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Application of Multiple Instances Single-homed to an RRPP Aggregation Ring
In Figure 18-27, CEs access an RRPP ring through UPEs, and then access the backbone network through the PE-AGG.
Four UPEs and one PE-AGG construct a ring in two domains: ring 1 in domain 1 and ring 1 in domain 2. Domain 1 processes data in VLANs 101 to 200 and domain 2 processes data in VLANs 1 to 100.
Domain 1 maps instance 1 and domain 2 maps instance 2. Services in VLANs 1 to 200 are sent from CEs.
Service VLANs processed in the two RRPP domains do not overlap and all service VLANs are processed. Traffic in domain 1 and domain 2 is load balanced on the RRPP ring.