAMES out of the all the interfaces of the same vlan except the interface on which the broadcast FRAMES is received.

An L3 switch WILL forward broadcasts (within a broadcast domain) on its L2 ports.

kakoli_basu

Got it!
Thanks everyone!!