GNS3 Topology: MPLS VPN Hub and Spoke Topology Configuration

In certain circumstances, it may be desirable to use a hub-and-spoke topology so that all spoke sites send all their traffic toward a central site location. It can be achieved across MPLS VPN.

All traffic from the spoke sites, destined either for the central site services or for intersite connectivity, will flow via the central hub site. With this type of topology, the spoke sites export their routes to the hub site, and then the hub site re-exports the spoke site routes through a second interface (either physical or logical) using a different route target so that other spoke sites can import the routes. This causes the hub site to become a transit point for interspoke connectivity. (Guichard J, Pepelnjak I, 2001, MPLS and VPN Architectures, Cisco Press)

Here is the HUB and SPOKE MPLS VPN configuration. (this topology and configuration was taken from the book "MPLS Configuration On Cisco IOS Software"

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PART 2