Practical BGP

Chapter 10

1:	What problems are solved by the BGP/MPLS-based approach that other peer-to-peer models don't?
A1:	In an MPLS/BGP VPN-based model, the service provider can take on some of the management of the customer's network connectivity while allowing the customer to manage their own address space and separating the customer's traffic and routes. Other VPN options either require the customer to build the entire network out, treating the VPNs as a simple layer 2 connection (like a circuit), or require the service provider to manage the customer's network address space as well.
2:	What is the difference between a route distinguisher and a route target?
A2:	A route distinguisher distinguishes two routes with the same prefix that are within two different ...