Edge Transport

Hi,

I have some questions about edge transport role:

I have two edge transport servers and two hub transports servers.

1. What do I need to configure except the edge sync to have the external mail flow?
2. For outbound mail flow , how does the hub transport servers load balance the messages?
3. For inbound mail flow , how does the edge transport servers load balance the messages?
4. What happens if a hub transport server fail?!
5. What happens if an edge transport server fail?!

Thank you!