Question { IBM, 16510 }

I have layer 3 Cisco 3560(Multilayer) switch right.How we can configure sub interface & Inter VLAN(we have vlan 2,3 & 10 ),Each VLan talk with each other?

Answer

1)int fa 0.2 ->when u creat sub interface then u used this
command(if ur have fast ethernet 0 is available).
2)when u want every vlan talk to eatch other then u to do
ur switch port which is connect the router ethernet port is
to be "trunk port" by using the trunk port command..

Question { IBM, 10637 }

what is a routing ?what is the use of routing?

Answer

when the data packets travel bewtten router to router then
we call this prosess routing. routing is use for data
communication in our network.