Case Study 9: Implementing VPLS Services with the GSR 12000 Series
VPLS services emulate an Ethernet bridge in an IP/MPLS network. It is an end-to-end architecture that allows IP/MPLS networks to provide multipoint Ethernet services. Operation is similar to an Ethernet bridge; that is, it forwards using the destination MAC address, learns source addresses, and floods broad-/multicast. Several IETF VPLS drafts exist that are based on LDP and BGP. This feature and its implementation on a GSR 12000 series router form the core of this case study.
Figure 14-49 depicts an MPLS-enabled GSR network that implements different VPLS services along with the base configurations prior to the implementation of VPLS services on the PE routers.
Figure 14-49. ...
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