Broadcast in Intervlan communication

Hi All,
New to this forum. Im preparing for my CCNA studies and i did attend couple of interviews and stuck with a question that "if there is a switch which has vlan 1 and vlan2 , By default there is 2 broadcast domain. and broadcast from one vlan cannot passed to another. But if we connect a Router to the switch and configure intervlan , now we can ping from Vlan 1 to vlan 2 . In this scenario Can the broadcasts from Vlan1 passed to Vlan2 ? "

If its possible then whats the whole idea of separating vlans and creating multiple broadcast domains?

Please help me understand.

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Comments

Dieg0M

No, VLANS separate broadcast domains at L2 using VLAN tags. Intervlan routing uses a L3 protocol like IP to route between VLAN's.

ssuresh005

Thanks Dieg0M,
So, Even if the router is configured for intervlan communication. Broadcast messages are not sent to other vlans. Am i right.?

kacper

ssuresh005 wrote: »

Thanks Dieg0M,
So, Even if the router is configured for intervlan communication. Broadcast messages are not sent to other vlans. Am i right.?

Correct, broadcasts do not travel between vlans or subnets.

ssuresh005

Thanks for clarifying friends..

TechGuru80

Remember that is why every network has a network address and a broadcast address and stays within that network.

ali7862110

Greeting to all of you

Hope every one is fine

I have some queries regarding VLAN

I have a firewall,I have a switch and access point which is connected to switch port below mentioned

port1 firewall
port2 AP
port3 AP
port4 AP
I had created 2 vlan with ip one is voice vlan and another one is Data vlan ,every port in the switch has 2 assigned vlan 1 &2 so should I have to create trunk port for port1

dontstop

Also don't forget that a ping is a unicast ICMP so it going from VLAN1 to VLAN2 via. InterVLAN routing is by no means an indication that broadcasts are leaking between the VLANs.