I am fairly new to Juniper as an engineer and I have been doing some reading lately concerning IRB versus vlans. I have noticed we use them in most configurations throughout our environment, IRB that is. Can anyone share some of the advantages associated with both of these? From my understanding VLAN is generally used more with our EX series equipment due to it being layer 2, I do however see it on some router configurations.
When would one use one over another or both in the same configuration for that matter?