CCIE SP MPLS FAQ: Advanced MPLS/VPN Topologies
Q1. In the context of the MPLS VPN architecture, describe how to create an extranet.
Q2. When provisioning an extranet, can two organizations that use the same IP addressing structure communicate?
Q3. List some of the services that might be available through use of the central services topology.
Q4. How are the spoke sites within a central services topology prevented from communicating directly with other spoke sites?
Q5. In the hub-and-spoke topology, how does the hub site attract spoke-tospoke traffic?
Q6. For which type of topology is the AllowAS-in feature required and why?