I have one shared MPLS DS3 circuit that having the Bandwidth of 9 Mbps that have been configured on our central site (Router-Cisco 3845). There are three remote sites which are connected to this central site through the MPLS circuit. All the three sites connected to this central site with the different bandwidth i.e.1.5 Mbps, 6.144 Mbps, and 4.612 Mbps. Moreover, I am creating the GRE tunnel between the central to each remote site.
Please let us know what exactly the configuration that I need to be done on all the routers including Central router & Remote routers to accomplish this connectivity.