Architectural Considerations for Mapping Distribution Protocols

In this contribution, we present a discussion of some architectural ideas pertaining to the mapping distribution protocol. The efficiency of this protocol in terms of response time and the volume of traffic load it generates are important considerations. We consider how Egress Tunnel Routers (ETRs) can perform aggregation of end point ID (EID) address space belonging to their downstream delivery networks. This aggregation may be useful for reducing the processing load and memory consumption associated with mapping messages, especially in some resource-constrained components of the mapping distribution system. Some interesting architectural issues, their potential solutions and trade-offs are discussed. The overarching goal is to expose and discuss some subtleties in design considerations for mapping distribution and management.